Vitamins Organic compounds contain carbon many different structures from simple to complex Non-caloric
Vitamins Essential Lack of vitamin leads to deficiency syndromes Cannot be synthesized in body (with exceptions) Example: Scurvy & vitamin C Needed in small amounts Milligrams (mg) 10-3grams Vitamin C - 60 mg Micrograms (ug) 10-6grams Vitamin B-12 - 2 ug
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Limited Synthesis of Vitamins Vitamin D Synthesized in the skin Requires sunlight & 7-dehydrocholesterol Niacin Requires tryptophan Depends on adequate protein status Vitamin K—from bacteria in our gut