Wednesday, April 1, 2026

Healthy Fat for Healthy Aging Update



The 2025-2030 Dietary Guidelines is continue with recommendations to limit saturated fatty acids (SFA) to <10% of daily calories. They advise consuming "healthy fats" from red meat, whole-fat dairy, eggs, omega-3-rich seafood, nuts, seeds, olives, avocados and olive oil, with butter and beef tallow as options.

Fats and oils are part of a healthy diet and play many important roles in the body. Fat provides energy and is a carrier of essential nutrients such as vitamins A, D, E, K, and carotenoids.  ​Since fat is an important part of a healthy diet, rather than adopting a low-fat diet, it’s more important to focus on eating more beneficial “good” fats and limiting harmful “bad” fats.


Eat healthy fat for healthy aging

For decades, doctors, nutritionists, and health authorities have told us that a diet high in saturated fats raises blood cholesterol and increases the risk of heart disease and stroke. However, the association of dietary fat intake,  cholesterol level, and cardiovascular diseases remains controversial and more studies are needed. We've also learned that eating healthy fats (i.e., avocado, olive oil, and nuts) may help to increase metabolism and burning belly fat. Healthy fats also fill up longer to reduce hunger. 

Do you have Fat phobia? The fact is that the low fat campaign over the years has not resulted in healthy outcome as expected. The association of fat with heart disease is more controversial and complex. Overall, cutting fat intake is unlikely to reduce risk of heart disease.  Some recent studies have made headlines by casting doubt on those claims, concluding that people who eat lots of saturated fat do not experience more cardiovascular disease than those who eat less. Furthermore, high cholesterol in late life may mean better brain health, as found from the Framingham Heart Study. ​For older adults, insufficient fat intake may decrease cognitive functions and increase the risk or death. Malnutrition is also a silent threat to well-being in late life.


Low-fat is not a "fits all" solution.  Healthy fat plays important role in late life for brain health and overall wellbeing.  The guidance for general public is to avoid the trans fats, limit the saturated fats, and replace with essential polyunsaturated fats. Healthy eating is to be adapted for individual needs for healthy aging.