This High-Fiber Carb May Boost Longevity, Study Finds

The Surprising Carb That May Help You Live Longer
For years, carbohydrates have been misunderstood and often labeled as the enemy of a healthy diet. But new research is challenging that belief—especially when it comes to high-fiber carbs. A recent study suggests that these carbs may actually support healthy aging and increase your chances of living a longer life.
Instead of avoiding carbs altogether, experts say we should focus on the quality of the carbs we eat. Whole grains, fruits, vegetables, beans, and legumes are rich in fiber and packed with health benefits that go far beyond just energy.
What the Research Reveals About Carbs and Aging
A new study published in JAMA Network Open followed over 47,000 women starting in the 1980s. Researchers tracked their diets and health outcomes over a 30-year period. They found that women who ate more high-quality carbohydrates had a higher chance of reaching age 70 in good health—without major chronic illnesses or memory issues.
On the other hand, women who consumed more refined carbs—like white bread and added sugars—were less likely to age healthfully.
“We’ve all heard that not all carbs are equal,” said lead author Andres Ardisson Korat. “But our study shows that the type of carbohydrate you eat may affect your long-term health more than we thought.”
Why Fiber Is the Real MVP
According to registered dietitian Abby Chan, fiber plays a central role in almost every area of health. “From digestion and metabolism to heart and brain health, fiber is always a key factor,” she explained.
Fiber helps maintain regular bowel movements, supports a healthy gut microbiome, and may lower the risk of colon cancer and heart disease. Plus, it’s found in foods that also deliver vital nutrients like B vitamins and iron.
Despite its importance, fewer than 10% of Americans meet the recommended daily intake of fiber. That’s just 14 grams per 1,000 calories—an amount most people fall short of.
Small Changes Make a Big Impact
Chan recommends shifting your mindset from restriction to inclusion. Instead of thinking about what to cut out, focus on what you can add. A few simple tweaks could include:
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Adding fruit to your breakfast
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Choosing a whole grain like brown rice or quinoa at dinner
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Snacking on veggies with hummus or a handful of nuts
Registered dietitian Cary Kreutzer agrees. She says these small steps can lead to major health improvements, especially if you stick with them over time. “It’s never too late to make a change,” she said.
Limitations of the Study — And What It Still Tells Us
Although the research is promising, there are some limitations. The study focused on mostly white, well-educated women, so the results may not apply to everyone. It also shows a correlation, not a direct cause-and-effect relationship.
Still, the message is clear: Fiber matters, and getting more of it through whole, plant-based foods could add healthy years to your life.
Source: The Huff Post
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