according to the USDA, three to five servings per day nutritional guidelines Build a Healthy Base - (Dietary Guidelines for Americans) 19 servings of food a day Build a Healthy Base - (Dietary Guidelines for Americans) USDA's Food and Nutrition Information Center three to five servings per day three to five servings per day Build a Healthy Base - (Dietary Guidelines for Americans) Dietary Guidelines USDA Food Pyramid says eat more whole grains. Health.gov: Build A Healthy Base 19 servings of food a day according to the USDA, 19 servings of food a day USDA guidelines Health.gov: Dietary Guidelines: Build a Healthy Base USDA's Food and Nutrition Information Center