Wallace, Effects on coronary heart disease of increasing polyunsaturated fat in place of saturated fat: a systematic review and meta-analysis of randomized controlled trials. PLoS Med , Mensink, R. Am J Clin Nutr , Appel, L. JAMA , Department of Agriculture, U. Government Printing Office.
Dietary Guidelines for Americans, , Lichtenstein, A. Circulation , Institute, N. Population, — Siri-Tarino, P. Micha, R. Mozaffarian, Saturated fat and cardiometabolic risk factors, coronary heart disease, stroke, and diabetes: a fresh look at the evidence. Lipids , Managing your cholesterol plays a crucial role in keeping your heart healthy and warding off heart disease, which is the number one cause of death in the United States.
Watch your saturated fat intake, and get your fat from mostly unsaturated sources; these are among the best ways to keep your cholesterol in check. In fact, your body needs a small amount of this fat-like substance to function properly.
It's an essential component of cell membranes and plays a role in producing vitamin D and digestive acids. However, when too much cholesterol accumulates in the blood, it can lead to hardening of the arteries and eventually heart attack or stroke. Saturated fats in your diet raise bad cholesterol in the blood, making it healthiest to choose fat from unsaturated sources a majority of the time.
Fat is a source of essential fatty acids, which the body cannot make itself. Fat helps the body absorb vitamin A , vitamin D and vitamin E.
These vitamins are fat-soluble, which means they can only be absorbed with the help of fats. Any fat that's not used by your body's cells or turned into energy is converted into body fat. Likewise, unused carbohydrates and proteins are also converted into body fat. All types of fat are high in energy. A gram of fat, whether it's saturated or unsaturated, provides 9kcal 37kJ of energy compared with 4kcal 17kJ for carbohydrate and protein.
Most fats and oils contain both saturated and unsaturated fats in different proportions. As part of a healthy diet, you should try to cut down on foods and drinks that are high in saturated fats and trans fats and replace some of them with unsaturated fats. Most of them come from animal sources, including meat and dairy products, as well as some plant foods, such as palm oil and coconut oil.
Cholesterol is a fatty substance that's mostly made by the body in the liver. Eating too much saturated fats in your diet can raise "bad" LDL cholesterol in your blood , which can increase the risk of heart disease and stroke. Trans fats are found naturally at low levels in some foods, such as meat and dairy products. Snack on olives. Olives are high in healthy monounsaturated fats and make for a low-calorie snack.
Try them plain or make a tapenade for dipping. Dress your own salad. Commercial salad dressings are often high in unhealthy fat or added sugars. Create your own healthy dressings with olive, flaxseed, or sesame oils.
Department of Agriculture and U. Department of Health and Human Services. Dietary Guidelines for Americans, , 9th Edition. Dietary Guidelines Advisory Committee. Siri-Tarino, P. Current Atherosclerosis Reports, 12 6 , — Hu, F. Types of dietary fat and risk of coronary heart disease: A critical review.
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