There is a big difference between your chronological age and your biological age, and your biological age may be modifiable by the choices you make. Choosing to take this supplement may lower your biological age and add three years to your life!
One of the leading theories of aging is the telomere theory. Telomeres are protective caps at the end of your chromosomes. As cells replicate, telomeres get shorter, counting down to the cell’s death. Shrinking telomere length is associated with aging and with increased risk of age-related conditions, including cancer and cardiovascular disease.
This study of 1,031 Americans whose average age was around 65, found that, while the ones given a placebo for four years experienced substantial shortening of their telomeres, the ones given 2,000 IU of vitamin D a day experienced only very minimal telomere shortening. The difference was significant. The researchers estimate that the benefit of vitamin D amounted to a 3-year decrease in aging.
The American Journal of Clinical Nutrition. 2025;doi:10.1016/j.ajcnut.2025.05.003.