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One common active form is 1,25-dihydroxyvitamin D. [4] The term vitamin D in this article means cholecalciferol, ergocalciferol, 25-hydroxyvitamin D, and the active forms. The role of vitamin D is best characterized as enabling calcium absorption and regulating calcium homeostasis. Vitamin D also play a role in phosphate absorption. [5]
Vitamin D is a dietary requirement for cats as they lack the ability to efficiently synthesize vitamin D3 using sunlight. This fat-soluble vitamin is required in cats for bone formation through the promotion of calcium retention, along with nerve and muscle control through absorption of calcium and phosphorus.
Also, vitamin D is an essential vitamin because cats cannot convert it from precursors in the skin. [24] Water-soluble vitamins. Cats can synthesize niacin, but their breakdown exceeds the rate that it can be synthesized and thus, have a higher need for it, which can be fulfilled through an animal-based diet. [24]
Natural sources of Vitamin E are primarily plant based and therefore cat diets with high amounts of raw protein, such as fish, need to be supplemented with Vitamin E. [17] Vitamin E deficiencies have been well documented in both cats and dogs. Deficiencies of Vitamin E will result in cell damage and death in skeletal muscle, heart, testes ...
Cats fed a dry food diet have a better oral health status regarding the presence of dental diseases and tartar accumulation when compared to cats fed a wet food diet. [1] Similarly, when cats are fed only or partially dry commercially prepared cat food as part of their feeding program, there is a reduction in tartar and gingival disease when ...
Although cats are obligate carnivores, vegetarian and vegan cat food are preferred by owners uncomfortable with feeding animal products to their pets. The U.S. Food and Drug Administration Center for Veterinary Medicine has come out against vegetarian cat and dog food for health reasons. Cats require high levels of taurine in their diet.
[4] He convinced Friskies executives to do a market trial for cat food, which was conducted on the west coast of the United States in 1956. [2] [3] [8] The cat food was made of mackerel byproducts, cereals, vegetables and vitamins. [2] The trial surprised Friskies executives when the cat food sold successfully. [2]
The Institute of Medicine in 2010 recommended a maximum uptake of vitamin D of 4000 IU/d, finding that the dose for lowest observed adverse effect level is 40,000 IU daily for at least 12 weeks, [25] and that there was a single case of toxicity above 10 000 IU after more than seven years of daily intake; this case of toxicity occurred in ...