Vitamin D Supplements May Help Slow Biological Aging

Recent research suggests vitamin D supplements may slow DNA damage related to aging, but evidence on extending lifespan is inconclusive. Despite mixed results, the author continues taking supplements due to widespread deficiency risks, especially in the UK where sunlight is insufficient for much of the year. While vitamin D is essential for bone health and immune function, large studies have not shown clear benefits in preventing major diseases, though deficiency remains common and best avoided. Testing is generally recommended only for specific health conditions, but supplementation is a simple, safe way to maintain adequate levels during darker months.