Fat can help you slim down

The body needs three macro-nutrients for energy: Carbohydrates, protein, and fat. A gram of fat packs more than twice the energy of a gram of the other two. “When you don’t have any fat in your diet its like you don’t have fuel to burn calories,” Glassman says. The body requires energy to keep its metabolism properly functioning, and a 2007 study published in the American Journal of Clinical Nutrition found that consuming fatty acids can boost metabolic health. 

What’s more, “old” fat stored in the body’s peripheral tissues—around the belly, thighs, or butt (also called subcutaneous fat)—can’t be burned efficiently without “new” fat to help the process, according to researchers at Washington University School of Medicine in St. Louis. 

Think of mealtime like baseball spring training: young, hungry players (new fat) hit the field and show the general manger (the liver) that it’s time to send the old, worn-out players (subcutaneous fat) home. And away they go.

Fat isn’t the easiest nutrient to digest, so it sticks around in the digestive system for more time than many other nutrients. MUFAs may also help stabilize blood sugar levels, according to Mayo Clinic. That means you feel full longer, and you won’t feel the stomach-growling urge to raid the refrigerator after mealtime. 

In fact, diets with high amounts of omega-3 fatty acids, a type of PUFA that the body can only acquire through food, create a greater sense of fullness both immediately following and two hours after dinner than do meals with low levels of the fatty acids, according to a 2008 study from University of Navarra in Pamplona, Spain. It’s no surprise that dieters who consume moderate levels of fat are more likely to stick with their eating plans than dieters who consume low levels of fat. 

Unsaturated Fatty Acids: Consisting of both monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs), they are important for health. MUFAs are found in vegetable oils, nuts, seeds, olives, and avocadoes, while PUFAs are found in vegetable oils, fish, and seafood. 

Omega-3 and omega-6 fatty acids are two PUFAs that can only be obtained through diet and are called “essential fatty acids.” Adjust your diet accordingly.

*Saturated Fatty Acids: Found primarily in foods from animal sources such as meat and dairy products, like butter and cheese, they are usually solid at room temperature. Some vegetable oils such as coconut, palm kernel, and palm oil also contain saturated fat. 

Eat limited amounts as part of a healthy diet – and always try to consume healthier sources. For example, grass fed beef is a much better option than, say, popcorn popped in oil.

*Trans Fatty Acids: Chemically processed vegetable oils, they are semisolid at room temperature and are used in some margarines, fried foods, and processed foods to enhance flavor, texture, and shelf life. 

Also called “partially hydrogenated” oils, they should be avoided like the plague they are.