The Facts About Animal By-Products in Pet Food

By-products are an excellent source of protein and other nutrients.

By-products defined:

  • A by-product is any ingredient that is produced or left over when some other product or ingredient is made.
  • Broths and gelatin are examples of meat by-products in human foods.
  • By-products in pet foods that meet Association of American Feed Control Officials (AAFCO) guidelines come from clean animal parts other than meat, such as liver, kidneys and other organs.1
  • Purina purchases all by-products from USDA-inspected plants. They must meet stringent criteria for nutrient content, production and quality assurance.

the fact about animal byproduct

By-products can be more nutritious than meat alone.

  • Muscle meat is deficient in many nutrients, including calcium and other vitamins and minerals. Many of these missing nutrients are abundant in ingredients such meat by-products or poultry by-products.
  • By-products are also an excellent source of protein and amino acids. For example, poultry by-product meal contains 60% to 70% protein and can be highly digestible.2

“Healthy and appropriately-sourced animal by-products play an important role in complete and balanced pet foods as well as in human foods by allowing us to use, rather than waste, nutritious components of a whole food ingredient. By-products are an important component in feeding a growing populations of humans and pets alike.”

1. Wortinger A. Nutritional myths. J Amer Anim Hosp Assoc. 2005;41(4):273—276.
2. Murray SM, et al. Raw and rendered animal by-products as ingredients in dog diets. J Nutr. 1998;128(12):2812S—2815S.