This Common Vitamin Can Slash Your Risk of Developing Type 2 Diabetes

Key Points:

• New research indicates that high-dose vitamin D supplementation may reduce the risk of developing type 2 diabetes by 19% in people with prediabetes who have specific genetic variations in the vitamin D receptor gene.
• The study analyzed data from over 2,000 adults with prediabetes and found that genetic differences in the vitamin D receptor affect how individuals respond to vitamin D supplementation, influencing insulin function and glucose control.
• While vitamin D supplementation shows promise for certain individuals, experts emphasize that diet and exercise remain the primary and most effective strategies to reduce diabetes risk for people with prediabetes.
• Genetic testing to identify who might benefit most from vitamin D supplements is not yet routine, and baseline and follow-up blood tests for vitamin D levels can help guide supplementation decisions.
• Vitamin D supplements are considered supportive rather than a replacement for lifestyle changes, and individuals should consult healthcare providers before starting supplementation, especially since doses above 4,000 IU per day may be necessary for some to achieve beneficial blood levels.