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In a first of its kind study, Jennifer Di Noia, PhD, an associate professor of sociology at William Paterson University in Wayne, New Jersey ranked fruits and vegetables by their nutritional values. These "powerhouse fruits and vegetables" were ranked and scored by the amount of 17 critical nutrients they contain, including fiber, potassium, protein, calcium folate, vitamin B12, vitamin A, vitamin D and other nutrients.
The study developed a definition for "powerhouse fruits and vegetables" as "foods providing, on average, 10 percent or more daily value per 100 kilocalories of the 17 qualifying nutrients." The objective of the research was to help consumers choose more nutrient-packed foods. The following is a list of the top 10 powerhouse fruits and vegetables:
1. Watercress (score: 100)
Photo credit: Shutterstock
2. Chinese Cabbage (score: 91.99)
3. Chard (score: 89.27)
4. Beet greens (score: 87.08)
5. Spinach (score: 86.43)
6. Chicory (score 73.36)
Photo credit: Shutterstock
7. Leaf lettuce (score: 70.73)
8. Parsley (score: 65.59)
9. Romaine lettuce (score: 63.48)
10. Collard greens (score: 62.49)
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