More research on diet quality and longevity needed

Long-term improvementsTrusted Source in diet quality can greatly reduce the risk of chronic conditions such as obesity, heart disease, and type 2 diabetes, potentially leading to a longerTrusted Source and disease-freeTrusted Source lifespan.

This research highlights the role that specific foods, such as avocados, can play in diet improvement strategies.

According to Kiran Campbell, a registered dietitian not involved in the study, “[a]dding in one specific healthy food is a good start to a healthy diet.”

However, strategies for promoting adherence to dietary guidelines, improving diet quality, and promoting longevity may need to extend beyond specific food-based interventions.

“Relying solely on one or even a few foods would likely not give you enough varied nutrition to reduce the risk of chronic disease or extend longevity. A comprehensive pattern of eating that includes a wide range of nutrient-dense foods is essential for reducing the risk of chronic disease and living a long health[y] life.”

— Claire Rifkin, registered dietitian

Campbell agreed, suggesting that “[s]peaking with health professionals like registered dietitians can help to individualize a healthy meal plan that works long-term and includes a larger variety of healthy foods to help meet the dietary guidelines.”

Beyond an individual focus on diet quality, Rifkin stressed the importance of addressing systemic factors, including:

  • corporate marketing of unhealthy foods
  • lack of government incentives for healthier options
  • food inequities and insecurities

Such a transition is crucial for achieving significant and widespread improvements in diet quality and disease risk — increasing longevity across populations.