Group items tagged

How much vitamin D3 do the elderly need? Viljakainen HT, Palssa A, Kärkkäinen M, Jakobsen J, Lamberg-Allardt C. J Am Coll Nutr. 2006 Oct;25(5):429-35. PMID: 17031013 Conclusions: A clear dose response was noted in S-25-OHD to different doses of vitamin D3. The recommended dietary intake of 15 µg is adequate to maintain the S-25-OHD concentration around 40-55 nmol/L during winter, but if the optimal S-25-OHD is higher than that even higher vitamin D intakes are needed. Interestingly, subjects with lower vitamin D status at baseline responded more efficiently to supplementation than those with more adequate status

Dairy and bone health. Heaney RP. J Am Coll Nutr. 2009 Feb;28 Suppl 1:82S-90S. PMID: 19571166

Dietary acid-base balance, bone resorption, and calcium excretion. Jajoo R, Song L, Rasmussen H, Harris SS, Dawson-Hughes B. J Am Coll Nutr. 2006 Jun;25(3):224-30. PMID: 16766781 Conclusions: Diet changes that increase renal NAE are associated with increases in serum PTH, bone resorption, and calcium excretion over a 60-day period.

Plasma vitamin D and 25OHD responses of young and old men to supplementation with vitamin D3. Harris SS, Dawson-Hughes B. J Am Coll Nutr. 2002 Aug;21(4):357-62. PMID: 12166534 Conclusions: There appears to be no age-related impairment among men in the absorption or metabolism of 20 µg/day of vitamin D3 taken orally for at least eight weeks.

Calcium absorption varies within the reference range for serum 25-hydroxyvitamin D. Heaney RP, Dowell MS, Hale CA, Bendich A. J Am Coll Nutr. 2003 Apr;22(2):142-6. PMID: 12672710