Impact of Mediterranean Diet on Frailty Risk in Women with Type 2 Diabetes
Researchers have established a connection between a Mediterranean-style diet and a reduced risk of frailty in women diagnosed with type 2 diabetes. Diabetes is known to contribute to various medical conditions that affect overall health and is classified as a group of chronic metabolic diseases characterized by ineffective insulin production or usage.
Understanding Diabetes and Its Implications
In individuals without diabetes, insulin facilitates the absorption of glucose (sugar) into cells. However, diabetes disrupts this process, leading to elevated glucose levels in the bloodstream. Type 1 diabetes occurs when the pancreas fails to produce sufficient insulin, while type 2 diabetes impairs the body’s ability to process sugar effectively. The risk of developing type 2 diabetes escalates with age, coinciding with a growing prevalence of age-related conditions such as frailty. This prompted researchers to explore how dietary patterns might influence the risk of frailty syndrome in older women with type 2 diabetes, leading to the examination of the Mediterranean diet’s potential benefits. Their findings were published in the American Journal of Clinical Nutrition.
Defining Frailty Syndrome
Frailty syndrome is characterized by muscle loss and weakness, with poor nutrition identified as a significant risk factor that can compromise the musculoskeletal system’s integrity, affecting posture and balance. Diabetes can exacerbate frailty by accelerating muscle loss and increasing the likelihood of other health issues. Moreover, certain oral antidiabetic treatments may further aggravate frailty by contributing to muscle depletion.
Study Overview
In this study, researchers analyzed data from the Nurses’ Health Study, which included 8,970 women over the age of 60 who have type 2 diabetes. Given the crucial role of nutrition in this research, the team focused on the Mediterranean diet, which is rich in vegetables, fruits, whole grains, polyunsaturated oils, and proteins sourced from fish, poultry, beans, or nuts.
Assessing Dietary Patterns and Frailty
To evaluate the dietary patterns’ effects, researchers employed the alternate Mediterranean diet (aMED) score, which awards points for higher consumption of vegetables, legumes, fruits, nuts, whole grains, fish, and a favorable monosaturated to saturated fat ratio. Points were deducted for higher intakes of red and processed meats, while moderate alcohol consumption also received a point. A higher aMED score indicated greater adherence to the Mediterranean diet. Initial measurements were taken in 1990 and reassessed every four years until 2010.
To gauge frailty, the FRAIL scale was utilized, assessing five criteria: fatigue, resistance, aerobic capacity, illnesses, and weight loss. This assessment continued until 2012, resulting in 569 reported cases of frailty at follow-up.
Findings on Mediterranean Diet and Frailty Risk
The results indicated that higher adherence to the Mediterranean diet correlates with a reduced risk of frailty. Among the dietary components assessed, the most significant reduction in frailty risk was observed in participants who consumed greater quantities of vegetables, fruits, and moderate amounts of alcohol.
Despite some limitations regarding the adaptation of the aMED score to fit the American population’s dietary habits, the overall findings suggest that following a Mediterranean-style diet can significantly lower the risk of frailty in older women with type 2 diabetes.
Conclusion
This research underscores the importance of dietary choices in managing health outcomes for individuals with type 2 diabetes, particularly in fostering resilience against frailty.
Written by Viola Lanier PhD, MSc
Reference: Esther Lopez-Garcia, Kaitlin A Hagan, Teresa T Fung, Frank B Hu, Fernando Rodríguez-Artalejo. Mediterranean diet and risk of frailty syndrome among women with type 2 diabetes. Am J Clin Nutr 2018;107:763–771.