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The U.S. Department of Agriculture recommends children ages 9 and older and adults consume at least 3 cups from the dairy group each day. Active teenagers with high calorie requirements of 3,000 calories or more may require 4 cups from the dairy group each day.
According to USDA guidelines, moderately-active women and men between the ages of 19 and 50 should consume 2 1/2 and 3 cups of vegetables per day, respectively, while adults over 50 should reduce their daily intake by 1/2 cup.