25-hydroxyvitamin D is the storage form measured in blood. Longevity-oriented targets are 50–80 ng/mL (125–200 nmol/L). Deficiency is endemic — even in sun-rich regions like the UAE — because of indoor lifestyles, sunscreen, and clothing. Supplementation typically requires 2,000–5,000 IU/day with K2, dosed against a measured baseline rather than guessed.
Measured at Longevity Cliniq
See your own Vitamin D (25-OH) number.
Every Longevity Cliniq panel includes the markers that drive healthspan, interpreted by a physician — across Dubai, Abu Dhabi and the wider UAE.