Final answer:
According to the Dietary Guidelines for Americans, the maximum percentage of calories in a person's diet that should come from fat is 30%.
Step-by-step explanation:
The maximum percentage of calories in a person's diet that should come from fat, according to the Dietary Guidelines for Americans, is 30%.
The American Heart Association also recommends that 30% or less of your daily calories come from fat, with under 10% of that from saturated fat.
For example, if a person consumes 2000 calories a day, the recommended amount of fat would be 65 grams, which is equivalent to 33% of the total calories in the diet.