NUTR 3150 Lecture Notes - Lecture 17: Intrinsic Factor, Malabsorption, Multivitamin

• School: University of Guelph
• Department: Nutrition
• Course: NUTR 3150
• Professor: Kimberley Mc Comb

Document Summary

Calcium: the total daily intake of elemental calcium (through diet and supplements) for individuals over age 70 should be 1200 mg [grade b, recommend a food first approach: If possible, obtain all calcium needed through food: efficacy of calcium supplementation for reducing fractures is unclear, high dose supplementation of calcium has potential adverse effects: renal calculi (kidney stones) and cardiovascular events, other considerations: For older adults taking calcium supplements, calcium citrate may be a better choice than calcium carbonate: with age, gastric ph tends to increase, and calcium citrate is absorbed better in this higher ph environment. Vitamin b12: why are older adults at risk for vitamin b12 deficiency, malabsorption. Low stomach a(cid:272)id b(cid:1005)(cid:1006) (cid:374)ot released fro(cid:373) protei(cid:374: atrophi(cid:272) gastritis la(cid:272)k of i(cid:374)tri(cid:374)si(cid:272) fa(cid:272)tor (cid:449)hi(cid:272)h is (cid:374)eeded for b(cid:1005)(cid:1006) a(cid:271)sorptio(cid:374) Inadequate dietary intake: rda is o(cid:374)l(cid:455) (cid:1006). 4 g for (cid:373)e(cid:374) a(cid:374)d (cid:449)o(cid:373)e(cid:374, ul for vitamin b12 has not been established, options for supplementation.