4. Vitamin D benefits
Vitamin D plays a supportive role in improving insulin sensitivity, but this benefit mainly applies to individuals with a documented deficiency. Supplementing with 2,000 to 4,000 IU daily can help optimize vitamin D levels, potentially aiding glucose metabolism.
Before starting supplementation, it’s important to get a blood test to assess vitamin D status. Excessive doses without deficiency may offer no additional benefit and could carry risks.
5. Magnesium benefits
Magnesium is involved in hundreds of enzymatic processes, including those related to glucose regulation. Supplementing with 300 to 400 mg daily of magnesium citrate or glycinate may improve glycemic control and help relax blood vessels, supporting cardiovascular health in people with diabetes.
Because magnesium absorption varies by form, citrate and glycinate are preferred for their bioavailability.
6. Berberine effects
Berberine is a plant compound that has demonstrated glucose-lowering effects comparable to metformin in some studies. Typical dosing is 500 mg two to three times per day. It may help reduce fasting blood glucose but should be used cautiously due to potential gastrointestinal side effects like stomach discomfort.
Berberine is best considered as an adjunct to prescribed therapies and lifestyle changes, not a replacement.
