vitamin D Linked to Slower Cellular Aging in New Study
A daily dose of vitamin D3 may help protect cells from aging, according to research recently published in The American Journal of Clinical Nutrition. The study found that individuals who took 2000 IU (International Units) of vitamin D3 daily experienced less shortening of telomeres – protective “caps” on the ends of DNA strands.
Telomeres function like the plastic tips on shoelaces, preventing DNA from fraying during cell division. With each cell division,telomeres shorten. Critically short telomeres can lead to cell malfunction or death, contributing to the aging process and increasing susceptibility to diseases like cancer, heart disease, and dementia.
researchers followed over a thousand participants,providing half with 2000 IU of vitamin D3 daily and the other half with a placebo. After four years, they observed a measurable difference in telomere length: the vitamin D group exhibited slightly longer telomeres compared to the placebo group. Notably, the study also tested omega-3 fatty acids, which showed no effect on telomere length, suggesting vitamin D was the key factor.
While the study doesn’t prove vitamin D extends lifespan, researchers emphasize the significance of slowing cellular aging. Shorter telomeres are associated with a range of health problems, including heart disease, cancer, and autoimmune diseases. This finding builds upon previous research from the same group demonstrating vitamin D’s potential to lower the risk of metastatic cancer and autoimmune conditions.
Combined, these results suggest a daily dose of 2000 IU of vitamin D may help maintain overall health and well-being for a longer period. This dosage is higher than standard recommendations.
Source: The American Journal of Clinical Nutrition
