prov:value
| - Based on questionnaires filled out by the participants, researchers tracked their intake of fruits and vegetables by color: green (broccoli, kale, spinach and other leafy greens), orange/yellow (citrus fruits, carrots, peaches), red/purple (tomatoes, beets, cherries) and white (apples, including applesauce, pears, bananas, cauliflower, cucumber, chicory).
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