By Karen Schriefer
Understanding the research. Building healthier habits.
What the research says about dementia risk—and how to apply it in everyday life.
Research published in the American Journal of Clinical Nutrition found that eating more fruits and vegetables—especially leafy green vegetables—was associated with a lower risk of dementia. In this first Nutrition Insights article, we'll explore what the research found and, more importantly, how to apply those findings through simple, everyday habits.
Introduction
It seems like every week there's a new nutrition headline making the rounds. One study praises a particular food, while another appears to say something completely different. It can be difficult to know what the research actually means—or how it applies to the meals we prepare every day.
That's why I created Nutrition Insights.
Each month, I'll take a closer look at research related to whole-food, plant-based eating and translate it into practical ideas you can use in everyday life. My goal isn't to oversimplify the science or make exaggerated claims. Instead, it's to help bridge the gap between research and real-life meals.
This month's Nutrition Insights explores research published in the American Journal of Clinical Nutrition that examined the relationship between fruit and vegetable intake and dementia risk. I first learned about this study through Dr. Joel Fuhrman's research summary, and the findings were especially encouraging when it came to leafy green vegetables.
Let's take a closer look at what the research found—and how you can put it into practice.
🎥 Watch the 14-Second Video Summary
If you'd rather watch first, here's a quick overview of the research. Prefer reading? The key findings and practical takeaways are summarized below.
Research Summary
Eating more fruits and vegetables was associated with a lower risk of dementia.
Researchers found that people who ate the most fruits and vegetables had roughly a 20% lower risk of developing dementia than those who ate the least. This finding was observed across the study population, even after accounting for other factors that can influence brain health.
Leafy green vegetables stood out.
Among all the fruits and vegetables studied, leafy green vegetables showed the strongest association with a lower risk of dementia. Researchers found that each additional daily serving of leafy green vegetables was associated with approximately an 18% lower risk of dementia, making them the only food group that consistently stood out on its own.
What This Means
It's important to remember that this was an observational study, meaning it found an association rather than proving cause and effect. Eating more leafy greens alone won't prevent dementia, and no single food can guarantee better brain health.
However, these findings add to a growing body of research suggesting that diets rich in fruits and vegetables—especially leafy green vegetables—may help support healthy brain aging as part of an overall healthy lifestyle.
Rather than focusing on one "superfood," the takeaway is to build everyday eating habits that include a variety of fruits and vegetables on a regular basis. That's a practical approach supported not only by this study, but by decades of nutrition research.
From Research to Real Life
One of the things I enjoy most about nutrition research is discovering practical ways to apply it in everyday life. Here are five simple ideas for adding more leafy greens to your everyday meals.
🥣 Stir leafy greens into soups.
🥗 Build salads around a variety of greens.
🥤 Blend spinach into smoothies.
🍚 Add greens to grain bowls.
🌯 Tuck greens into wraps and sandwiches.
Small habits, repeated consistently over time, can make healthy eating feel both simple and sustainable.
Recipes to Get You Started
Looking for simple ways to put this research into practice? These resources will help you enjoy more fruits and vegetables while making healthy eating easier throughout the week.
🥗 Salad of the Week
Each Salad of the Week includes a large, nutrient-dense salad along with homemade dressings, optional soups or other simple recipes, prep-ahead tips, and ideas to help you enjoy more fruits and vegetables throughout the week.
🌱 Daily Salad Formula
Learn the simple framework I use to build satisfying salads with leafy greens, colorful vegetables, fruit, beans, healthy fats, and homemade dressings.
Read the Daily Salad Formula →
Sources
Research Summary Based On:
Dr. Joel Fuhrman's summary of research published in the American Journal of Clinical Nutrition (2026).
Huang L, Hailili G, et al. Association of vegetable and fruit intake with risk of dementia: 3 prospective studies and meta-analysis of cohort studies. The American Journal of Clinical Nutrition. 2026. https://doi.org/10.1016/j.ajcnut.2026.101421
Final Thoughts
What I appreciate most about nutrition research is that it often reinforces simple habits rather than promoting quick fixes. While no single food can prevent dementia or guarantee good health, studies like this remind us that our everyday choices matter.
Eating more fruits and vegetables—and making leafy greens a regular part of your meals—is one practical habit that can support long-term health. It's not about perfection. It's about making small, sustainable choices that add up over time.
That's exactly what Nutrition Insights is all about: understanding the research and turning it into practical habits you can use every day.
Continue Your Journey
Looking for even more whole-food, plant-based recipes and meal ideas? Download my free Tower-to-Table Recipe Guide. It includes simple recipes, meal inspiration, and practical ideas to help you enjoy more of the foods you grow and the ingredients you bring home.
👉 Get the Free Tower-to-Table Recipe Guide
Here's to simple, nourishing meals — one bowl at a time 🌱