Yogurt May Reduce Risk of Diabetes A New Study Finds
Title: Dairy consumption and risk of type 2 diabetes: 3 cohorts of US adults and an updated meta-analysis
Journal: BMC Medicine
Author: Chen et al.
Objective: To evaluate the association between total dairy and individual types of dairy consumptions and incident T2D in US adults.
Diabetes Mellitus, which is commonly referred to as ‘diabetes’, is a medical condition in which your body's blood sugar is chronically elevated beyond the normal range. There are two types, both of which are related to the function of the pancreas.
Type 1 typically occurs in children and young adults and is associated with the pancreas’ inability to produce enough insulin. The job of insulin is to push glucose (aka sugar) into your cells to use as energy, among other things. This is also known as insulin dependent diabetes.
Type 2 diabetes tends to occur in overweight adults, although there is an increasing incidence in children. This version occurs when your pancreas can’t keep up with the high levels of glucose in your blood and your cells actually become resistant to the function of insulin.
This particular study focus on type 2 diabetes, which has multiple risk factors for development. This includes
- Weight (especially BMI >30)
- Body fat distribution
- Lack of physical activity
- Family history
- Gestational diabetes (in pregnant women)
- Polycystic ovarian disease
Here are a few other facts about diabetes in the US (from CDC, 2014)
- 9.3% of the US population has DM (29.1 million people)
- 27% are undiagnosed
- 1.7 million new cases are diagnosed each year
- Total costs of diabetes care in the US is 245 billion annually (2012)
This study included:
- 41,436 men in the Health Professionals Follow-Up Study (1986 to 2010),
- 67,138 women in the Nurses’ Health Study (1980 to 2010),
- 85,884 women in the Nurses’ Health Study II (1991 to 2009).
Diet was assessed by food-frequency questionnaires every four years.
Incidence of Type 2 Diabetes was confirmed by a supplementary questionnaire.
The authors documented 15,156 incident T2D cases
After adjusting for other factors, total dairy consumption was not associated with a reduced risk of developing type 2 diabetes (HR 0.99, 95% CI 0.98, 1.01)
This was true of both high fat and low fat dairy products.
However, one serving of yogurt per day reduced your risk of Type 2 diabetes by 17% (HR 0.83, 95% CI 0.75, 0.92).
Yogurt consumption is associated with a significant reduction in the risk of developing type 2 diabetes.
Other dairy products, however, did not share that same reduction in risk.