date:May 08, 2012
f vitamin D2, report researchers led by Laura Tripkovic from the University of Surrey, England.
This meta-analysis indicates that vitamin D3 is more efficacious at raising serum 25(OH)D concentrations than is vitamin D2, and thus vitamin D3 could potentially become the preferred choice for supplementation,they wrote.
However, additional research is required to examine the metabolic pathways involved in oral and intramuscular administration of vitamin D and the effects across age, sex, and