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By Sandee LaMotte, CNN

Updated 1602 GMT (0002 HKT) February 12, 2021

Researchers defined a "healthy diet" as one containing lots of fruits and vegetables, nuts, fish, moderate alcohol use and minimal red meat. Click through our gallery of superfoods for what to include in your healthy diet.
Photos: Fill your plate with superfoods
Researchers defined a "healthy diet" as one containing lots of fruits and vegetables, nuts, fish, moderate alcohol use and minimal red meat. Click through our gallery of superfoods for what to include in your healthy diet.
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A superfood is easy to find in the grocery store, contains nutrients that are known to enhance longevity and has other health benefits that are backed by peer-reviewed, scientific studies. Broccoli makes the list because it's one of nature's most nutrient-dense foods, with only 30 calories per cup. That means you get a ton of hunger-curbing fiber and polyphenols -- antioxidants that detoxify cell-damaging chemicals in your body -- with each serving.
Photos: Fill your plate with superfoods
A superfood is easy to find in the grocery store, contains nutrients that are known to enhance longevity and has other health benefits that are backed by peer-reviewed, scientific studies. Broccoli makes the list because it's one of nature's most nutrient-dense foods, with only 30 calories per cup. That means you get a ton of hunger-curbing fiber and polyphenols -- antioxidants that detoxify cell-dam