Mom and Dad always told you to eat your vegetables and fruits, and research has shown their association with reducing cancer and chronic disease. But which vegetables are best? Fads come and go as quickly as that kale in your fridge.Now researchers at William Paterson College in New Jersey have come up with a list of 41 powerhouse vegetables and fruits ranked by the amounts of 17 critical nutrients they contain, like fiber; potassium; protein; calcium; folate; and vitamins B12, A, and D. Watercress tops the list followed by Chinese cabbage, chard, beet greens, spinach, and chicory. Fruits, though, didn’t turn out to be terribly powerful. Highest on the list was red pepper (who knew it was a fruit?), just below dandelion greens, followed by pumpkin, tomato and lemon.