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Classifying cholesterol levels 

It is important to check your cholesterol levels regularly especially if you have any risk factors. If your total cholesterol level is between 5.2 and 6.1mmol/L, you are at a higher risk for coronary artery disease. If your total cholesterol level registers at 6.2 mmol/L and above, you have hypercholesterolaemia, which is attributable to genetic factors, diabetes mellitus, obesity, and poor eating habits.

The desirable level of LDL cholesterol depends on your pre-existing risk for coronary heart disease. If you already have coronary artery disease, peripheral vascular disease, or diabetes, you are in the high-risk group and there is a stringent limit on the acceptable level of LDL cholesterol. Conversely, if you have none or only one of the risk factors, a higher value of LDL cholesterol is acceptable before medical intervention.

HDL cholesterol protects against heart disease, hence a higher HDL cholesterol level is considered better. A HDL cholesterol level that is less than 1.0 mmol/L is considered to be low and the patient is thus at risk of developing heart disease. High levels of triglyceride also put you at a greater risk of cardiovascular disease. Elevated triglyceride levels are more common in people who are obese or in those with poorly controlled diabetes. As you get older and more overweight, your triglyceride and cholesterol levels tend to increase.


Classification of Total, LDL and HDL Cholesterol and Triglyceride Levels

​Total Blood Cholesterol (mmol/L [mg/dL])
< 5.2 (200)​​Desirable
​5.2 – 6.1 (200 – 239)
​Borderline High
​≥ 6.2 (240)
​High
​​LDL Cholesterol (mmol/L [mg/dL])
​< 2.6 (100)
​Optimal
​2.6 – 3.3 (100 – 129)
​Desirable
​3.4 – 4.0 (130 – 159)
​Borderline high
​4.1 – 4.8 (160 – 189)
​High
​≥ 4.9 (190)
​Very High
HDL Cholesterol (mmol/L [mg/dL])​
​< 1.0 (40)
Low​
1.0 – 1.5 (40 – 59)​
Desirable​
​≥ 1.6 (60)
High​
​Triglyceride (mmol/L [mg/dL])​
< 1.7 (150)​
Optimal​
1.7 – 2.2 (150 – 199)​
Desirable​
​2.3 – 4.4 (200 – 399)
High​
​≥ 4.5 (400)
Very high​
HDL=high-density lipoprotein; LDL=low-density lipoprotein 
Source: MOH Clinical Practice Guidelines 2/2006

Managing high cholesterol

A combination of lifestyle changes and medication should effectively bring one’s cholesterol levels under control. 

1) Lifestyle changes 

Lifestyle changes are usually the first strategies for preventing high cholesterol. 

  • Eat healthily:
Eat more foods rich in omega-3 fatty acids and fibre such as salmon and oatmeal. Reduce consumption of saturated and trans fats, which are often found in red meat, margarine and desserts. 


Recommended servings for various types of food (Click to expand)

  • Maintain a healthy weight:
Obesity raises levels of LDL cholesterol, and the excess body fat slows down the body’s ability to remove LDL cholesterol. This combination of factors increases cholesterol levels to unhealthy levels and increases one’s risks of heart disease and stroke. One should achieve and maintain a healthy body mass index (BMI). The healthy BMI range for Asians is between 18.5 and 22.9 kg/m2.

  • Exercise regularly:
Moderate-intensity exercise raises HDL cholesterol levels, and can help with maintaining a healthy weight. These can be simple exercises incorporated into your daily life, such as walking up the stairs instead of taking the lift. 

Healthy adults should complete at least 150 minutes of moderate-intensity exercise (such as brisk walking) in a week. Please seek your doctor’s advice for physical exercises that are suitable for you.

  • Quit smoking:
Smoking cessation improves HDL cholesterol levels and lowers LDL cholesterol levels. Non-smokers should also avoid inhaling second-hand smoke as much as possible. 

  • Drink alcohol in moderation:
An excessive amount of alcohol increases both triglyceride and total cholesterol levels. 

2) Medication



Medications might be prescribed if one still has high cholesterol after making lifestyle modifications. Medications are prescribed in consideration of the patient’s risk factors and generally aim to:

  • Lower triglyceride levels 
  • Lower LDL cholesterol levels 
  • Increase HDL cholesterol levels 

Patients should take their medication regularly according to the prescription given and let their doctor know if they experience any side effects. It is advisable not to stop medication without checking with your care team.
The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

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