How can my bra size predict the onset of type 2 diabetes?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

We already know that body fat influences the risk for type 2 diabetes, a condition marked by high blood glucose from ineffective insulin (insulin resistance), the hormone that shuttles sugar in and out of cells. People who are overweight are at much higher risk for type 2 diabetes because fat cells are less responsive to insulin compared to non-fat cells (like muscle). Breast development begins in puberty and continues through the early 20s. Young breast tissue is comprised of highly active fat cells, so breast size could be a marker for type 2 diabetes.

Using the information collected during a long-term Nurses Health Study, Canadian researchers found that women who wore a D cup or greater during their 20s had an increased risk of type 2 diabetes. However, it is unclear whether the hormonally active breast tissue contributes more to insulin resistance than other types of fat tissue.


Continue Learning about Diabetes


Diabetes mellitus (MEL-ih-tus), often referred to as diabetes, is characterized by high blood glucose (sugar) levels that result from the body’s inability to produce enough insulin and/or effectively utilize the insulin. Diabetes ...

is a serious, life-long condition and the sixth leading cause of death in the United States. Diabetes is a disorder of metabolism (the body's way of digesting food and converting it into energy). There are three forms of diabetes. Type 1 diabetes is an autoimmune disease that accounts for five- to 10-percent of all diagnosed cases of diabetes. Type 2 diabetes may account for 90- to 95-percent of all diagnosed cases. The third type of diabetes occurs in pregnancy and is referred to as gestational diabetes. Left untreated, gestational diabetes can cause health issues for pregnant women and their babies. People with diabetes can take preventive steps to control this disease and decrease the risk of further complications.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.