Research shows that older adults with fewer natural teeth are more than twice as likely to eat inflammatory foods compared to those with a full set of teeth. A 2026 cross-sectional study of 1,075 adults aged 60 and older found that people with only 1 to 10 natural teeth had significantly higher odds of following a pro-inflammatory diet. According to Gram Research analysis, this connection suggests that tooth loss may limit people’s ability to chew healthy foods like vegetables and nuts, forcing them toward softer, more processed foods that increase inflammation in the body.
A new study of over 1,000 older adults found that people who keep more of their natural teeth tend to eat foods that cause less inflammation in their bodies. Inflammation is when your body’s immune system overreacts, and it can lead to serious health problems like heart disease and diabetes. Researchers discovered that older adults with fewer teeth were more likely to eat foods that increase inflammation, possibly because missing teeth make it harder to chew certain healthy foods like fruits, vegetables, and nuts. According to Gram Research analysis, this connection suggests that taking care of your teeth isn’t just about having a nice smile, it’s also about maintaining a healthy diet as you age.
Key Statistics
A 2026 cross-sectional study of 1,075 older adults found that those with 1 to 10 natural teeth had 2.19 times higher odds of eating a pro-inflammatory diet compared to those with 21 to 28 teeth.
Research published in Frontiers in Aging showed that older adults with fewer natural teeth were significantly more likely to belong to a high-inflammatory dietary category, with statistical significance at p-value less than 0.001.
Among 1,075 adults aged 60 and older, tooth retention was closely associated with diet quality, with people retaining more teeth showing younger age, higher education, lower smoking rates, and better cognitive function.
The Quick Take
- What they studied: Whether older adults who have more natural teeth eat less inflammatory foods compared to those with fewer teeth or no teeth
- Who participated: 1,075 adults aged 60 and older from various backgrounds. Researchers examined how many natural teeth each person had and what they typically ate
- Key finding: Older adults with only 1 to 10 natural teeth were more than twice as likely to eat inflammatory foods compared to those with 21 to 28 teeth (a 2.19 times higher odds)
- What it means for you: Keeping your natural teeth as you age may help you maintain a healthier diet that reduces inflammation. If you’re missing teeth, talk to your dentist about options like implants or dentures that could help you eat a wider variety of healthy foods
The Research Details
Researchers studied 1,075 people aged 60 and older in a single snapshot in time, rather than following them over years. This type of study is called cross-sectional. Each person had their teeth counted during an oral exam, and researchers asked them detailed questions about what they ate over the past year using a food-frequency questionnaire. The researchers then calculated an inflammatory score for each person’s diet based on which foods they ate most often.
The study categorized people into groups based on tooth count: those with 21 to 28 natural teeth (a full set), those with 11 to 20 teeth, those with 1 to 10 teeth, and those with no natural teeth. Researchers then looked at whether people in each group tended to eat more or less inflammatory foods. They also accounted for other factors that might affect diet, like age, education, smoking, and mental sharpness.
This research approach is important because it shows a real-world connection between oral health and eating patterns in older adults. By studying actual people and their real diets rather than doing lab experiments, researchers can see how tooth loss affects food choices in everyday life. Understanding this connection helps doctors and dentists recognize that oral health is connected to overall nutrition and health, not just teeth and gums.
This study has several strengths: it included over 1,000 participants, which is a solid sample size, and researchers carefully adjusted their analysis for factors that could confuse the results, like age and smoking. However, because this is a cross-sectional study, it shows a connection between teeth and diet but cannot prove that losing teeth causes people to eat worse foods. It’s also possible that other unmeasured factors influenced both tooth retention and food choices. The study was published in a peer-reviewed journal, meaning other experts reviewed the work before publication.
What the Results Show
The main finding was striking: older adults with only 1 to 10 natural teeth had 2.19 times higher odds of eating a more inflammatory diet compared to those with a full set of 21 to 28 teeth. This difference was statistically significant, meaning it’s very unlikely to have happened by chance. People with no natural teeth also showed higher odds of eating inflammatory foods, though the study didn’t report the exact number for that group.
The researchers also found that people with more teeth tended to be younger, have more education, be less likely to smoke, and score higher on mental sharpness tests. These factors all tend to be associated with healthier eating habits overall. Even after accounting for these differences, the connection between tooth retention and a less inflammatory diet remained strong and significant.
The study suggests that the physical ability to chew different foods plays an important role in what people choose to eat. When people have fewer teeth, they may avoid harder foods like raw vegetables, nuts, and whole grains, which are often anti-inflammatory. Instead, they may eat softer, more processed foods that tend to be more inflammatory.
The study also revealed that tooth retention was associated with several other health markers. People with more teeth had higher scores on cognitive tests, suggesting better mental function. They were also less likely to be smokers and had higher educational levels. These findings suggest that tooth retention may be a marker of overall health and healthy lifestyle choices, not just a factor affecting diet independently.
This research builds on earlier studies showing that tooth loss affects diet quality in older adults. Previous research has shown that people with fewer teeth eat less fiber and fewer fruits and vegetables. This new study adds an important piece by specifically linking tooth loss to inflammatory foods, which helps explain one way that poor oral health might contribute to chronic diseases like heart disease and diabetes. The findings support the growing recognition that oral health is a key part of overall health in aging.
This study shows a connection between teeth and diet, but it cannot prove that losing teeth causes people to eat worse. It’s a snapshot in time, so researchers couldn’t follow people to see if losing teeth actually changed their eating habits. The study also relied on people remembering what they ate, which can be inaccurate. Additionally, the study didn’t measure whether people with fewer teeth actually had difficulty chewing, so we don’t know if physical difficulty or food preferences drove the dietary differences. Finally, the study population may not represent all older adults, as different regions and countries have different patterns of tooth loss and eating habits.
The Bottom Line
If you’re an older adult, prioritize dental care and tooth retention as part of your overall health strategy. Work with your dentist to prevent tooth loss through regular cleanings, good brushing habits, and treating cavities promptly. If you’ve already lost teeth, consider dental implants or well-fitting dentures so you can continue eating a variety of healthy foods. Moderate confidence: the evidence strongly suggests this connection, but more research is needed to prove that improving dental health directly improves diet quality.
This research is most relevant to adults over 60, their families, and healthcare providers. Dentists should recognize that tooth loss affects nutrition. Doctors treating chronic inflammation-related diseases should ask about oral health. Younger adults should take note as motivation to maintain their teeth. This research is less directly applicable to people with full sets of healthy teeth, though it reinforces the importance of prevention.
If you improve your dental situation through implants or dentures, you may be able to expand your diet within weeks to months. However, changing your overall inflammatory status through diet typically takes 3 to 6 months to show measurable improvements in inflammation markers. Long-term benefits for disease prevention may take years to become apparent.
Frequently Asked Questions
Does losing teeth make you eat unhealthier foods?
Research suggests a strong connection: older adults with fewer teeth are more than twice as likely to eat inflammatory foods. While tooth loss may not directly cause unhealthy eating, it likely makes it harder to chew nutritious foods like vegetables and nuts, pushing people toward softer, processed options.
Can dentures or implants help me eat a healthier diet?
Yes, potentially. If missing teeth are limiting your food choices, dentures or implants may help you eat a wider variety of healthy foods. This could reduce inflammation in your body, though you’ll need to actively choose anti-inflammatory foods once you can chew them.
What inflammatory foods should older adults avoid?
Foods that increase inflammation include processed meats, refined grains, sugary drinks, and fried foods. Anti-inflammatory foods include fatty fish, berries, leafy greens, nuts, and whole grains. If chewing is difficult, consider softer versions like cooked vegetables, nut butters, and smoothies.
How quickly will improving my diet reduce inflammation?
Most people notice improvements in inflammation markers within 3 to 6 months of eating a consistently anti-inflammatory diet. You may feel better, have more energy, or experience less joint pain within weeks, but measurable biological changes typically take longer.
Is tooth loss just a normal part of aging?
Tooth loss is common but not inevitable. With good oral hygiene, regular dental care, and proper nutrition, many people keep most or all their natural teeth into old age. Preventing tooth loss is important for maintaining both oral health and overall nutrition.
Want to Apply This Research?
- Log the number of different food groups you eat each day, particularly hard-to-chew foods like raw vegetables, nuts, and whole grains. Track this weekly to see if you’re maintaining dietary variety. Also note any chewing difficulties or dental issues that might be limiting your food choices.
- If you have dental issues, set a reminder to schedule a dental appointment. If you wear dentures, practice eating a wider variety of foods and log which new foods you try. Challenge yourself to add one new anti-inflammatory food to your diet each week, such as berries, leafy greens, or fatty fish.
- Monthly, review your food variety score and note any changes in your ability to eat different foods. Track any dental work or changes in your oral health. Over 3 to 6 months, monitor whether your diet has become less inflammatory by noting improvements in energy levels, joint pain, or digestive health. Share this data with your doctor or dentist at annual checkups.
This research shows an association between tooth retention and less inflammatory diets in older adults, but does not prove that tooth loss causes unhealthy eating. Individual results vary based on many factors including overall health, medications, and personal food preferences. Before making significant changes to your diet or dental care, consult with your doctor or dentist. This information is for educational purposes and should not replace professional medical or dental advice. If you have chronic health conditions or take medications that affect nutrition, work with a healthcare provider before making major dietary changes.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.