The American Heart Association suggests that 8-10 percent of daily calories should come from polyunsaturated fats, and there is evidence that eating more polyunsaturated fat—up to 15 percent of daily calories—in place of saturated fat can lower heart disease risk.
fat, any substance of plant or animal origin that is nonvolatile, insoluble in water, and oily or greasy to the touch. Together with animal and vegetable oils, fats comprise one of the three principal classes of foodstuffs, the others being proteins and carbohydrates.
Not all fat is created equal. Find out which type of fat to choose — and which to avoid — for good health.
When it comes to health, not all fats are equal. This article looks at the sources and types of fat, their effects on the body, and how much to add to the diet.