How Diet Can Impact Aging and Chronic Disease Risk
Imagine two people in their 70s. Both are active, live independently and enjoy life. But over the next 15 years, one of them develops two or three chronic illnesses – heart disease, diabetes, depression – while the other remains relatively healthy. What made the difference?
According to a new study conducted by the Aging Research Center at the Karolinska Institutet in Sweden, diet may be a key factor in determining the pace of aging and the development of chronic diseases.
The study followed more than 2,400 older Swedish adults for 15 years and found that individuals who consistently ate a healthy diet developed chronic diseases more slowly compared to those whose diets were considered more inflammatory. Inflammatory diets, characterized by high consumption of processed meats, refined grains, and sugary drinks, are known to promote low-grade chronic inflammation in the body.
Having multiple health conditions simultaneously is a significant challenge for older individuals, as it increases the risk of disability, hospitalization, and premature death. The study revealed that diet quality not only influences the prevention of individual diseases but also impacts the overall pace of biological aging.
The research examined four well-known dietary patterns, including the Mind diet, the Alternative Healthy Eating Index, the Mediterranean diet, and a diet high in inflammatory foods. The findings showed that individuals following healthier dietary patterns experienced slower disease accumulation, particularly in terms of cardiovascular and psychiatric conditions such as heart failure, stroke, depression, and dementia.
While the study did not find a clear link between diet and musculoskeletal diseases like arthritis or osteoporosis, the benefits of healthy eating were more pronounced in women and older participants, indicating that dietary changes can have a positive impact at any age.
Healthy diets, rich in vegetables, fruits, whole grains, and healthy fats, have been shown to reduce inflammation in the body and support immune function, muscle mass, and cognitive health, contributing to healthier aging outcomes.
Although diet is just one piece of the puzzle in healthy aging, alongside factors like physical activity, social connections, and access to healthcare, improving diet quality remains a simple and accessible way for older adults to live longer, healthier lives.
By prioritizing a diet rich in plant-based foods, healthy fats, and lean proteins while limiting consumption of processed and sugary foods, older adults can positively impact their overall health and well-being. Making small changes in diet can lead to significant improvements in how individuals experience aging and reduce the risk of chronic diseases.
Adrián Carballo Casla, Postdoctoral Researcher in Geriatric Epidemiology, Karolinska Institutet; Amaia Calderón-Larrañaga, Associate Professor at the Aging Research Center, Karolinska Institutet; David Abbad Gomez, PhD Candidate, Department of Epidemiology and Evaluation, Hospital del Mar Research Institute, Barcelona
This article is republished from The Conversation under a Creative Commons license. Read the original article.
