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nutrition × 684medical-science × 117
biology × 39
milk × 36
physiology × 31
sugar × 25
cancer × 23
nutritional-supplements × 21
safety × 19
chemistry × 19
water × 18
fruit × 15
environmental-health × 14
united-states × 13
zoology × 13
vegetarianism × 13
alternative-medicine × 12
natural-remedies × 12
meat × 12
consumer-products × 11
dentistry × 11
toxicology × 11
economics × 10
alcohol × 10
organic-food × 10