VITAMIN C IN FOODS
Most animals are able to synthesize vitamin C and so, do not require a dietary source. However, humans, other primates, guinea pigs, fruit bats, and a few birds and fish are unable to synthesize this water-soluble vitamin. They rely on their diets for a vitamin C source.
Vitamin C, also known as ascorbic acid, is involved in many processes in the human body, primarily as an electron donor. The term vitamin C actually refers not only to ascorbic acid but also to its oxidized form, dehydroascorbic acid. By adding or losing 2 hydrogens vitamin C undergoes reversible reduction and oxidetion. Both forms of vitamin C are found in the foods we eat.
Most fruits and vegetables contain some vitamin C, but the richtest sources are citrus fruits, peppers, and green vegetables. Animal products and grains are generally not good sources. An intake of 5 serving per day of fruits and vegetables can provide ample vitamin C, depending on the foods chosen….
