NUTR 250 Lecture Notes - Lecture 18: Endosperm, Oatmeal, Peripheral Neuropathy
Document Summary
Sun exposure provides 80-100% of vitamin d3. Depends on time of day, location, season, age, skin color, and use of sunscreen. Fatty fish, cod liver oil, fortified milk, fortified cereals. Ai: 5-15 micrograms a day depending on age. 80% of d2 is absorbed and transported to the liver and is converted to calcidiol. Vitamin d increases intestinal absorption of calcium and phosphorus. Vitamin d releases calcium and phosphorus from bone. Leads to increased calcium and phosphorus in blood. Decreased risk of infectious and autoimmune disease. Protects against diabetes, hypertension, dementia, and cancer. Enlarged heads, joints, rib cage, deformed pelvis, bowed legs. Caused by fat malabsorption, cystic fibrosis, dark skin, low milk intake, and minimal sun exposure. Osteomalacia: poor calcification of newly synthesized bones. Caused by kidney or liver disease, impaired fat absorption, dark skin, limited uv exposure. Excess blood calcium, calcium deposits in kidneys, heart, lungs, kidney dysfunction, anorexia, bone demineralization, weakness, joint pain.
