Consuming Carbs Last May Improve Diabetes Control

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Consuming Carbs Last May Improve Diabetes Control
Consuming Carbs Last May Improve Diabetes Control

(HealthDay News) — The order in which individuals with type 2 diabetes eat their food can affect their blood glucose levels, according to a small study published in Diabetes Care.

The study involved 11 people who were overweight or obese and had type 2 diabetes treated with metformin. The participants were given a typical Western diet meal, consisting of a variety of vegetables, protein, carbohydrates and fat. 

The study included two meals eaten 1 week apart. For the first meal, the researchers recorded blood glucose levels in the morning before food. Participants were instructed to eat carbohydrates first, followed by protein, vegetables, and fat 15 minutes later. 

The researchers checked the participants' blood glucose 30, 60 and 120 minutes after their meal. A week later, the process was repeated; however, the patients reversed the order in which they ate their food.

The researchers found that after eating carbohydrates last, the participants' blood glucose levels were 28.9% lower after 30 minutes, 36.7% lower after 60 minutes and 16.8% lower after 2 hours. Insulin levels were also much lower when people had protein and vegetables first, the study revealed.

"Based on this finding, instead of saying 'Don't eat that' to their patients, clinicians might instead say, 'Eat this before that,'" principal investigator Louis Aronne, MD, a professor of metabolic research and of clinical medicine at the Weill Cornell Medical College in New York City, said in a college news release. 

"While we need to do some follow-up work, based on this finding, patients with type 2 diabetes might be able to make a simple change to lower their blood sugar throughout the day, decrease how much insulin they need to take and potentially have a long-lasting, positive impact on their health."


  1. Shukla AP et al. Diabetes Care. 2015;38(7):e98-e99.
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