Purpose While the benefits of ascorbic acid (vitamin C, ascorbate) as an essential nutrient are well established, its effects on tumor cells and in tumor treatment are controversial. In particular,…
Context Multivitamin preparations are the most common dietary supplement, taken by at least one-third of all US adults. Observational studies have not provided evidence regarding associations of multivitamin use with…
Background: Our objective was to conduct a systematic review and meta-analysis of prospective studies on colorectal cancer (CRC) and vitamin D intake and 25-hydroxyvitamin D status, as part of the…
The study by Ford et al.1 offers further evidence that higher serum 25-hydroxyvitamin D [25(OH)D] levels are associated with reduced mortality rates. They found a 7% reduction [95% confidence interval…