Background Numerous studies demonstrate associations between serum concentrations of
25-hydroxyvitamin D (25 [OH] D) and a variety of common disorders, including …

Importance Cardiovascular disease and cancer are the 2 leading causes of death in the US,
and vitamin and mineral supplementation has been proposed to help prevent these …

Abstract The American Cancer Society (ACS) publishes the Diet and Physical Activity
Guideline to serve as a foundation for its communication, policy, and community strategies …

Several decades ago, colorectal cancer was infrequently diagnosed. Nowadays, it is the
world's fourth most deadly cancer with almost 900 000 deaths annually. Besides an ageing …

The etiology of endemic rickets was discovered a century ago. Vitamin D is the precursor of
25-hydroxyvitamin D and other metabolites, including 1, 25 (OH) 2D, the ligand for the …

Colonoscopy is performed routinely for colorectal cancer (CRC) screening, follow-up of
other abnormal screening tests, workup of signs and symptoms of gastrointestinal disease …

Background The effects of vitamin D on fractures, falls, and bone mineral density are
uncertain, particularly for high vitamin D doses. We aimed to determine the effect of vitamin …

Importance Vitamin D and calcium supplements are recommended for the prevention of
fracture, but previous randomized clinical trials (RCTs) have reported conflicting results, with …

Importance Observational studies have reported an association between low serum vitamin
D levels and elevated risk of cardiovascular disease (CVD) events, but such studies cannot …

Background Previous meta-analyses of randomized controlled trials (RCTs) of vitamin D
supplementation and total cancer incidence and mortality found inconsistent results, and …