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NRC Nutritional Requirements for Adult Cats

Estimated reading time: 5 min

Adult cats can regulate vitamins and nutrients, and their diet can achieve balance over time or daily. Prey Model Raw (PMR) diets provide guidelines on items to include in a raw diet to provide essential nutrients and recommended calories for optimal health.

nutritional requirements for adult cat maintenance

Macronutrients for Adult Cats

Macronutrients are the first piece in nutrition where they are necessary for optimal health. There are three primaryΒ macronutrients which include protein, lipids (fats), and carbohydrates.Β Each macronutrient is in nearly all foods and supply calories for energy.

Recommended Daily Allowances for Macronutrients

Macronutrients are a class of chemical compounds which are consumed in large quantities and provide the bulk of energy within the diet.

Proteins are large complex molecules composed of amino acids and are the main structural component of body tissue. Adult cats do not have a nutritional requirement for protein because the body can synthesize new proteins with amino acids and nitrogen. However, adult cats have specific requirements for amino acids, carbon skeletons, and nitrogen.

Protein supplied in food provides essential amino acids, carbon skeletons, and nitrogen to fulfill nutritional requirements. The primary role of protein is to supply amino acids for muscle and organ protein synthesis, the creation of enzymes, the creation of hormones, and energy.

Nutritional Research Council (NRC) provides the following protein recommendations for adult cats 12 months and older per 1000kcal consumed:

Minimum: 40g
Recommended Allowance: 50g

Data Source:
National Research Council.Β Nutrient Requirements of Dogs and Cats. National Academies Press, 2007.

Fat provides nutritional compounds to supply adult cats with energy, essential fatty acids (EFAs), and is a vehicle for nutrient absorption and transportation. Fat is the primary source of energy for dogs and providing a raw diet with sufficient amounts of fat is important to optimal health.

Nutritional Research Council (NRC) provides the following fat recommendations for adult cats 12 months and older per 1000kcal consumed:

Minimum: 22.5g
Recommended Allowance: 22.5g

Data Source:
National Research Council.Β Nutrient Requirements of Dogs and Cats. National Academies Press, 2007.

Water accounts for a large portion of the total amount of food ingested in a normal raw diet. Water does not provide any nutritional value. However, water is an essential nutrient necessary for optimal feline health and nutrition.

Micronutrients for Adult Cats

Additionally, kittens have different micronutrient requirements in comparison to adult cats. Kittens have higher requirements for amino acids, fats, vitamins, and minerals in comparison to adult cats. Therefore, there must be a supply of these nutrients in sufficient amounts in the diet.

Recommended Daily Allowances for Essential Nutrients

Nutritional Research Council (NRC) provides the following Recommended Allowances (RA) for adult cats 12 months and older per 1000kcal consumed:

Nutrient RA Minimum Maximum
Arginine 1.9 g 1.9 g
Histidine 0.7 g 0.7 g
Isoleucine 1.1 g 1.1 g
Leucine 2.6 g 2.6 g
Lysine 0.9 g 0.7 g
Methionine 0.4 g 0.3 g
Methionine + Cystine 0.9 g 0.7 g
Phenylalanine 1.0 g 1.0 g
Phenylalanine + Tyrosine 3.8 g 3.8 g
Threonine 1.3 g 1.3 g
Tryptophan 0.3 g 0.3 g
Taurine 0.1 g 0.1 g

Data Source:
National Research Council.Β Nutrient Requirements of Dogs and Cats. National Academies Press, 2007.

Nutrients RA Minimum Maximum
Linoleic Acid 1.4 g 1.4 g 13.8 g
Ξ±-Linolenic Acid
Eicosapentaenoic + Docosahexaenoic Acid (EPA/DHA) 0.025 g

Data Source:
National Research Council.Β Nutrient Requirements of Dogs and Cats. National Academies Press, 2007.

Nutrient RA Minimum Maximum
Vitamin A 250 mcg 250 mcg 25,000 RE*
Vitamin D 1.8 mcg 1.8 mcg
Vitamin E 10 mg 10 mg

* Vitamin A: 1 IU is the biological equivalent of 0.3 micrograms (mcg) retinol

Data Source:
National Research Council.Β Nutrient Requirements of Dogs and Cats. National Academies Press, 2007.

Nutrient RA Minimum Maximum
Vitamin B1 (Thiamine) 1.4 mg 1.4 mg
Vitamin B2 (Riboflavin) 1.0 mg 1.0 mg
Vitamin B3 (Niacin) 10 mg 10 mg
Vitamin B5 (Pantothenic Acid) 1.4 mg 1.2 mg
Vitamin B6 (Pyridoxine) 0.6 mg 0.5 mg
Vitamin B9 (Folate & Folic acid) 188 mcg 150 mcg
Vitamin B12 (Cobalamin) 5.6 mcg 5.6 mcg
Biotin 18.8 mcg 18.8 mcg
Choline 637 mg 510 mg
Nutrient RA Minimum Maximum
Calcium 0.7 g 0.4 g
Phosphorus 0.6 g 0.4 g
Magnesium 100 mg 50 mg
Sodium 170 g 160 g
Potassium 1.3 g 1.3 g
Chloride 240 mg 240 mg

Data Source:
National Research Council.Β Nutrient Requirements of Dogs and Cats. National Academies Press, 2007.

Nutrient RA Minimum Maximum
Iron 20 mg 20 mg
Copper 1.2 mg 1.2 mg
Zinc 18.5 mg 18.5 mg
Manganese 1.2 mg 1.2 mg
Selenium 75 mcg 75 mcg
Iodine 450 mcg 320 mcg

Data Source:
National Research Council.Β Nutrient Requirements of Dogs and Cats. National Academies Press, 2007.

When combining recommended allowances for essential nutrients with raw feeding ratio guidelines, a balanced raw diet using whole foods can be achieved to supply an adult cat with the appropriate nutrition to support optimal feline health and nutrition.

Raw Feeding Ratio Guidelines

A raw diet is divided into percentages, known as ratio guidelines, to provide an estimate on how much of each ingredient is needed. Ratios fromΒ PMR diets are guidelines for the amount of muscle meat, raw meaty bones, and organs, to include in a raw diet for an adult cat.

Similar to maintenance percentages, raw diet ratios are to be used as a guideline when selecting ingredients and creating a raw diet. Once maintenance percentages are calculated, ratio guidelines can be determined.

Example 1

Adult cat profile in english units:

6 Years Old

Low Activity

8 Pounds

Ideal Body Weight

300 Daily Calories

5oz Intake

Estimated Daily Intake

Calculate ratio guidelines in english units:

PMR Ratios

5 x 0.84 = 4.2oz muscle meat
5 x 0.06 = 0.3oz edible bone
5 x 0.05 = 0.25oz liver
5 x 0.05 = 0.25oz other organ

Example 2

Adult cat profile in metric units:

6 Years Old

Low Activity

3.6 Kilograms

Ideal Body Weight

300 Daily Calories

142g Intake

Estimated Daily Intake

Calculate ratio guidelines in metric units:

PMR Ratios

142 x 0.84 = 119g muscle meat
142 x 0.06 = 9g edible bone
142 x 0.05 = 7g liver
142 x 0.05 = 7g other organ

Adapting Ratio Guidelines into a Balanced Diet

Ratio calculations provide a guideline on ingredients to include in a raw diet.Β Each ingredient provides essential nutrients to use when formulating a balanced raw diet for adult cats.

Muscle Meat

The muscle meat portion of raw ratios assists in supplying protein, amino acids, fats, vitamins (water soluble B vitamins), and some minerals.

Raw Meaty Bones

The main role of the edible bone ratio is to supply calcium within a raw diet. Raw meaty bones provide muscle meat and edible bone which assists in supplying protein, amino acids, fats, and minerals (calcium and phosphorus).

Liver & Secreting Organs

The liver and other organ ratios assists in supplying protein, amino acids, vitamins (vitamin A and B vitamins), and minerals (iron and copper).

CLOSING COMMENTS

Adult cats can regulate nutrients, and their diet can achieve balance over time or daily. The diet must provide recommended allowances for essential nutrients to maintain optimal health.

Macronutrients

Macronutrients consist of protein, fat, and carbohydrates to provide calories for energy.

Micronutrients

Amino acids, fatty acids, vitamins, and minerals are all essential nutrients necessary for optimal health.

Raw Diet Ratios

The ratios for muscle meat, raw edible bone, and organs provide a guide on which ingredients to select to include in a raw diet for adult cats.

Raw diet ratios provide guidance on which ingredients and their amounts to use when formulating an adult cat. However, it is important to note these are starting guidelines, these are not β€œrules,” and adjustments should be made to complete recommended allowances for essential macro and micronutrients.