Americans aren’t coming close to meeting the government’s recommendations for whole grains, according to a new USDA study. Under the federal dietary guidelines, a 2,000-calorie diet would include 6 ounces of grains, with at least half being whole grains. But whole grain consumption barely budged from 1998 to 2018, rising from an average of 0.4 ounces per 1,000 calories to 0.43 ounces over the two decades, the study says. One bright spot: School food has become the most whole-grain-dense food source.