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