NUTR 1020 Lecture Notes - Lecture 14: Manganese, Osteopenia, Enzyme

• School: University of Utah
• Department: Nutrition, Division of
• Course: NUTR 1020
• Professor: Anandh Babu Pon Velayutham

Document Summary

Active vitamin d enters blood and regulate calcium level. Darker skinned people absorb less vitamin d. How many minutes of mid-day summer sun needed for adequate vitamin. Depends on exposure of skin to sun, age, skin color, elevation, etc. Bone health: vitamin d+ parathroid hormone+ calcitonin hormone-> maintains bone calcium. Regulates calcium: regulates absorption of calcium and phosphurus from the small intestine, regulates calcium excretion via the kidney, bone remodeling. Cell growth, immune function, and regulation of inflammation. Cardiovascular disease, diabetes, hypertension, and colon cancer. Low vitamin d in the blood -> decreased calcium absorption -> reduced calcium and phosphorus deposition -> weak bones. Medical condition associated with vitamin d deficiency. Skeletal abnormalities- bowed legs, and thick wrists and ankles. Soft bone- an adult disease comparable to rickets. Leads to decrease in bone density and bones become porous, weak, and break easily. Vitamin d is mainly received through animal source! High amount of vitamin d is bad.