Have you ever wondered why we humans need to have vitamin C in our diet, but dogs and cats don’t?
American schoolchildren often begin their study of U.S. history by learning about the 14th and 15th century European explorers. I distinctly remember a story we were told about how sailors eventually learned to carry potatoes or limes on their long voyages in order to prevent the disease called scurvy. We now know that scurvy is caused by a deficiency in ascorbic acid, also known as vitamin C.
Thus, vitamin C is considered an “essential” vitamin because we simply must have it in our diet. Without it, we cannot make collagen and our tissues lose integrity, bones become brittle, we bleed out of various orifices, and our bodies basically fall apart. That’s scurvy.
However, have you noticed that neither dog food nor cat food contains any citrus fruit? Both…
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