The U.S. government's historical recommendation for fat intake was 30% of total calories, with 10% each from saturated, monounsaturated, and polyunsaturated fats.

“Oddly, the U.S. government used to recommend, and they used to dish out this recommendation, of your fat intake, a third of it... So, the government has always been into low fat, so 30% fat. 10% should be saturated. 10% should be monounsaturated. 10% should be polyunsaturated.”