Animals can get vitamin A from sources like liver, fish liver oils, dairy products, and fortified foods.
Citrus fruits are good sources of vitamin C.
Some alternative sources of Vitamin C that do not contain citric acid include bell peppers, strawberries, broccoli, and kiwi.
Neither plants nor animals are independently capable of constructing vitamin B12 (Only bacteria have the enzymes required for its synthesis). B12 is replenished in the body from dietary sources.
Vitamin D is a fat-soluble vitamin that exists in two main forms: Vitamin D2 (ergocalciferol) and Vitamin D3 (cholecalciferol). Vitamin D3 is the form synthesized in the skin from sunlight exposure and is also found in animal-derived foods, while Vitamin D2 is derived from plants and fungi sources.
Sunlight is a rich source of Vitamin D, which plays a key role in calcium absorption and bone health. Exposure to sunlight triggers the body to produce Vitamin D in the skin. It is important to get a balance of sunlight exposure and dietary sources of Vitamin D for overall health.
Animal sources have low concentrations of vitamin C. One good example is cow's milk. Nowadays animal sources of vitamin c is usually due to genetically modified animals that are made to have higher concentrations of vitamin c in its body and byproduct compared to its normal brethren.AnswerAccording to Wikipedia, a calf's liver is the best animals source of Vitamin C, which contains 36mg of Vitamin C in every 100g, compared to 2mg in cows' milk. See the related links for more information.
The best sources of vitamin A are as follows. * eggs * cheese * milk, * oily fish
Citrus fruits are good sources of vitamin C.
The animal version of vitamin D is known as vitamin D3, or cholecalciferol. It is synthesized in the skin of animals when exposed to sunlight and can also be obtained from dietary sources such as fatty fish and egg yolks.
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Tomatoes and lemons are good sources of Vitamin C. :D
Vitamin D is a class of prohormones that is used by animals to make steroidal hormones. Plants do not need these compounds.
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Fruits
Excellent sources of vitamin E include spinach, turnip greens, and chard. Very good sources of vitamin E include mustard greens, cayenne pepper, sunflower seeds, almonds, bell peppers, and asparagus. Good sources of vitamin E include collards, kale, watercress, tomatoes, cranberries, broccoli, Brussels sprouts, papaya, raspberries, and carrots.
Carrots, sweet potatoes
Vitamin C is ascorbic acid - C6H8O6. Sources of vitamin C are vegetable products; but for a great production vitamin C is man made.