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Animal-source foods are a diverse group of foods that are rich in bioavailable nutrients including calcium, iron, zinc, vitamins B12, vitamin D, choline, DHA, and EPA. [11] Animal-source and plant-based foods have complimentary nutrient profiles and balanced diets containing both reduce the risk of nutritional deficiencies. [ 11 ]
Other nutrients found in animal products include calories, fat, essential vitamins (including B12) and minerals (including zinc, iron, calcium, magnesium). [67] Food products produced by animals include milk produced by mammary glands, which in many cultures is drunk or processed into dairy products (cheese, butter, etc.).
Meat – Meat is animal flesh that is eaten as food. [10]: 1 Humans are omnivorous, [11] [12] [13] and have hunted and killed animals for meat since prehistoric times. [13] The advent of civilization allowed the domestication of animals such as chickens, sheep, pigs and cattle, and eventually their use in meat production on an industrial scale.
Live food is commonly used as feed for a variety of species of exotic pets and zoo animals, ranging from crocodilians (crocodiles and alligators) to various snakes, turtles, lizards and frogs, but also including other non-reptilian, non-amphibian species such as birds and mammals (for instance, pet skunks, which are omnivorous mammals, can ...
Animal feed is an important input to animal agriculture, and is frequently the main cost of the raising or keeping of animals. Farms typically try to reduce cost for this food, by growing their own, grazing animals, or supplementing expensive feeds with substitutes, such as food waste like spent grain from beer brewing .
Many large, well-known pet food brands use animal by-products as protein sources in their recipes. This can include animal feet, livers, lungs, heads, spleens, etc or an admixture in the form of meat and bone meal. These organs are usually not eaten by humans depending on culture, but are safe and nutritious for pets regardless. By-products can ...
Oligophagy is a term for intermediate degrees of selectivity, referring to animals that eat a relatively small range of foods, either because of preference or necessity. [2] Another classification refers to the specific food animals specialize in eating, such as: Carnivore: the eating of animals Araneophagy: eating spiders; Avivore: eating birds