Saturated fats. Typical sources of saturated fat include animal products, such as red meat, whole-fat dairy products, and eggs, and also a few vegetable oils, such as palm oil, coconut oil, and cocoa butter. Saturated fat can increase your levels of "bad" LDL cholesterol. But it has some benefits, too — it lowers triglycerides and nudges up levels of "good" HDL cholesterol.
Not all oils are created equal when it comes to your heart health. Olive oil and soybean oil are mainly unsaturated fat, which can lower LDL cholesterol and at the same time increase HDL cholesterol. In a study published in July 2015 in The Journal of Nutrition, researchers found that including olive oil in the diet decreased LDL concentrations in healthy young men.
Many fruits contain soluble fiber, which is important for lowering cholesterol, but apples have a leg up on other fruits. Apples (especially the skins) contain pectin, a type of soluble fiber that latches onto the "bad" cholesterol and guides it through your digestive system and out of your body, effectively lowering your LDL-cholesterol levels. Citrus fruits are also high in pectin, but since it's mostly in the pulp, you'll have to eat your fruits to get the benefits, rather than juice them. Luckily, apples are a little easier to pucker up to than lemons. Apples are also high in polyphenols, powerful antioxidants that help reduce inflammation.
I very simply lowered my cholesterol 57 points in 6 month (257 to 200) and my ldl from 158 to 132 by not eating meat. It has now been a year since I stopped eating meat, I cannot exercise due to major surgery but lost 50lbs and will have my cholesterol retested in September for my annual checkup. I’m also planning on going back to the gym soon. High cholesterol runs in my family and I was determined not to go on medication like my mom. I gained 30lbs when I was injured, I did not intend to go back to my weight as a teenager when I stopped eating meat, just lower my cholesterol, that was just a perk. I never deprive myself of food, I eat fish and I don’t miss meat from my diet at all. It was a conscience choice I made to try and lower my cholesterol, no one told me to or advised me but it worked and I’m happy I took the path. Good luck to all and stay healthy!
Who doesn't love avocados? They not only taste amazing but also can help lower your cholesterol. Avocados are high in healthy monounsaturated fat, which helps lower "bad" LDL cholesterol. They also contain fiber, antioxidants and phytosterols, such as beta-sitosterol, which have also been shown to lower cholesterol. Don't hog the entire bowl of guacamole, though! One serving is just a quarter of a Hass avocado, which delivers 57 calories. Spread a few slices of avocado on your sandwich instead of mayo, or dip some veggies into a bowl of fresh guacamole.
Research has shown the health benefits of eating seafood rich in omega-3 fatty acids, especially when it replaces less healthy proteins that are high in saturated fat and low in unsaturated fat. Including seafood high in omega-3 fatty acids as part of a heart-healthy diet can help reduce the risk of heart failure, coronary heart disease, cardiac arrest and the most common type of stroke (ischemic).
If you smoke, it’s time to pack it in. According to the American Heart Association, smoking reduces your HDL cholesterol levels, while increasing your risk of heart disease, high blood pressure and diabetes. If you’re a smoker, you need to quit. Once you stop smoking, you can significantly improve your HDL cholesterol level very quickly and start protecting your heart. And if you’re a non-smoker, you need to avoid exposure to second-hand smoke to prevent your health from going up in smoke.
Perhaps most disappointing of all, a new class of drugs (the so-called CETP-inhibitors), which several pharmaceutical companies have been enthusiastically developing for several years to raise HDL levels, has become a great disappointment. While these drugs do indeed increase HDL levels, they have not demonstrated an ability to improve cardiac risk — and on the contrary, studies appear to show a worsening in cardiac risk with some of these drugs. It is unclear today whether any CETP-inhibitors will ever reach the market.
Though the age-old myth stating eggs are bad for our blood cholesterol has been debunked, one thing for certain is that reducing total saturated fats in the diet leads to an improved cholesterol profile. What does this mean in terms of animal protein? The American Heart Association recommends consuming less red meat overall and choosing leaner cuts to lower bad cholesterol and increase good cholesterol. Chicken is a versatile choice that doesn’t have to be boring or dry. Check out our 35 healthy ways to prepare this bird!
HDL plays an important role in transporting cholesterol from the peripheral tissues to the liver, where it can be excreted; this process is known as reverse cholesterol transport (RCT). (The liver is the main organ for excretion of cholesterol, doing so either directly or by converting cholesterol into bile acids.) It is important to remember that most HDL measured in the blood is derived from the liver and intestine. Therefore, the concentration of HDL in plasma does not reflect cholesterol efflux from blood vessels or the efficiency of RCT. Moreover, HDL function in RCT is not mirrored by HDL measurements. 
Soy isoflavones significantly decreased serum total cholesterol by 0.10 mmol/L (3.9 mg/dL or 1.77%; P = 0.02) and LDL cholesterol by 0.13 mmol/L (5.0 mg/dL or 3.58%; P < 0.0001); no significant changes in HDL cholesterol and triacylglycerol were found. Isoflavone-depleted soy protein significantly decreased LDL cholesterol by 0.10 mmol/L (3.9 mg/dL or 2.77%; P = 0.03). Soy protein that contained enriched isoflavones significantly decreased LDL cholesterol by 0.18 mmol/L (7.0 mg/dL or 4.98%; P < 0.0001) and significantly increased HDL cholesterol by 0.04 mmol/L (1.6 mg/dL or 3.00%; P = 0.05). The reductions in LDL cholesterol were larger in the hypercholesterolemic subcategory than in the normocholesterolemic subcategory, but no significant linear correlations were observed between reductions and the starting values. No significant linear correlations were found between reductions in LDL cholesterol and soy protein ingestion or isoflavone intakes.
And according to some powerful experiments by software engineer-turned-biohacker Dave Feldman, you can actually increase and decrease your cholesterol at will. It all depends on how much fat you eat — and, directly against mainstream dietary knowledge, the correlation is inverted. In other words, eating more fat will actually lower your cholesterol.