Pet food definition, according to categories

In this era in which dogs and cats form part of the family as much as children, with such a strong trend, we must be responsible for meeting all their needs, including the quality of the food we offer them. Food is fundamental because pets eat every day and incorporate all the formula ingredients into their organism. But nowadays diet comes to fulfill more than just a nutritional function to cover the requirements.

Diet is a fundamental part of health, life quality, and slowing down physiological processes such as aging, prevention, and even treatment of multiple illnesses. And even though nowadays we have plenty of information on the nutritional requirements of pet animals, it is difficult to reach a consensus.

In this article, we discuss some concepts based on my analysis study and experience with my patients, considering that dogs and cats are carnivorous and, as such, require a greater supply of protein and ingredients of animal origin in most of their stages and states.

Food categories

Depending on their degree of processing: We will have ultra-processed foods (UP = dry or canned food or any other food intended for consumption by pets that is manufactured by carrying out a thermal or pressure processing step) or minimally processed (MP = fresh, frozen or any other food intended for consumption by pets, manufactured without thermal or pressure processing or one of them).
By the % of water, we can divide them into dry (8-12% water), semi-humid (15-30% water), and humid (around 70% water).
Depending on their function: complete foods (which cover a pet's whole nutritional needs) or supplements (for example, snacks or treats).
Depending on its manufacturing type: they can be commercial or homemade foods (cooked, BARF, or raw).
Depending on their age: Puppies (age will depend on animal size, up to 12-16-24 months) mainly focused on learning, immunity, development, and growth. Adults (from 12-16-24 months to 6-7 years of age), depending on animal size, whose main objective is balance and maintenance.Gerontes (+ 6-7), who seek a quality of life, promoting health by slowing down aging and the appearance of typical age-related diseases (kidney, heart, joint care, intestinal balance, nervous system health, etc.).
Natural foods: They lack artificial colorings, flavors, and antioxidants while having a lower degree of processing. This represents a better life quality, greater digestibility, and use of certain nutrients.
Functional foods: They include the so-called nutraceuticals or functional ingredients in their formula, which exert different functions or purposes in the body, such as joint protectors, immunomodulators, probiotics, antioxidants, anti-inflammatories, etc. These give the food added value beyond what is strictly nutritional.
According to its quality: Ultra-premium, super-premium +, low super-premium or super-premium, premium, standard, or Economy. To enter a category, a food must meet most of its characteristics (beyond what a label says).

Ultra-premium or super-premium +

Purchased at veterinarians or pet stores
Foods with high-quality ingredients
High nutritional density and greater digestibility
Extensive portfolio that answers pet needs at different stages, sizes, and special requirements.
With the greatest nutritional innovations on the market (functional ingredients +++)
Size differential with kibble differential (in size and composition)
Less fecal matter production
Very digestible elements (a higher proportion of ingredients of animal origin and in the first orders)
Greater benefits for the individual, such as shinier hair, more vitality, and better health
Minimum digestibility of 80-90%
Average protein and fat: 35-40/15-17, respectively
Minimum animal protein of 70%
Nutrient range with the highest industry standard
Smaller portions needed
No artificial colors, flavors, or preservatives
High technology to take advantage of all ingredients' biological value

Super-premium
Found at veterinarians or pet stores
High-quality ingredients
High nutritional density and digestibility
Extensive portfolio that answers pet needs at different stages, sizes, and special requirements
Nutritional innovation (functional ingredients)
Size differential with kibble differential (in size and composition)
Less fecal matter production
Greater benefits for the individual, such as shinier hair, more vitality, and better health
Very digestible elements (large amounts of ingredients of animal origin)
Minimum digestibility of 80%
Average protein and fat of 30-40/14-16, respectively.
Minimum animal protein of 60%
High industry standard nutrient range
Smaller portions needed
No artificial colors or flavors

Premium
May contain artificial colors and flavors
More fat and calories
Made with animal or vegetable flour
A mix of flavors, variety, and croquette shapes.
Ingredients that protect joints, improve intestinal health and facilitate digestion
Digestibility of 70-80%
Average protein and fat of 24-34/10-15, respectively
Animal protein is close to 40-50%
Usually have an average price

Standard - mainstream
Low density (provided by proteins and fats)
Low fat and protein content
Digestibility less than 75%
Target of consumers concerned about the price
Protein source mixture of meat meal and other non-animal sources
Low-quality ingredients
Smaller portfolio (no size differentials, sometimes even stages, no special care products)
Artificial colors, flavors, and preservatives
Average protein and fat of 20-30/10-12, respectively
Animal protein <40%

Economical
Low density (provided by proteins and fats)
The lowest fat and protein content on the market
Digestibility is less than 60%
Target of consumers concerned about the price
Protein source is a mixture of meat meal and bone powder
Lower quality ingredients
Smaller portfolio (no size differentials, sometimes even stages, no special care products)
Artificial colors, flavors, and preservatives
Average protein and fat of 20-27/8-10, respectively
Animal protein <30%
Poorly digestible fibers

9. Therapeutic: These are foods intended for a specific stage of an animal or need. They can be temporary or permanent, aimed at preventing, helping, or treating a specific disease. They are another clinical tool, a therapeutic one, sometimes the main one of a treatment (DIETOTHERAPY).

Although there is no specific legislation, we must consider the digestibility, type of meat or meat flour, differential of kibbles or sizes, portfolio, colorant presence, antioxidants, or palatability as important aspects when selecting the appropriate product for a pet's needs.

Product price, in general, is determined by the ingredients used (which are or should be organized in descending order), energy density, protein quantity and quality, and nutraceutical addition.

We must be able to guarantee complete food that covers the requirements of an animal according to their needs, stage and size, digestibility (maximum nutrient use), good energy intake (3000-5000 Kcal), palatability, and safety.

By: Dr. Bonaura M. Candela.
Source: All Pet Food Magazine.

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About author

Candela Bonaura

Candela is a Veterinary Medical Doctor, ex CONICET researcher, Research Analyst and Scientific Communication, FCV-UNLP Professor in different subjects such as General Pathology, Small Animal Clinic, Electron Microscopy Service, Pig Production, Animal Reproduction. She carried out numerous individual and group research projects on different species such as cattle, horses, pigs, marine fauna, and felines. She participates as a Speaker in national and international events in the area of small animals nutrition and reproduction.