Carbs Aren’t the Enemy—Just Choose the Right Ones

Carbs have gotten a bad rap over the years.

Low-carb, keto, carnivore—these trendy diets have convinced millions to slash their carbohydrate intake in hopes of weight loss or better health.

But here’s the truth: carbs aren’t the problem. The type of carbs you eat matters far more than the amount.

And now, brand-new research gives us even more reason to ditch the carb fear—and focus on quality instead.

A large study just published in JAMA Network Open found that women who ate high-quality carbohydrates in midlife had significantly better odds of aging well. We’re talking lower risk of chronic disease, better brain function, physical vitality, and mental health—even into their 70s and beyond.

This prospective cohort study followed 47,513 women from the well-known Nurses’ Health Study over three decades. The women were around 48 years old when their diets were first assessed in the 1980s, and by 2014-2016, researchers evaluated their aging outcomes.

To be classified as “healthy agers,” participants had to be free from major diseases (like cancer or heart disease), maintain strong physical and cognitive function, and report good mental health.

Only 7.8% of the women met all the criteria. But those who did had a few things in common—including a diet rich in whole food carbohydrates.

Specifically:

• Every 10% increase in calories from high-quality carbs (like whole grains, fruits, vegetables, and legumes) was linked to 31% higher odds of healthy aging.
• Carbs from fruits, veggies, and whole grains showed the strongest benefits.
• Dietary fiber—especially from cereals, fruit, and vegetables—was also linked to better aging outcomes.
• Conversely, refined carbs (think white bread, sugary cereals, and pastries) were associated with a 13% lower chance of aging well.
• A high glycemic index and a high carb-to-fiber ratio (basically, more sugar and less fiber) were linked to poorer aging.

Let’s say that again: you don’t need to ditch carbs to age well. You just need to choose better ones.

Not all carbs are created equal. The best ones are minimally processed, rich in fiber, and slow to digest, helping regulate blood sugar, feed your gut, and support long-term health.

Focus on:

• Whole grains: oats, quinoa, barley, farro, brown rice
• Legumes: lentils, chickpeas, black beans
• Fresh fruits: especially berries, apples, citrus
• Vegetables: sweet potatoes, carrots, leafy greens, broccoli

Avoid or limit:

• Refined grains: white bread, white rice, pasta made with enriched flour
• Sugary snacks: cookies, cakes, pastries
• Highly processed carbs: sweetened cereals, granola bars, and low-fiber snack foods

In a world obsessed with cutting carbs, this study is a refreshing reminder that quality trumps quantity. Instead of fearing carbohydrates, we should be embracing the nutrient-dense, fiber-rich ones that fuel our bodies and brains.

It’s especially important for women approaching menopause, when hormonal changes can raise the risk of heart disease, insulin resistance, and other age-related health concerns.

This study suggests that what you eat in midlife may shape how you age later—and that making smarter carb choices can help you stay sharp, mobile, and resilient.

This isn’t about counting grams or banning bread. It’s about shifting your focus—from low-carb to slow carb. From restriction to real nourishment.

As we always say here at e-Alert: health isn’t about chasing trends. It’s about staying informed and making decisions that serve your body and your future.

And if that means adding more berries, beans, or brown rice to your plate? Your future self might just thank you.

To quality carbs,

Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team

Sources:

McGlade, E. L. (2025, May 16). High-Quality Carbohydrates and Dietary Fiber in Midlife Linked to Healthy Aging in Women. Medscape. https://www.medscape.com/viewarticle/high-quality-carbohydrates-and-dietary-fiber-midlife-linked-2025a1000cev