According to Gram Research analysis, a 2026 cross-sectional study of 5,293 American adults found that people with higher food inflammation scores were significantly more likely to have age-related macular degeneration (AMD), with each point increase on the inflammation scale raising AMD odds by about 4%. However, researchers emphasize this is early evidence—the study shows an association but doesn’t prove that inflammatory foods cause AMD, and much of the connection was explained by age itself. Prospective studies following people over time are needed before recommending dietary changes specifically to prevent this eye disease.
A new study of over 5,000 American adults found that people who eat foods that cause more inflammation in the body are more likely to develop age-related macular degeneration (AMD), a common eye disease that affects vision in older adults. Researchers used a new scoring system called FISI to measure how inflammatory a person’s diet is. The study found that people with higher inflammation scores from their food choices had significantly higher rates of AMD. However, because this was a snapshot study rather than following people over time, researchers say more research is needed before recommending specific dietary changes to prevent this eye disease.
Key Statistics
A 2026 cross-sectional study of 5,293 American adults found that people with higher food inflammation scores had significantly higher odds of age-related macular degeneration, with each one-point increase on the FISI scale associated with a 4% increase in AMD odds.
Among 5,293 U.S. adults aged 40 and older in a 2026 NHANES analysis, 421 participants (about 8%) had age-related macular degeneration, and those with AMD had significantly higher food inflammation scores than those without the disease.
A 2026 analysis of national health data found that the relationship between dietary inflammation and age-related macular degeneration was consistent across different demographic groups, suggesting the connection applies broadly to various populations.
The Quick Take
- What they studied: Whether eating foods that cause inflammation in your body increases your risk of developing AMD, a disease that damages the part of your eye responsible for sharp, central vision.
- Who participated: 5,293 American adults aged 40 and older, including 421 people who had already been diagnosed with AMD. The group was representative of the general U.S. population.
- Key finding: People with higher food inflammation scores were significantly more likely to have AMD. For every point increase on the inflammation score, the odds of having AMD increased by about 4%.
- What it means for you: Eating less inflammatory foods might help protect your eyes as you age, but this is still early research. Talk to your doctor before making major dietary changes specifically to prevent AMD. This study suggests a connection but doesn’t prove that changing your diet will prevent the disease.
The Research Details
Researchers looked at data from the National Health and Nutrition Examination Survey (NHANES), a large government study that tracks the health of Americans. They examined information from over 5,000 adults aged 40 and older, comparing those with AMD to those without the disease. They used a new measurement tool called the Food Inflammation Scores of individuals (FISI) to calculate how inflammatory each person’s diet was based on what they reported eating. The researchers then used statistical analysis to see if people with higher inflammation scores were more likely to have AMD.
This research approach is important because it uses real-world data from a nationally representative sample, meaning the results likely apply to many Americans. The FISI scoring system is new and specifically designed to measure the inflammatory potential of foods, which is more precise than older methods. Understanding the connection between diet and eye disease could eventually lead to simple dietary recommendations to prevent vision loss.
This study has several strengths: it included a large, diverse sample of Americans, used a newly validated measurement tool, and controlled for other factors that might affect AMD risk. However, the study has important limitations. It’s a snapshot in time rather than following people over years, so we can’t prove that diet causes AMD. The researchers themselves noted that much of the connection between diet inflammation and AMD was explained by age, suggesting age may be the real driver. The study is hypothesis-generating, meaning it suggests ideas for future research rather than providing definitive answers.
What the Results Show
The study found that people with AMD had significantly higher food inflammation scores than people without AMD. When researchers analyzed the data statistically, they found a clear positive relationship: higher inflammation scores were associated with higher odds of having AMD. Specifically, for each one-point increase on the FISI scale, the odds of having AMD increased by about 4%. This relationship held true even after researchers adjusted for other factors like age, sex, and other health conditions.
The researchers also found that age played an important role in this relationship. The data suggested that age was connected to both higher food inflammation scores and higher AMD risk. In other words, older people tended to eat more inflammatory foods and were more likely to have AMD, which explains some of the connection between diet and eye disease.
When the researchers looked at specific groups of people (by age, sex, race, and other characteristics), the relationship between food inflammation and AMD remained consistent across most subgroups, suggesting this finding applies broadly to different populations.
The study found no significant interactions between food inflammation scores and other variables like age, sex, or race, meaning the relationship between diet inflammation and AMD didn’t work differently in different groups. This suggests that the connection between what you eat and AMD risk is fairly consistent across different types of people.
This research builds on earlier studies showing that inflammation plays a role in AMD development. Previous research has linked specific nutrients and dietary patterns to AMD risk, but this is one of the first studies to use the new FISI scoring system to measure overall dietary inflammation. The findings align with the general understanding that chronic inflammation contributes to age-related diseases, including eye diseases. However, researchers note that this study doesn’t prove diet causes AMD the way previous studies have suggested—it only shows an association.
The biggest limitation is that this study is a snapshot, not a follow-up study. Researchers looked at people at one point in time and found that those with AMD had higher inflammation scores, but they didn’t follow people over years to see if high inflammation scores actually led to AMD developing. This means we can’t be sure if inflammatory foods cause AMD or if people with AMD simply tend to eat more inflammatory foods. Additionally, the researchers found that much of the connection between diet inflammation and AMD was explained by age, suggesting age might be the real factor. The study also relied on people’s memory of what they ate, which can be inaccurate. Finally, because this is a cross-sectional study, the researchers themselves recommend that prospective studies (following people over time) are needed before recommending dietary changes specifically to prevent AMD.
The Bottom Line
Based on this research, there is suggestive but not conclusive evidence that reducing inflammatory foods in your diet may help protect your eyes as you age. However, the researchers specifically state this is not yet strong enough evidence to recommend FISI-guided dietary changes as a primary prevention strategy for AMD. If you’re concerned about AMD risk, focus on proven strategies: eat a diet rich in leafy greens, fish, and antioxidants; protect your eyes from UV light; maintain a healthy weight; don’t smoke; and get regular eye exams. Talk to your eye doctor about your personal AMD risk.
This research is most relevant to adults over 40, especially those with a family history of AMD or other risk factors for the disease. People already eating a generally healthy diet with anti-inflammatory foods should feel reassured. This research is less immediately relevant to younger people, though the habits you develop now may affect your eye health later. Anyone with existing AMD should discuss dietary changes with their eye doctor before making major changes.
If dietary changes do help prevent AMD, the benefits would likely take years to become apparent, since AMD typically develops slowly over decades. This is not a quick-fix intervention. You wouldn’t expect to see changes in your vision or eye health within weeks or months of changing your diet.
Frequently Asked Questions
Does eating inflammatory foods cause macular degeneration?
This study found an association between high-inflammation diets and AMD, but it doesn’t prove cause-and-effect. The research is a snapshot rather than following people over time. Much of the connection was explained by age itself. Researchers say more long-term studies are needed before concluding that inflammatory foods cause AMD.
What foods should I avoid to protect my eyes from AMD?
This study doesn’t identify specific foods to avoid, but generally, reduce processed foods, added sugars, refined grains, and unhealthy oils. Focus on anti-inflammatory foods like leafy greens, fatty fish, nuts, berries, and whole grains. Talk to your eye doctor about personalized dietary recommendations for AMD prevention.
Can changing my diet reverse macular degeneration?
This study doesn’t address whether diet changes can reverse existing AMD. It only suggests that a less inflammatory diet may be associated with lower AMD risk. If you have AMD, work with your eye doctor on proven treatments and management strategies rather than relying on diet alone.
At what age should I start worrying about AMD and diet?
This study included adults 40 and older. AMD typically develops in people over 50, but the dietary habits you develop now may affect your eye health later. Starting to eat an anti-inflammatory diet in your 40s or earlier is a good preventive strategy for overall health, including eye health.
Is this study strong enough evidence to change my diet?
The researchers themselves say this is ‘hypothesis-generating’ evidence, not strong enough to recommend diet changes specifically for AMD prevention. However, eating an anti-inflammatory diet has many other proven health benefits, so it’s worth considering for overall wellness, not just eye health.
Want to Apply This Research?
- Track your daily food inflammation score by logging meals and noting which foods are high in pro-inflammatory ingredients (like added sugars, refined grains, and processed oils) versus anti-inflammatory foods (like leafy greens, fatty fish, nuts, and berries). Monitor trends weekly to see if you’re reducing overall dietary inflammation.
- Replace one high-inflammation food choice per day with an anti-inflammatory alternative—for example, swap white bread for whole grain, or add a serving of leafy greens to lunch. Start with small, sustainable changes rather than overhauling your entire diet at once.
- Use the app to track your FISI score over months and correlate it with other health markers you’re monitoring. Set a goal to gradually lower your inflammation score by 10-15% over three months. Schedule annual eye exams and note any changes in vision, then review your dietary patterns to see if improvements in diet coincided with stable or improved eye health.
This research shows an association between dietary inflammation and AMD but does not prove that changing your diet will prevent or treat macular degeneration. The study is cross-sectional and hypothesis-generating; prospective studies are needed for stronger evidence. If you have AMD or are concerned about developing it, consult with your eye care professional before making significant dietary changes. This information is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified eye care provider with any questions you may have regarding your eye health.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.