HNFE 1004 Lecture Notes - Lecture 13: Cardiovascular Disease, Pituitary Gland, Bioavailability
Document Summary
Pth stimulates production of active vitamin d. Pth and activated vitamin d mobilize calcium from the bone and decrease calcium excretion from the kidneys. Males & females (19-50) - 1000 mg. Choose ones that contain calcium citrate or carbonate. Upper tolerable intake level (ul) is 2,500 mg. Cofactor in more than 300 chemical reactions. Role in the transport of ions across cell membranes for muscle contraction, nerve impulse conduction, and maintaining heart rhythm. Involved in extracting energy from carbohydrates, proteins, and fats. Dark chocolate, almonds, prunes, spinach, quinoa, etc. Kidneys will excrete less and body will absorb more. From supplement use, toxicity actually occurs between dris for women and men. Component of bone and cartilage, phospholipids, dna, and rna. Meats, dairy products, plant based proteins, etc. Rare, as found in protein-rich foods and food additives. Increased levels associated with cardiovascular disease, particularly in people with kidney disease. Major positively charged ion in extracellular fluids.