Latest by Rodrigo Barros, M.D., Ph.D.

Woman checking her glucose levels.

Is 108 A High Fasting Glucose Level?

My fasting glucose is always between 100-108. I thought anything under 110 was fine, but I just wanted to make sure?

Woman injecting herself with insulin.

Can I Let a Friend Try an Insulin Injection?

What would happen if I let my friends try taking an injection of insulin? Since they don’t have diabetes, would it make any difference in their bodies?

Diabetic woman testing her blood glucose levels outside.

When is the Best Time to Test Blood Sugar?

When is the best time to test blood glucose: before or after a meal? Learn how to test blood sugar at different times and about the official testing guidelines.