availability Keeping weight – Keeping weight under control is important for optimal vitamin D absorption (Photo: Freepik) Vitamin D is a fat-soluble vitamin, meaning the body stores it in fat tissues. So when a person has excess fat in their body, especially around the waist, more of the vitamin gets blocked instead of flowing into the bloodstream where it is needed. “Thus, even if two people get equal amount of sunlight, the one with higher body fat percentage may have lower levels of active vitamin D,” said Dr Swapnil Zambare, arthroscopy consultant at KIMS Hospital, Thane.

Why does this matter for bone and joint health? Vitamin D plays a major role in calcium absorption and bone strength. Low levels can lead to weakened bones, muscle fatigue and increased risk of injury, which Dr.

Zambare said is often seen in athletes and young adults who gain weight. “Low vitamin D levels also slow down recovery after joint injuries and surgery because muscles and ligaments heal better when the body has adequate stores of vitamin D,” Dr. Zambarre said.