NTS 135 Lecture Notes - Bleeding On Probing, Nitrosamine, Carnitine
Document Summary
Why are fresh foods the best sources of vitamin c: functions of vitamin c (ascorbic acid) Formation of body proteins: collagen synthesis; found in connective tissue, bone, teeth, tendons, blood vessels. Formation of other compounds: carnitine synthesis; transports fatty acids, serotonin and norepinephrine synthesis. Supporting body defenses: antioxidant, vital for immune function, may decrease formation of carcinogen nitrosamines in stomach, aids reactivation of vitamin e. Absorption of iron: increases iron absorption: vitamin c deficiency. Reduced collagen synthesis: causes scurvy, bruising, bleeding gums, poor wound healing in 1700s, british physician discovered citrus fruits prevented and restored health of sailors, getting enough vitamin c. Adult rda: 75 milligrams per day for women, 90 milligrams per day for men. Smokers: need extra 35 milligrams because of increased oxidation by tobacco smoke in lungs, average u. s. consumption: 70 to 100 milligrams per day, food sources of vitamin c. Brighter fruits and vegetables equals more vitamin c.
