Cholesterol is carried through the bloodstream attached to two different compounds called lipoproteins: low-density lipoproteins (LDL) and high-density lipoproteins (HDL). LDL is commonly known as the “bad” cholesterol because it transports cholesterol from the liver throughout the body, and potentially allows it to be deposited in artery walls. HDL, known as the “good cholesterol,” picks up cholesterol from the blood and delivers it to cells that use it, or takes it back to the liver to be recycled or eliminated from the body.
But keep in mind that not all cholesterol is created equally. LDL cholesterol, also known as “bad cholesterol,” is the form that can build up on the artery walls and increase your risk of heart disease. HDL cholesterol, on the other hand, is often dubbed “good cholesterol” because it travels through the bloodstream, removing harmful cholesterol from the arteries to help enhance heart health.
HDL serves as a chemical shuttle that transports excess cholesterol from peripheral tissues to the liver. This pathway is called the RCT system. In this system, plasma HDL takes up cholesterol from the peripheral tissues, such as fibroblasts and macrophages. (A study by El Khoury et al indicated that in persons with HALP, macrophages have an increased plasma cholesterol efflux capacity.  ) This may occur by passive diffusion or may be mediated by the adenosine triphosphate (ATP)–binding cassette transporter 1. The latter interacts directly with free apo A-I, generating nascent, or so-called discoidal, HDL. Cholesterol undergoes esterification by lecithin-cholesterol acyltransferase (LCAT) to produce cholesteryl ester, which results in the production of the mature spherical HDL. Cholesterol is also taken up from triglyceride-rich lipoproteins in a process mediated by a phospholipid transfer protein (ie, CETP). [19, 20, 21, 22]
Fish can be fatty or lean, but it’s still low in saturated fat. Eat at least 8 ounces of non-fried fish each week, which may be divided over two 3.5- to 4-ounce servings. Choose oily fish such as salmon, trout and herring, which are high in omega-3 fatty acids. Prepare fish baked, broiled, grilled or boiled rather than breaded and fried, and without added salt, saturated fat or trans fat. Non-fried fish and shellfish, such as shrimp, crab and lobster, are low in saturated fat and are a healthy alternative to many cuts of meat and poultry.
LDL stands for Low-Density Lipoproteins. This type of cholesterol is produced by the liver and is instrumental in the creation of cell walls, hormones, and digestive juices. However, when your LDL level is high, it can start to form a plaque-like substance on the walls of your cardiovascular system, blocking the natural flow of blood and leaving you at severe risk for heart attack and stroke. Put simply, LDL is the bad kind of cholesterol. But fear not – there are several ways in which you can lower your LDL cholesterol and encourage the development of High-Density Lipoproteins (good cholesterol), which actually function to limit the level of LDL cholesterol in your system.
While the world of wellness endlessly touts of benefits of anti-inflammatory foods, who knew eating these could kill two birds with one stone by also improving your cholesterol? Blueberries are rich in anthocyanins, the phytochemical that gives this berry its dark blue pigment and are essential to overall heart health through enhancing anti-inflammatory pathways as well as increasing HDL cholesterol levels, according to a study in The American Journal of Clinical Nutrition. One 2013 study found that consuming blueberries in tandem with exercise can increase HDL levels even more than exercise alone.
What is the difference between HDL and LDL cholesterol? The body needs cholesterol, but too much bad cholesterol can be harmful and is a major risk factor for heart disease and stroke. In this article, learn about the difference between HDL and LDL — “good” and “bad” — cholesterol, as well as how they are measured. What steps can you take to lower LDL and increase HDL? Read now
With apologies to the American Heart Association, which discourages doctors from telling their patients about the advantages of alcohol: one or two drinks per day can significantly increase HDL levels. More than one or two drinks per day, one hastens to add, can lead to substantial health problems including heart failure. And unfortunately, there are many people who are simply incapable of limiting their alcohol intake to one or two drinks per day. Here's more on alcohol and the heart.
Part of the “French paradox”-lower heart-disease rates in butter-and-cream-feasting France-may stem from the HDL benefits of wine consumption. For some people, however, alcohol causes more troubles than it cures. “Men should limit themselves to one or two drinks a day,” Willett says. “After that, you start worrying about adverse consequences.” While any alcoholic beverage will do, the antioxidants in red wine or dark beer may give you an added benefit.
Olive oil is a plant-based fat, so it's a better choice when you're trying to lower your "bad" cholesterol than fats that come from animals. It’s great mixed with red wine vinegar, a minced garlic clove, and a little ground pepper for a salad dressing. For something different, try braising vegetables like carrots or leeks. Just drizzle 3 tablespoons of oil over vegetables in a snug baking dish, scatter some herbs, cover with foil, and put in a 375-degree oven for about 45 minutes.
Salmon is rich in omega-3 fatty acids, which are healthy fats that can help reduce blood pressure. Eating salmon can improve your "good" HDL cholesterol, but it won't lower your "bad" LDL cholesterol. HDL cholesterol helps sweep cholesterol off your artery walls, preventing dangerous plaque from forming. The American Heart Association recommends eating fatty fish like salmon at least twice per week for heart-healthy benefits. Other fish that contain omega-3s, such as mackerel, tuna and sardines, can also help.
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!