Polyunsaturated fats can also be healthy. The two main types are omega-3 and omega-6 fatty acids, essential fats our bodies need for brain function and cell growth. Omega-3s are beneficial for every aspect of heart health, and are mostly found in fish and algae, nuts, and seeds. “Other polyunsaturated fats, [omega-6s], can be found in certain plant-based oils,” Hunnes adds. “They’re not particularly harmful, but not necessarily beneficial the way omega-3s and monounsaturated fats are.” Omega-6s work alongside omega-3s to lower LDL cholesterol, but research suggests that eating more omega-6 than -3 may contribute to inflammation and weight gain, so the key is to make sure your omega-3 intake is always higher.
Confused yet? Why would our body break something down to just put it back together? Long-chain fatty acids are insoluble in blood and in order to transport these across, triglycerides are packaged into chylomicrons that are basically a vehicle that gets released into the lymphatic system and eventually in the blood for circulation. When chylomicrons reach the capillaries of muscle and fat tissue, they activate lipoprotein lipase (stay with me here).
However, many experts disagree with the report’s conclusions on a few fronts. First, the link is based on the reasoning that saturated fat raises total cholesterol levels, but many studies suggest the link between higher cholesterol numbers and heart disease risk has been overstated. And while LDL is often referred to as “bad” cholesterol, there are different types of LDL, and the total number may be less important than the composition of the actual particles. Small, dense particles are inflammatory and associated with heart disease risk, while larger particles are not.
Following the momentous Seven Countries Study, organizations like the American Heart Association began urging consumers to cut down on consumption of saturated fat to improve heart health despite the lack of evidence demonstrating a clear link between saturated fat and heart disease. Not only did this cause confusion for consumers about the differences between saturated versus unsaturated fat, but it also caused many people to associate overall fat intake with weight gain and heart problems.
I listen to my wife everyday. In fact, I often ask the following question to her, “Amanda, what are your thoughts about…” or “What am I missing about…” It is shocking what I hear back from her. Without her having much context and perspective, by the art of observation in my own nonverbal behavior and the behavior of others, she accurately gives me incredible insights which helps me out with living my life to the fullest.
The majority of yogurt’s fat comes from saturated fats, but it also contains monounsaturated, polyunsaturated, and naturally-occurring trans fatty acids. Because the overall fatty acid profile is reasonably balanced, it will have no overall effect on cholesterol levels because they both increase LDL but also increase HDL, according to The Journal of the American College of Nutrition.
If you’re wondering about fat and its place in your diet, you’re not alone. Each year the International Food Information Council Foundation conducts a nationwide survey of Americans of all ages and backgrounds. When the results were released earlier this year, fat was found to be one of the biggest topics of nutritional confusion. Research around the importance of fats in the diet continues to grow and results repeatedly underscore the importance of a healthy meal plan that focuses on moderation vs. a restrictive diet. When it comes to healthy fats, here’s what you need to know.
Two recent studies completely debunked the arguments for a low-fat, high-carb diet. In an August 2017 study published in the Lancet, scientists concluded “a high carbohydrate intake was associated with an adverse impact on total mortality, whereas fats including saturated and unsaturated fatty acids were associated with lower risk of total mortality and stroke. We did not observe any detrimental effect of fat intakes on cardiovascular disease events” (3).
Dietary fat has been in the limelight since the 1950s, when researcher Ancel Keys conducted a study analyzing the diet patterns of seven different countries as well as their respective rates of heart disease. At the conclusion of the study, he found that higher levels of serum cholesterol were associated with a higher risk of heart disease and believed that a higher intake of foods high in saturated fat was to blame. (44)
Saturated fats are found in animal products (meat, poultry skin, high-fat dairy, and eggs) and in vegetable fats that are liquid at room temperature, such as coconut and palm oils. The 2005 Dietary Guidelines recommend limiting saturated fats to 10% or less of your total calories, while the American Heart Association recommends keeping them to just 7% of total calories.
One easy rule: You should always avoid trans fats—they’re listed on the nutrition label as “partially hydrogenated oils.” Most are artificial and raise your LDL cholesterol while lowering your HDL cholesterol (the good kind that helps keep blood vessels clear). According to the American Heart Association, trans fats increase your risk of developing heart disease and stroke, and are associated with a higher risk of type 2 diabetes.
Best of all, adding coconut oil to your diet is easy. You can use it for cooking or baking or even try applying it directly to the skin. Beware that when cooking directly with coconut oil, the flavor can be a bit overpowering for some. If that’s the case, try using a bit less. It’s also important to note that, at room temperature, coconut oil is solid, so it’s not the best choice when you need a healthy fat in liquid form. Additionally, when choosing a coconut oil, extra virgin varieties are best, as refined or processed coconut oils can eliminate many of the health benefits.
Olives are rich in monounsaturated fat. Add them to salads or snacks, and cook with olive oil whenever possible as part of a heart-healthy diet. “Olive oil is made up of triglycerides that contain a very large percentage of monounsaturated fatty acids,” says Janet Bond Brill, PhD, a registered dietitian and author of Cholesterol Down: 10 Simple Steps to Lower Your Cholesterol in 4 Weeks Without Prescription Drugs and Prevent a Second Heart Attack: 8 Foods, 8 Weeks to Reverse Heart Disease. “Up to 80 percent of olive oil is monounsaturated, primarily the omega-9 fatty acid known as oleic acid. The high monounsaturated fatty acid content of olive oil is extremely cardioprotective — it cuts your ‘bad’ cholesterol level, helps prevent atherosclerosis, and can bump up your level of HDL, the ‘good’ cholesterol.” Try this simple olive-based side dish of chard with green olives, currants, and goat cheese.
But as you know, not all fats are created equal. Saturated and trans fats are the worst kind, as both increase the amount of bad cholesterol that enters the blood system. Bad fats also lead to inflammation, which can cause numerous debilitating diseases. All of the burgers, French fries, pizza and other greasy junk foods are loaded with these bad fats that can harm your body.