Researchers analyzed the diets of 43,996 U.S. adults in 1999 and then again in 2016. Over this time period, people got 1.23% more calories from high quality carbs (whole grains), 0.38% more calories from plant protein, 0.65% more calories from polyunsaturated fats, and 3.25% fewer calories from low quality carbohydrates (sugar and refined grains). Unfortunately, calories from saturated fat increased by 0.36%, and the general diet is still far from ideal, with 42% of calories still coming from low quality carbs, and saturated fat remaining above 10% of energy intake.