A recent study conducted by researchers from Tufts University and Harvard T.H. Chan School of Public Health has revealed the importance of carbohydrate quality in healthy aging. The study, published in the journal JAMA Network Open, focused on the impact of dietary fiber, high-quality carbohydrates, and total carbohydrates on the health outcomes of older women.
Andres Ardisson Korat, the lead author of the study and a scientist at the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA), explained, “We’ve all heard that different carbohydrates can affect health differently, but we wanted to understand what they might mean for good health 30 years later. Our findings suggest that carbohydrate quality may be an important factor in healthy aging.”
The researchers analyzed data from the Nurses’ Health Study, which included information from over 47,000 women aged between 70 and 93 in 2016. They found that intakes of total carbohydrates, refined carbohydrates, high-quality carbohydrates from whole grains, fruits, vegetables, and legumes, dietary fiber, and dietary glycemic index were all linked to healthy aging outcomes.
Healthy aging was defined as the absence of major chronic diseases, cognitive and physical function impairments, and good mental health. The study found that participants with higher intakes of high-quality carbohydrates and dietary fiber had a 6-37% greater likelihood of healthy aging, while those with higher intakes of refined carbohydrates had lower odds of healthy aging.
Senior author Qi Sun noted, “Our results are consistent with other evidence linking consumption of fruits and vegetables, whole grains, and legumes with lower risks of chronic diseases. This study now shows the association with physical and cognitive function outcomes.”
The study did have limitations, as the population studied was mainly white health professionals. Future research will need to replicate these findings in more diverse cohorts. Additionally, more research is needed to understand the mechanisms linking dietary fiber and high-quality carbohydrates to healthy aging.
In conclusion, the study highlights the importance of making healthy food choices, such as consuming high-quality carbohydrates and dietary fiber, for promoting healthy aging. Understanding the impact of diet on aging can help individuals live healthier lives for longer. Further research in this area will continue to shed light on the connection between diet and quality of life in later years.
