Posted on Feb 12, 2016, 6 a.m.
30 grams of protein at breakfast may help reduce glucose spikes, among type-2 diabetic adults.
It is not uncommon for adult men and women to experience post-meal glucose spikes. Jill A. Kanaley, from the University of Missouri (Missouri, USA), and colleagues enrolled 12 type-2 diabetic men and women, ages 21 to 55 years, in a study to assess whether increased protein consumption at breakfast could stabilize blood levels of glucose and incretin. Subjects ate either a high-protein or high-carbohydrate breakfast, and the lunch included a standard amount of protein and carbohydrates. The researchers found that eating more protein at breakfast lowered individuals' post-meal glucose levels. Insulin levels were slightly elevated after the lunch meal, which suggested that their bodies were working appropriately to regulate blood-sugar levels. Observing that: “In type 2 diabetic individuals, compared with a high-carbohydrate breakfast, the consumption of a high-protein breakfast meal attenuates the postprandial glucose response and does not magnify the response to the second meal,” the study authors write that: “Insulin, C-peptide, and [glucose-dependent insulinotropic peptide] concentrations demonstrate the second-meal phenomenon and most likely aid in keeping the glucose concentrations controlled in response to the subsequent meal.”
Young-Min Park, Timothy D Heden, Ying Liu, Lauryn M Nyhoff, John P Thyfault, Heather J Leidy, Jill A Kanaley. “A High-Protein Breakfast Induces Greater Insulin and Glucose-Dependent Insulinotropic Peptide Responses to a Subsequent Lunch Meal in Individuals with Type 2 Diabetes.” J. Nutr. March 2015 145: 452-458.