- With Mayo Clinic endocrinologist
Maria Collazo-Clavell, M.D.
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Maria Collazo-Clavell, M.D.
Maria Collazo-Clavell, M.D.
Dr. Maria Collazo-Clavell is board certified in internal medicine, endocrinology, diabetes and metabolism. She is a consultant in the Division of Endocrinology, Diabetes, Metabolism & Nutrition at Mayo Clinic and an assistant professor at Mayo Clinic College of Medicine.
The Aibonito, Puerto Rico, native has been with Mayo Clinic since 1994.
She is a member of the American Association of Clinical Endocrinologists, the American College of Endocrinology, the American Diabetes Association and The Endocrine Society.
Dr. Collazo-Clavell is medical editor for the Web site's diabetes content and the book "Mayo Clinic on Managing Diabetes." Her clinical interests include management of type 1 and type 2 diabetes, obesity and nutritional disorders.
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Causes (1)
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Complications (2)
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Treatments and drugs (2)
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Lifestyle and home remedies (10)
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- see all in Lifestyle and home remedies
Alternative medicine (1)
- Diabetes treatment: Can cinnamon lower blood sugar?
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Question
Caffeine: Does it affect blood sugar?
Does caffeine affect blood sugar?
Answer
from Maria Collazo-Clavell, M.D.
Short-term studies indicate that caffeine impairs insulin action but not necessarily blood sugar (glucose) levels in young, healthy adults. However, in individuals with type 2 diabetes, the impact of caffeine on insulin action may be associated with a small but detectable rise in blood sugar levels, particularly after meals. The amount of caffeine noted to have caused this effect was about 500 milligrams (or the equivalent of five cups of plain, brewed coffee) a day.
For individuals with type 2 diabetes who are struggling to control their blood sugar levels, limiting your caffeine intake may provide a benefit.
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