“Over” supplementation of vitamin D, referred to as “hypersufficiency,” can slow the progression of frailty, according to a new study with mice.
When it comes to vitamin D, most adults exhibit either frank deficiency, which results in clear clinical symptoms, or insufficiency, which often goes undetected. But, until now, researchers have had difficulty determining how that insufficiency impacts physical health and the vulnerability of older adults to frailty as they age.
