Levels and ranges
In adults, total cholesterol levels less than 200 milligrams per deciliter (mg/dL) are considered healthy.
A reading between 200 and 239 mg/dL is borderline high.
A reading of 240 mg/dL and above is considered high.
LDL cholesterol levels should be less than 100 mg/dL.
100–129 mg/dL is acceptable for people with no health problems but may be a concern for anyone with heart disease or heart disease risk factors.
130—159 mg/dL is borderline high.
160–189 mg/dL is high.
190 mg/dL or higher is considered very high.
HDL levels should be kept higher. The optimal reading for HDL levels is of 60 mg/dL or higher.
A reading of less than 40 mg/dL is considered a major risk factor for heart disease.
A reading from 41 mg/dL to 59 mg/dL is bo
Cholesterol in foods
a piece of salmon
Oily fish like salmon has been shown to actively decrease cholesterol.
A report from Harvard Health has identified "11 cholesterol lowering foods" that actively decrease cholesterol levels:
barley and whole grains
eggplant and okra
vegetable oil (canola, sunflower)
fruits (mainly apples, grapes, strawberries, and citrus)
soy and soy-based foods
fatty fish (particularly salmon, tuna, and sardines)
foods rich in fiber
Adding these to a balanced diet can help keep cholesterol in check. The same report also lists foods that are bad for cholesterol levels, including:
Causes of high cholesterol
High cholesterol is a major risk factor for coronary heart disease, a cause of heart attacks. Reducing blood lipid levels may lower cardiovascular risk. A build-up of cholesterol is part of the process that narrows arteries, called atherosclerosis, in which plaques form and cause restriction of blood flow.
Reducing intake of fat in the diet helps manage cholesterol levels. In particular, it is helpful to limit foods that contain:
Cholesterol - from animal foods, meat, and cheese.
Saturated fat - found in some meats, dairy products, chocolate, baked goods, deep-fried, and processed foods.
Trans fats - found in some fried and processed foods.
Being overweight or obese can also lead to higher blood LDL levels. Genetics can contribute to high cholesterol - very high LDL levels are found in the inherited condition familial hypercholesterolemia. Abnormal cholesterol levels can also arise due to other conditions, including:
liver or kidney disease
polycystic ovary syndrome
pregnancy and other conditions that increase levels of female hormones
underactive thyroid gland
drugs that increase LDL cholesterol and decrease HDL cholesterol (progestins, anabolic steroids, and corticosteroids)
hat causes high cholesterol?
Last updated Mon 27 November 2017 By Markus MacGill Reviewed by Daniel Murrell, MD
Causes Symptoms Diet Levels and ranges Prevention Treatment Complications
Cholesterol is both good and bad. At normal levels, it is an essential substance for the body. However, if concentrations in the blood get too high, it becomes a silent danger that puts people at risk of heart attack.
Cholesterol is found in every cell of the body and has important natural functions when it comes to digesting foods, producing hormones, and generating vitamin D. It is manufactured by the body but can also be taken in from food. It is waxy and fat-like in appearance.
There are two types of cholesterol; LDL (low-density lipoproteins, bad cholesterol) and HDL (high-density lipoproteins, good cholesterol).
In this article, we will explain the role of cholesterol. We will also discuss the causes of high cholesterol, and its symptoms, treatment, and prevention.
Fast facts on cholesterol:
Cholesterol is an essential substance that is produced by the body but is also ingested from animal-derived foods.
The greatest risk factors for high cholesterol are modifiable lifestyle choices - diet and exercise.
Having high cholesterol does not usually produce any symptoms.
If lifestyle changes are unsuccessful or cholesterol levels are very high, lipid-lowering drugs such as statins may be prescribed.
What is cholesterol?
man with unhealthy burger
High cholesterol has a number of causes, including dietary choices.
Cholesterol is an oil-based substance and does not mix with the blood, which is water-based. It is carried around the body by lipoproteins.
Two types of lipoprotein carry the parcels of cholesterol:
Low-density lipoprotein (LDL) - cholesterol carried by this type is known as "bad" cholesterol.
High-density lipoprotein (HDL) - cholesterol carried by this type is known as "good" cholesterol.
Cholesterol has four primary functions, without which we could not survive, these are:
contributing to the structure of cell walls
making up digestive bile acids in the intestine
allowing the body to produce vitamin D
enabling the body to make certain hormones