r/Vitamin_D

Vitamin D came up in an interesting review on prediabetes. The researchers looked at whether it could help people get their blood sugar back into the normal range.

This 2025 review combined 10 trials involving 4478 adults with prediabetes. Across those trials, about 19% of people receiving vitamin D returned to normal blood sugar regulation, compared with 14% receiving a placebo. That’s a modest difference, but worth paying attention to.

The trials used different doses and forms of vitamin D. I would take this as a reason to discuss its place in a prediabetes care plan, with food choices and physical activity still getting attention.

Has your doctor ever brought up vitamin D when discussing your blood sugar?