Plant foods contain thousands of naturally occurring compounds, and researchers are increasingly interested in how some of them may relate to long-term health. A recent study from the Brazilian Longitudinal Study of Adult Health found that people with higher overall intakes of polyphenols had a lower risk of developing type 2 diabetes
The study was observational, so it cannot prove that polyphenols prevent diabetes. It also looked at overall intake rather than proving that any single food was responsible for the association. Still, the findings add to growing interest in diets rich in whole plant foods. Here are nine everyday ic health
Coffee was the largest tantial share of participants’ overall intake
Separate observational research has also repeatedly found associations between regular coffee consumption and a lower risk of type 2 diabetes. That doesn’t mean coffee is a preventive treatment, but it can be a significant
Yerba mate was another major contributor to polyphenol intake among participants in the Brazilian study
Popular throughout parts of South America, the caffeinated drink contains several types of plant compounds. Research into its potential metabolic effects is ongoing, so it is best viewed as one possible
Whole oranges provide flavonoids along with fiber, vitamins, and other nutrients
Choosing the whole fruit also preserves the fiber that is largely lost when oranges are turned into juice. That makes whole oranges a more useful addition to a diet focused on steady blood sugar and overall metabolic health
Blueberries, strawberries, raspberries, and other deeply colored berries are rich in polyphenols, including compounds called anthocyanins
Researchers have studied these plant compounds for their possible relationship with insulin sensitivity and metabolic health. Berries also provide fiber, making them an easy addition to an overall healthy eating pattern
Apples are an accessible
Much of an apple’s polyphenol content is concentrated in or near the peel, so eating the whole fruit offers benefits that apple juice does not. They also make a convenient alternative to highly processed snacks
Green tea contains catechins, a group of polyphenols that have attracted considerable scientific interest
Research into green tea and diabetes risk has produced mixed results, so it should not be treated as a preventive remedy. Still, unsweetened green tea can contribute polyphenols without the added sugars found in many other beverages
Nuts generally provide a combination of plant compounds, unsaturated fats, fiber, and protein
Although different varieties have different nutritional profiles, nuts are commonly included in dietary patterns associated with better metabolic and cardiovascular health. The biggest benefits are likely to come from the overall eating pattern rather than any single type of nut
Cocoa is naturally rich in flavanols, but that doesn’t turn every chocolate bar into a health food
Dark chocolate with a higher cocoa content generally contains more cocoa compounds than milk chocolate, though it can still be high in calories, sugar, and saturated fat. A modest portion can contribute polyphenols without pretending dessert is a diabetes treatment
Beans and lentils bring several advantages to the table at once
They contain fiber, plant protein, and a variety of polyphenols, while generally having a gentler effect on blood sugar than many refined carbohydrates. Regularly eating legumes is also consistent with the broader dietary patterns most strongly associated with long-term metabolic health
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