Jan 23, 2018
Researchers divided 2300 postmenopausal, healthy women aged 65 or older, into two groups. One group received 2000 IU/day of vitamin D3 and 1500 mg/day of calcium; the other a placebo. After 4 years, the difference in any new cancer incidence between groups was...
Jan 15, 2018
Contrary to current opinion, a systematic review of 33 randomized trials in about 50,000 community-living adults over 50 years old found no benefit for supplementation of vitamin D and/or calcium. This study strongly supports the U.S. Preventive Services Taskforce in...
Jul 7, 2017
A British study found Vitamin D3 to be significantly more effective at raising total serum 25-hydroxyvitamin D than Vitamin D2 in the wintertime. During the 12 week trial, each group received biscuits or juice fortified with 600 IU (15 micrograms) of D2 or D3. The...
Jan 5, 2016
Swiss researchers evaluated monthly high-dose vitamin D supplementation in 200 adults 70 years and older with a history of a fall in the past year. They were randomized to receive one of three monthly regimens, including the control group. At 12 months, lower...
Aug 10, 2015
Traditionally, low vitamin D levels have been associated with lower bone-mineral density (BMD). However, there is no universal agreement on how to define "low". Researchers studied 230 postmenopausal women 75 years or older who had...