Cholesterol can be a complicated subject that many people do not fully understand. Most people have been taught that cholesterol is a bad thing. And for a while it was thought that dietary cholesterol, which is the cholesterol found in food, had a big impact on raising cholesterol in the blood. However, Healthline reports that more recent science indicates this is not the case for most people. Is it any wonder that cholesterol is still a mystery to so many?

What is cholesterol?

Cholesterol is a fat-like, waxy substance that occurs naturally in the body. Widely believed to be harmful, cholesterol is actually necessary for the body to function, as the body needs it to make hormones and vitamin D, and cholesterol contributes to the membrane structure of every cell in the body.

What are lipoproteins?

When people talk about heart health and cholesterol, they’re really speaking about lipoproteins and not about cholesterol itself. Lipoproteins are structures that carry cholesterol through the blood. There are two main types of lipoproteins: high-density lipoprotein (HDL) and low-density lipoprotein (LDL). HDL is typically called the “good” cholesterol, because it moves extra cholesterol from the bloodstream to the liver where it is cleaned out, says the Cleveland Clinic. LDL is the “bad” cholesterol because, when amounts of it are excessive, they contribute to plaque buildup in the arteries. You need some LDL to carry cholesterol to the body’s cells, but having too much can be troublesome. HDL carries some LDL away from the arteries, but other steps are needed to lower HDL. Another lipid in the blood includes triglyceride, which is a type of fat. High levels of triglycerides also can put a person at risk for heart issues, including atherosclerosis, which is a hardening of the blood vessels.

Dietary cholesterol vs. blood cholesterol.

The amount of cholesterol in the blood and the amount in one’s diet are two different things. Typically, eating foods that contain cholesterol does not directly correspond to an elevated blood cholesterol level. Blood cholesterol is mainly determined by the amount of fats and carbohydrates in the diet, as well as genetics. Some people are simply genetically prone to high cholesterol levels. Even for people whose blood cholesterol is affected by dietary cholesterol (hyper responders), research shows dietary cholesterol only moderately increases LDL, and in these cases, it does not seem to increase their risk of heart disease.

How to maintain good cholesterol health?

According to Piedmont Healthcare, there are ways to control cholesterol and lipoproteins, so they are beneficial to the body. They include choosing foods lower in saturated fat and being mindful of foods that can impact blood sugar levels; quitting smoking; reducing stress levels that may help you avoid eating high-fat foods as a coping mechanism; exercising regularly; losing weight, which can increase HDL and lower LDL; choosing low-fat or nonfat dairy products and lean meats; and incorporating more fiber into your diet, which helps remove excess LDL.

There is much confusion about cholesterol among the general public. But learning the basics of cholesterol can help individuals make more informed decisions about their diet and overall health.