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l/d Chicken Flavour Dry Dog Food

l/d Chicken Flavour Dry Dog Food

Hills Prescription Diet

Overview

Hill's Prescription Diet l/d Chicken Flavour Dry Dog Food is a clinical diet formulated to support dogs with liver disease or hepatic conditions that require careful nutritional management. The liver is central to digestion, detoxification, and metabolism, and when its function is compromised, even standard diets can place undue stress on already strained hepatic tissues. This formula provides carefully controlled levels of protein, sodium, and copper to minimise liver workload while still meeting the dog's complete nutritional requirements.

Formulated by Hill's nutritionists and veterinarians, it is designed to help manage symptoms of hepatic disease — including hepatic encephalopathy — and support the best possible quality of life for affected dogs. It is suitable for long-term feeding as part of an ongoing hepatic management plan. Always consult your veterinarian before placing your dog on a specialised liver diet.


Nutritional Analysis

A nutritional analysis shows how a dog food is made up of its main nutrients, such as protein, fat, fibre and other components. This helps you understand where the food’s nutrition and energy come from, and how the formula is balanced.

Protein
18.1
%
0%
Fat
23.9
%
0%
Fibre
3
%
0%
Ash
2.89
%
0%
Carbohydrates
49.2
%
0%
Energy
404
0
 kcal/100g

Ingredients

Brewers Rice, Chicken, Chicken Fat, Egg Product, Soybean Meal, Flaxseed, Powdered Cellulose, Chicken Liver Flavour, Dicalcium Phosphate, Lactic Acid, Soybean Oil, Potassium Chloride, Dried Beet Pulp, Glyceryl Monostearate, Calcium Carbonate, DL-Methionine, Vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate, Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Pyridoxine Hydrochloride, Biotin, Vitamin B12 Supplement, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement, Menadione Sodium Bisulphite Complex), Fish Oil, Choline Chloride, Iodised Salt, L-Lysine, L-Arginine, Taurine, Minerals (Zinc Oxide, Manganous Oxide, Calcium Iodate, Sodium Selenite), L-Tryptophan, L-Carnitine, Mixed Tocopherols, Natural Flavours, Beta-Carotene.

Brewers Rice
Brewers Rice

Broken Rice, Rice Fragments, Rice Grits, Oryza Sativa

Summary

Brewers rice is a by-product of rice milling, consisting of small, broken rice grains derived from the Oryza sativa plant. It serves as a digestible carbohydrate source, providing energy for pets. Brewers rice is included in its natural, whole-food form, not as a processed extract or compound, ensuring a consistent and safe ingredient for pet food formulations.

Manufacturer Benefits

Brewers rice is included as a cost-effective carbohydrate source that provides bulk and energy to pet food formulations. Its use helps optimise production costs while maintaining product texture and consistency.

Chicken
Chicken

Gallus Gallus Domesticus, Poultry Meat, Domestic Fowl, Broiler Meat

Summary

Chicken is a high-quality animal protein sourced from poultry, commonly used in pet foods for its rich amino acid profile and palatability. It provides essential nutrients to support muscle maintenance and overall health. In premium pet foods, chicken is typically included in its natural, whole form, ensuring optimal nutrient availability and digestibility for pets.

Manufacturer Benefits

Chicken is included as a primary animal protein source to meet nutritional requirements and enhance palatability for pets. Its recognisable presence on the label also appeals to consumers seeking high-quality, meat-based ingredients.

Chicken Fat
Chicken Fat

Poultry Fat, Gallus Gallus Domesticus Fat, Rendered Chicken Fat, Chicken Oil

Summary

Chicken fat is an animal-derived ingredient obtained from rendering chicken tissue. It serves primarily as a concentrated source of energy and essential fatty acids, supporting skin and coat health in pets. Chicken fat is used in its natural rendered form, not as a raw or unprocessed fat, ensuring palatability and digestibility while providing a stable, high-quality lipid source in pet food formulations.

Manufacturer Benefits

Chicken fat is included as a highly digestible source of animal fat, providing essential fatty acids and enhancing the palatability of the product. It also contributes to the energy content of the food in a cost-effective manner.

Egg Product
Egg Product

Dried Egg, Liquid Egg, Frozen Egg, Ovum Gallus Gallus

Summary

Egg product is a nutrient-rich ingredient derived from whole eggs, typically sourced from hens. It serves as a high-quality animal protein, providing essential amino acids, vitamins, and minerals to support overall pet health. In pet food, egg product is used in a processed, pasteurised form rather than raw, ensuring safety, digestibility, and consistent nutritional value for pets.

Manufacturer Benefits

Egg product is included as a high-quality, highly digestible protein source to support essential amino acid requirements in pet food. It also enhances palatability and can improve the nutritional profile for marketing purposes.

Soybean Meal
Soybean Meal

Defatted Soybean Meal, Soyabean Meal, Glycine Max Meal, Soybean Cake

Summary

Soybean meal is a high-protein ingredient derived from the residue of soybeans (a legume plant) after oil extraction. It serves primarily as a concentrated protein source to support muscle development and overall health in pets. Rather than being used in its whole form, soybean meal is processed to enhance digestibility and nutrient availability, making it a practical and efficient dietary component.

Manufacturer Benefits

Soybean meal is included as a cost-effective protein source to help meet nutritional requirements while managing production expenses. It also serves as a functional ingredient to improve kibble texture and binding.

Linseed
Linseed

Flaxseed, Linum Usitatissimum, Flax, Flaxseed Oil

Summary

Linseed, also known as flaxseed, is a plant-derived ingredient sourced from the seeds of the flax plant (Linum usitatissimum). It is primarily included in pet food for its high content of omega-3 fatty acids and dietary fibre, supporting skin health and digestion. Linseed is used in its natural, whole or ground form to optimise nutrient availability and functional benefits.

Manufacturer Benefits

Linseed is included as a source of omega-3 fatty acids and dietary fibre, supporting skin and coat health as well as digestive function. Its presence also allows manufacturers to market the product as containing plant-based nutrients and functional ingredients.

Cellulose Powder
Cellulose Powder

Microcrystalline Cellulose, Powdered Cellulose, E460, Cellulosum

Summary

Cellulose powder is a plant-derived ingredient sourced primarily from wood pulp. It serves as an insoluble dietary fibre, supporting digestive health and stool quality in pets. Rather than being used in its raw, fibrous state, cellulose is processed into a fine powder to optimise its functional benefits and ensure safe, consistent inclusion in pet food formulations.

Manufacturer Benefits

Cellulose powder is included as a cost-effective fibre source to aid stool quality and promote digestive health. It also functions as a bulk-adding agent, helping to control calorie density in pet food formulations.

Chicken Liver Flavour
Chicken Liver Flavour

Chicken Liver Extract, Gallus Gallus Domesticus Liver Flavour, Chicken Hepatic Flavour, Chicken Liver Essence

Summary

Chicken liver flavour is a palatant derived from animal sources, specifically chicken liver, and is used to enhance the taste and aroma of pet foods. Its primary function is to improve palatability, encouraging consistent consumption. This ingredient is not used in its whole food form; instead, it is processed and concentrated to deliver a consistent and appealing flavour profile.

Manufacturer Benefits

Chicken liver flavour is included to enhance palatability, encouraging dogs to consume the product. It also allows manufacturers to market the food as having a desirable, meat-based taste without the cost of using whole chicken liver.

Dicalcium Phosphate
Dicalcium Phosphate

Calcium Hydrogen Phosphate, Dibasic Calcium Phosphate, E341(ii), Calcium Phosphate Dibasic

Summary

Dicalcium phosphate is a mineral compound derived from calcium and phosphorus, commonly sourced from phosphate rock. It serves as a key dietary supplement in pet foods, providing essential calcium and phosphorus to support healthy bones and teeth. Dicalcium phosphate is not used in its natural raw or metallic state; instead, it is utilised in its purified compound form to ensure safety and optimal absorption.

Manufacturer Benefits

Dicalcium phosphate is included as a cost-effective mineral supplement to provide essential calcium and phosphorus for skeletal health. It also serves as a functional agent to improve product texture and processing stability.

Lactic Acid
Lactic Acid

2-Hydroxypropanoic Acid, E270, DL-Lactic Acid, L(+)-Lactic Acid

Summary

Lactic acid is an organic compound of microbial origin, commonly produced through the fermentation of carbohydrates. It is primarily included in pet food as a preservative and acidifier, helping to inhibit the growth of harmful bacteria and maintain product freshness. Lactic acid is not used in its natural, raw state but is instead utilised in a purified, food-grade form to ensure safety and effective absorption.

Manufacturer Benefits

Lactic acid is included as a preservative to inhibit microbial growth and extend the product’s shelf life. It may also be used to enhance palatability by providing a mildly tangy flavour that appeals to pets.

Soybean Oil
Soybean Oil

Glycine Max Oil, E322, Soya Oil, Soya Bean Oil

Summary

Soybean oil is a plant-derived oil extracted from the seeds of the soybean (Glycine max). It serves as a concentrated source of energy and provides essential fatty acids, particularly linoleic acid, which supports skin and coat health in pets. Soybean oil is utilised in its refined liquid form, not as whole soybeans, to optimise digestibility and nutrient availability in pet food formulations.

Manufacturer Benefits

Soybean oil is included as a cost-effective source of fat and essential fatty acids, supporting energy density and skin and coat health in pet food. It also contributes to product texture and palatability while helping to optimise manufacturing costs.

Potassium Chloride
Potassium Chloride

E508, Muriate of Potash, Potassium Monochloride, KCl

Summary

Potassium chloride is a mineral compound derived from the element potassium, typically sourced from naturally occurring mineral deposits. It is utilised in pet food as a purified salt rather than in its raw metallic form, ensuring safety and optimal absorption. Its primary purpose is to provide essential potassium, which supports nerve function, muscle contraction, and fluid balance in companion animals.

Manufacturer Benefits

Potassium chloride is included as a cost-effective mineral supplement to help meet pets’ dietary potassium requirements. It also functions as a salt substitute to optimise electrolyte balance in the formulation.

Dried Beet Pulp
Dried Beet Pulp

Beet Fibre, Beet Fiber, Beta Vulgaris Pulp, Beta Vulgaris Fibre

Summary

Dried beet pulp is a fibrous by-product derived from sugar beet plants after sugar extraction. As a plant-based ingredient, it serves primarily as a source of fermentable fibre, supporting digestive health and stool quality in pets. Dried beet pulp is used in its processed, dried form rather than as fresh beet, optimising its digestibility and functional benefits in pet food formulations.

Manufacturer Benefits

Dried beet pulp is included as a cost-effective source of dietary fibre to promote digestive health and stool quality in pets. It also serves as a bulk-adding agent, helping to optimise the texture and consistency of the final product.

Glycerol Monostearate
Glycerol Monostearate

Monostearin, Glyceryl Stearate, E471, 1-Monostearoyl Glycerol

Summary

Glycerol monostearate is a compound derived from the esterification of glycerol (a plant or animal-based alcohol) and stearic acid (a fatty acid). It serves primarily as an emulsifier, helping to blend fats and water in pet food for improved texture and stability. Glycerol monostearate is not used in its natural raw form but is specifically utilised as a processed compound to optimise safety and functionality.

Manufacturer Benefits

Glycerol monostearate is included as an emulsifier to improve texture and maintain the stability of fats within the pet food, preventing separation during processing and storage. It may also contribute to extending shelf life by helping to retain moisture and inhibit staleness.

Calcium Carbonate
Calcium Carbonate

Chalk, Limestone, E170, Marble Dust

Summary

Calcium carbonate is a naturally occurring mineral compound derived from sources such as limestone or marine shells. It is primarily included in pet food as a source of calcium, essential for healthy bones, teeth, and metabolic functions. Calcium carbonate is not used in its raw mineral state; instead, it is processed into a purified, food-grade compound to optimise safety and bioavailability for pets.

Manufacturer Benefits

Calcium carbonate is included as a cost-effective mineral supplement to provide a bioavailable source of calcium, supporting bone health and proper nutritional balance. It also functions as a pH stabiliser, contributing to product consistency and shelf stability.

Methionine
Methionine

L-Methionine, 2-Amino-4-(Methylthio)butyric Acid, E620, L-2-Amino-4-(Methylthio)butyric Acid

Summary

Methionine is an essential amino acid derived from animal or plant sources, crucial for protein synthesis and overall metabolic health in pets. It primarily supports healthy skin, coat, and liver function. Methionine is not used in its raw elemental form; instead, it is incorporated as a specific compound, such as DL-methionine, to optimise safety, stability, and bioavailability in pet food formulations.

Manufacturer Benefits

Methionine is included as an essential amino acid to support protein synthesis and overall health in pets, particularly when animal protein sources are limited or variable. It also serves as a cost-effective way to meet nutritional requirements and optimise the amino acid profile of the final product.

Vitamin E
Vitamin E

Tocopherol, Alpha-Tocopherol, E307, D-Alpha-Tocopherol

Summary

Vitamin E is a fat-soluble vitamin derived from plant sources such as vegetable oils, nuts, and seeds. It functions primarily as an antioxidant, helping to protect cell membranes from oxidative damage and supporting immune health. In pet food, Vitamin E is not used in its natural raw form but is typically utilised as a stabilised compound, such as tocopherol acetate, to optimise safety and absorption.

Manufacturer Benefits

Vitamin E is included as a natural antioxidant to help preserve the freshness and stability of fats and oils in the product, thereby extending shelf life. It also serves as a label-friendly nutrient that appeals to consumers seeking added health benefits for their pets.

Ascorbyl Polyphosphate
Ascorbyl Polyphosphate

L-Ascorbyl Polyphosphate, Ascorbic Acid Polyphosphate, Polyphosphate Ester of Ascorbic Acid, E304

Summary

Ascorbyl polyphosphate is a synthesised compound derived from vitamin C (ascorbic acid), typically of plant origin. It serves as a stable source of vitamin C, supporting immune function and acting as an antioxidant in pet food. Ascorbyl polyphosphate is not used in its natural form; instead, it is utilised as a phosphate-bound compound to optimise stability and bioavailability.

Manufacturer Benefits

Ascorbyl polyphosphate is included as a stable, cost-effective source of vitamin C that resists degradation during processing and storage. Its use helps manufacturers ensure consistent nutrient labelling and extend the shelf life of the finished product.

Niacin
Niacin

Nicotinic Acid, Vitamin B3, Pyridine-3-Carboxylic Acid, E375

Summary

Niacin, also known as vitamin B3, is a water-soluble vitamin of synthetic or natural origin, commonly derived from plant or animal sources. It plays a crucial role in energy metabolism and supports healthy skin, nerves, and digestion in pets. Niacin is not used in its raw form but is typically included as a safe, bioavailable compound such as niacinamide or nicotinic acid.

Manufacturer Benefits

Niacin is included as an essential B vitamin to meet nutritional requirements and support metabolic health in pets. Its addition ensures compliance with regulatory standards for complete and balanced pet food labelling.

Thiamine Mononitrate
Thiamine Mononitrate

Vitamin B1 Mononitrate, Nitrate Salt of Thiamine, E101a, Thiamin Mononitrate

Summary

Thiamine mononitrate is a synthetic, water-soluble form of vitamin B1, derived from chemical synthesis rather than natural sources. It is added to pet food to support energy metabolism and proper nervous system function. Thiamine is not used in its natural state; instead, the mononitrate compound is utilised for stability, safety, and optimal absorption in formulated diets.

Manufacturer Benefits

Thiamine mononitrate is included as a stable, cost-effective source of vitamin B1 to meet nutritional requirements and ensure product labelling compliance. Its synthetic form maintains potency during processing and storage, supporting both product stability and regulatory standards.

Vitamin A
Vitamin A

Retinol, Retinyl Palmitate, Retinyl Acetate, E160a

Summary

Vitamin A is an essential fat-soluble nutrient derived from animal sources (as retinyl esters) or plant sources (as carotenoids). It supports vision, immune function, and skin health in pets. In pet food, Vitamin A is not used in its raw or natural state but is provided as stabilised compounds (such as retinyl acetate or retinyl palmitate) to ensure safety, stability, and optimal absorption.

Manufacturer Benefits

Vitamin A is included as an essential nutrient to support vision, immune function, and overall health in pets, ensuring the product meets established nutritional standards. Its addition also allows manufacturers to optimise the nutritional profile and comply with regulatory labelling requirements.

Calcium Pantothenate
Calcium Pantothenate

D-Calcium Pantothenate, E315, Pantothenic Acid Calcium Salt, Calcium D-Pantothenate

Summary

Calcium pantothenate is a synthetic compound derived from pantothenic acid, a water-soluble B vitamin (vitamin B5) of plant or animal origin. It is primarily included in pet food to support energy metabolism and maintain healthy skin and coat. Rather than using pantothenic acid in its natural form, calcium pantothenate is utilised for its stability, safety, and enhanced bioavailability in pet nutrition.

Manufacturer Benefits

Calcium pantothenate is included as a stable, bioavailable source of vitamin B5 to meet nutritional requirements and support labelling claims of complete and balanced nutrition. Its use ensures consistent vitamin content throughout the product’s shelf life.

Pyridoxine Hydrochloride
Pyridoxine Hydrochloride

Vitamin B6, E300, Pyridoxine HCl, Pyridoxine Monohydrochloride

Summary

Pyridoxine hydrochloride is a synthetic, water-soluble form of vitamin B6, derived from chemical synthesis rather than natural sources. It is added to pet foods to support protein metabolism, nervous system health, and immune function. Unlike naturally occurring vitamin B6 in foods, pyridoxine is utilised in its hydrochloride salt form to ensure stability, safety, and optimal absorption in companion animals.

Manufacturer Benefits

Pyridoxine hydrochloride is included as a cost-effective, stable source of vitamin B6 to ensure nutritional adequacy and meet regulatory labelling requirements. Its addition helps manufacturers guarantee consistent vitamin content throughout the product’s shelf life.

Biotin
Biotin

Vitamin B7, Vitamin H, D-Biotin, Coenzyme R

Summary

Biotin is a water-soluble B-vitamin (vitamin B7) of synthetic origin, commonly included in pet foods to support healthy skin, coat, and metabolic function. Its primary benefit is aiding in the metabolism of fats, proteins, and carbohydrates. Biotin is not used in its natural, free form but is instead utilised as a stable, bioavailable compound to optimise absorption and efficacy in pets.

Manufacturer Benefits

Biotin is included as an essential vitamin to support skin, coat, and metabolic health in pets, fulfilling nutritional requirements for complete and balanced diets. Its addition also allows manufacturers to highlight the inclusion of key micronutrients on product labelling, appealing to health-conscious consumers.

Vitamin B12
Vitamin B12

Cobalamin, Cyanocobalamin, Hydroxocobalamin, Methylcobalamin

Summary

Vitamin B12 is a water-soluble vitamin of animal origin, essential for nerve function and red blood cell formation in pets. It is primarily included in pet food to support energy metabolism and overall vitality. Vitamin B12 is not used in its natural, raw form but is instead utilised as a specific compound, such as cyanocobalamin, to ensure stability, safety, and optimal absorption.

Manufacturer Benefits

Vitamin B12 is included as an essential nutrient to support metabolic and neurological functions in pets, ensuring the product meets established nutritional standards. Its addition helps manufacturers achieve complete and balanced labelling claims.

Riboflavin
Riboflavin

Vitamin B2, E101, Lactoflavin, 7,8-Dimethyl-10-Ribityl Isoalloxazine

Summary

Riboflavin, also known as vitamin B2, is a water-soluble vitamin of synthetic origin commonly added to pet foods. It plays a crucial role in energy metabolism and supports healthy skin, eyes, and nervous system function. Riboflavin is not used in its natural form but is typically utilised as a synthesised compound to ensure stability, safety, and optimal absorption in pet diets.

Manufacturer Benefits

Riboflavin is included as an essential vitamin to meet nutritional requirements and ensure regulatory compliance for complete and balanced pet food labelling. Its addition helps optimise the product’s nutrient profile without significantly impacting cost or palatability.

Folic Acid
Folic Acid

Pteroylmonoglutamic Acid, Pteroylglutamic Acid, Vitamin B9, E920

Summary

Folic acid is a synthetic form of vitamin B9, originally derived from plant sources but produced for pet food as a stable, bioavailable compound. Its primary purpose is to support cell division, DNA synthesis, and overall growth in pets. Folic acid is not used in its natural state; instead, it is utilised as a manufactured supplement to optimise absorption and efficacy.

Manufacturer Benefits

Folic acid is included as a synthetic vitamin to ensure nutritional adequacy and meet regulatory requirements for B-vitamin content in pet food. Its addition helps standardise nutrient levels across batches, supporting consistent product labelling and animal health.

Vitamin D3
Vitamin D3

Cholecalciferol, Colecalciferol, Calciol, E671

Summary

Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin of animal origin commonly derived from lanolin or fish oil. It plays a crucial role in regulating calcium and phosphorus metabolism, supporting healthy bone development in pets. Vitamin D3 is not used in its natural form but is instead utilised as a stabilised compound to ensure safety, efficacy, and optimal absorption in pet food formulations.

Manufacturer Benefits

Vitamin D3 is included to ensure the finished product meets established nutritional requirements for canine health, supporting bone development and calcium regulation. Its addition allows manufacturers to guarantee consistent vitamin content regardless of natural variation in raw materials.

Menadione Sodium Bisulphite Complex
Menadione Sodium Bisulphite Complex

Vitamin K3, Menadione Sodium Bisulphite, MSBC, E223

Summary

Menadione Sodium Bisulphite Complex is a synthetic compound derived from vitamin K, specifically used as a source of vitamin K3 in pet foods. Its primary purpose is to support normal blood clotting and bone health. Unlike natural vitamin K found in plants or animal tissues, this ingredient is not used in its raw form but is utilised as a stable, water-soluble compound to optimise absorption and safety.

Manufacturer Benefits

Menadione Sodium Bisulphite Complex is included as a cost-effective, stable source of synthetic vitamin K to ensure consistent nutrient levels in the final product. Its use helps manufacturers meet nutritional requirements without relying on less stable or more expensive natural alternatives.

Fish Oil
Fish Oil

Fish Liver Oil, Oleum Piscis, Oleum Jecoris, Oleum Piscarium

Summary

Fish oil is a nutrient-rich oil derived from the tissues of oily fish, making it an animal-based ingredient. It is primarily included in pet food for its high content of omega-3 fatty acids, which support skin, coat, and joint health. Fish oil is utilised in a purified, liquid form rather than as whole fish, ensuring optimal absorption and safety for pets.

Manufacturer Benefits

Fish oil is included as a source of omega-3 fatty acids to support skin, coat, and joint health, enhancing the nutritional profile of the product. Its presence also serves as a marketing point, appealing to consumers seeking functional health benefits for their pets.

Choline Chloride
Choline Chloride

Trimethylethanolamine Chloride, Choline Monochloride, E1001, 2-Hydroxy-N,N,N-Trimethylethanaminium Chloride

Summary

Choline chloride is a synthetic compound derived from choline, an essential nutrient typically sourced from plant or animal origins. It is primarily included in pet food to support healthy brain function, liver metabolism, and cellular structure. Choline is not used in its natural state; instead, it is utilised as choline chloride to ensure stability, safety, and optimal absorption in pet diets.

Manufacturer Benefits

Choline chloride is included as an essential nutrient to support normal liver function and brain health in pets. It is a cost-effective way to meet regulatory requirements for choline content in complete and balanced pet foods.

Iodised Salt
Iodised Salt

Iodized Salt, Iodate Salt, Iodised Sodium Chloride, Iodised Table Salt

Summary

Iodised salt is a mineral-based ingredient produced by adding iodine, an essential trace element, to refined table salt. Sourced from mineral deposits, its primary purpose is to provide dietary sodium and ensure adequate iodine intake, supporting thyroid function and metabolic health. Iodised salt is not used in its natural raw form; instead, it is utilised as a fortified compound to optimise safety and bioavailability.

Manufacturer Benefits

Iodised salt is included as a cost-effective source of essential sodium and iodine, supporting pet health and meeting nutritional requirements. It also acts as a flavour enhancer to improve palatability.

Lysine
Lysine

L-Lysine, 2,6-Diaminohexanoic Acid, E640, L-2,6-Diaminohexanoic Acid

Summary

Lysine is an essential amino acid derived from animal or plant protein sources. It plays a critical role in protein synthesis, supporting muscle development and immune function in pets. Lysine cannot be produced by the body and must be supplied through the diet. It is not used in its raw form but is typically included as a purified amino acid to optimise bioavailability and nutritional balance.

Manufacturer Benefits

Lysine is included as an essential amino acid to ensure the pet food meets the complete nutritional requirements for dogs, supporting healthy growth and maintenance. Its addition allows manufacturers to optimise protein quality, especially when using plant-based or mixed protein sources.

Arginine
Arginine

L-Arginine, E924, 2-Amino-5-Guanidinopentanoic Acid, (S)-2-Amino-5-Guanidinopentanoic Acid

Summary

Arginine is an essential amino acid derived from animal and plant protein sources. It plays a critical role in protein synthesis and supports healthy immune and cardiovascular function in pets. In pet food, arginine is included to meet dietary requirements, particularly for cats. It is not used in its raw, isolated form but is incorporated as part of protein ingredients or as a purified amino acid supplement for optimal absorption.

Manufacturer Benefits

Arginine is included as an essential amino acid to support protein synthesis and overall health in dogs, as they cannot produce sufficient amounts endogenously. Its addition ensures nutritional adequacy and compliance with established pet food nutrient profiles.

Taurine
Taurine

2-Aminoethanesulphonic Acid, L-Taurine, E107, 2-Aminoethane-1-Sulphonic Acid

Summary

Taurine is a naturally occurring amino sulfonic acid derived from animal sources, particularly meat and fish. It is added to pet food to support cardiovascular health, vision, and proper immune function, especially in cats who cannot synthesise it sufficiently. Taurine is not used in its raw form; instead, it is incorporated as a purified, synthesised compound to ensure stability, safety, and optimal absorption.

Manufacturer Benefits

Taurine is included to ensure adequate levels of this essential amino acid, particularly in diets where animal protein content may be insufficient to meet canine or feline nutritional requirements. Its addition supports cardiovascular health and is often used to address consumer concerns about diet-associated heart issues.

Zinc Oxide
Zinc Oxide

Zinc White, CI 77947, Calamine, Chinese White

Summary

Zinc oxide is an inorganic compound derived from the mineral zinc, commonly used in pet food as a supplemental source of the essential trace mineral zinc. Its primary benefit is to support immune function, skin health, and enzyme activity. Zinc is not used in its natural metallic state; instead, it is utilised as zinc oxide to optimise safety, stability, and bioavailability in pet nutrition.

Manufacturer Benefits

Zinc oxide is included as a cost-effective and stable source of essential zinc, supporting nutritional adequacy in pet food formulations. Its use ensures compliance with regulatory requirements for trace minerals while maintaining product shelf stability.

Manganous Oxide
Manganous Oxide

Manganese(II) Oxide, Manganese Monoxide, E172, Manganese Oxide

Summary

Manganous oxide is an inorganic compound derived from the mineral form of manganese, an essential trace element. It is included in pet food primarily as a source of manganese, which supports bone development, metabolism, and antioxidant function. Manganous oxide is not used in its natural metallic state; instead, it is utilised as a safe, bioavailable compound to optimise absorption and nutritional benefit.

Manufacturer Benefits

Manganous oxide is included as a cost-effective source of manganese, an essential trace mineral that supports metabolic and skeletal functions in pets. Its stable form allows for consistent nutrient delivery throughout the product’s shelf life.

Calcium Iodate
Calcium Iodate

Calcium Diiodate, E917, Ca(IO3)2, Calcium Iodate Anhydrous

Summary

Calcium iodate is a mineral-derived compound commonly included in pet foods as a source of iodine, an essential trace element. It is not used in its natural, raw mineral state; instead, it is utilised in the form of a stable, food-grade compound to ensure safety and optimal absorption. Its primary purpose is to support healthy thyroid function and metabolic processes.

Manufacturer Benefits

Calcium iodate is included as a stable, bioavailable source of iodine to support thyroid function and overall metabolic health in pets. Its use ensures consistent iodine content throughout the product, optimising nutritional labelling and regulatory compliance.

Sodium Selenite
Sodium Selenite

Disodium Selenite, E901, Selenious Acid Disodium Salt, Disodium Selenious Acid

Summary

Sodium selenite is an inorganic compound derived from selenium, an essential trace mineral. It is included in pet food formulations to provide a bioavailable source of selenium, which supports antioxidant defence and immune function. Sodium selenite is not used in its natural elemental form; instead, it is utilised as a salt compound to ensure safety, stability, and optimal absorption in pets.

Manufacturer Benefits

Sodium selenite is included as a cost-effective and stable source of the essential trace mineral selenium, which supports normal metabolic and immune functions in pets. Its use allows manufacturers to meet nutritional requirements efficiently and with consistent quality.

Tryptophan
Tryptophan

L-Tryptophan, L-α-Aminoindole-3-Propionic Acid, 2-Amino-3-(Indol-3-yl)Propanoic Acid, EAA 10

Summary

Tryptophan is an essential amino acid derived from animal or plant protein sources. It plays a crucial role in pet nutrition by supporting protein synthesis and serving as a precursor for serotonin, which influences mood and behaviour. Tryptophan is not used in its isolated, natural form but is instead incorporated as a purified amino acid to optimise dietary balance and bioavailability in pet food formulations.

Manufacturer Benefits

Tryptophan is included as an essential amino acid to support complete and balanced nutrition, meeting regulatory requirements for canine dietary adequacy. Its addition ensures the product can be marketed as providing all necessary amino acids for dogs’ health.

Carnitine
Carnitine

L-Carnitine, Levocarnitine, Vitamin Bt, E306

Summary

Carnitine is a naturally occurring compound derived from animal sources, primarily meat and fish. It plays a crucial role in energy metabolism by transporting fatty acids into the mitochondria for cellular energy production. In pet food, carnitine is utilised in a synthesised, bioavailable form rather than its raw state, ensuring optimal absorption and safety for companion animals.

Manufacturer Benefits

Carnitine is included as a functional ingredient to support fat metabolism and energy production, particularly in formulas targeting active or senior pets. Its addition allows manufacturers to market the product as supporting heart health and weight management.

Mixed Tocopherols
Mixed Tocopherols

Tocopherols, E306, Natural Tocopherols Concentrate, D-Alpha Tocopherol Concentrate

Summary

Mixed tocopherols are a blend of compounds derived from plant oils, primarily functioning as a source of vitamin E. Their main purpose in pet food is to act as natural antioxidants, helping to preserve the freshness of fats and oils. Rather than being used in their isolated, pure form, mixed tocopherols are incorporated as stabilised extracts to optimise safety, efficacy, and nutrient retention.

Manufacturer Benefits

Mixed tocopherols are included as a natural preservative to extend shelf life by slowing the oxidation of fats and oils in pet food. They are often used as a label-friendly alternative to synthetic preservatives to appeal to consumer preferences for natural ingredients.

Natural Flavour
Natural Flavour

Natural Flavouring, Flavouring Substance, Flavouring Preparation, Flavouring Complex

Summary

Natural flavour is a food additive derived from animal or plant sources, designed to enhance the palatability of pet food. Its primary purpose is to improve taste and encourage consistent consumption. Rather than being used in its original raw form, natural flavour is typically processed and concentrated to ensure safety, stability, and uniformity in pet food formulations, while maintaining its natural origin.

Manufacturer Benefits

Natural flavour is included to enhance palatability, encouraging pets to consume the product. It also allows manufacturers to improve taste without specifying individual flavouring agents, supporting flexible formulation and label-friendly marketing.

Beta Carotene
Beta Carotene

Provitamin A, E160a, All-Trans-Beta-Carotene, CI 40800

Summary

Beta carotene is a plant-derived pigment and precursor to vitamin A, commonly sourced from carrots and other colourful vegetables. Its primary nutritional benefit is supporting vision, immune function, and antioxidant defence. In pet food, beta carotene is utilised in its extracted or purified form rather than as whole vegetables, ensuring consistent potency and bioavailability for optimal health outcomes.

Manufacturer Benefits

Beta carotene is included as a natural source of vitamin A and as a colour-enhancing agent to improve the visual appeal of the product. Its presence also allows for label-friendly marketing, appealing to consumers seeking natural additives.

Score Card

Every product is assessed using the Dog Directory Integrity Framework, giving dog owners a clear and trustworthy way to compare products. This ensures each review reflects overall quality and formulation integrity, not just marketing claims.

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  • Overall Score
    Score Info

    As a pet owner, you naturally want the best for your dog. From regular vet visits to nutritious meals, ensuring your furry friend is healthy and happy is always top of mind. But beyond food and exercise, supplements are becoming an increasingly popular way to support your dog’s overall well-being. In this comprehensive guide, we’ll dive into the world of dog supplements, explaining what they are, why they matter, and how to choose the right ones for your pup.

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ABOUT


Parent Company
Colgate Palmolive
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Manufactured
United States
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Category
Food
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Life Stage
Adult, Senior
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Breed Size
All Breeds
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Feeding Type
Complete Meal
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Processing Level
High
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PRODUCT TAGS


Gluten Free
Dairy Free

Built for owners who want cheaper products, better weekends and quality recommendations!

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Price Comparison

7.9kg

About the Brand

Hills Prescription Diet

Hill's Prescription Diet is a veterinary-therapeutic food line from Hill's Pet Nutrition, originating in 1948. Formulas are designed to nutritionally manage specific clinical conditions such as kidney disease, allergies, and diabetes.


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Built for owners who want cheaper products, better weekends and quality recommendations!

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