A total cholesterol of 240 mg/dL is classified as high. According to standard medical thresholds, total cholesterol below 200 mg/dL is normal, 200 to 239 is borderline high, and 240 or above crosses into the high category. That said, what a reading of 240 actually means for your health depends on several other factors beyond that single number.
What a Total Cholesterol of 240 Tells You
Total cholesterol is the sum of several different types of cholesterol and fats in your blood. It includes LDL (the type that builds up in artery walls), HDL (the type that helps remove cholesterol from your bloodstream), and a portion of your triglycerides. Two people can both have a total cholesterol of 240 and face very different levels of risk depending on how that number breaks down.
For example, someone with a total of 240 driven largely by very high HDL might be in a better position than someone whose 240 comes mostly from elevated LDL. This is why newer cardiovascular guidelines have moved away from using total cholesterol as a primary treatment target. The most recent joint guidelines from the American College of Cardiology and American Heart Association focus on LDL and non-HDL cholesterol levels instead, setting specific goals based on your overall cardiovascular risk. If your total cholesterol comes back at 240, the next step is looking at the full lipid panel, not just that top-line number.
Why 240 Doesn’t Feel Like Anything
High cholesterol produces no symptoms. You won’t feel tired, get headaches, or notice any physical sign that your levels are elevated. The damage happens silently over years as excess LDL cholesterol accumulates in artery walls, forming plaques that narrow blood vessels and restrict blood flow. This process, called atherosclerosis, is what eventually raises the risk of heart attack and stroke. That’s why routine screening matters. Adults 20 and older should have cholesterol checked, and for most people the standard recommendation is every four to six years, though your doctor may test more frequently if your numbers are elevated or you have other risk factors.
How Doctors Assess Your Actual Risk
A cholesterol reading of 240 doesn’t automatically trigger medication. Doctors use a broader risk calculator that factors in your age, sex, race, total cholesterol, HDL cholesterol, systolic blood pressure, whether you take blood pressure medication, whether you have diabetes, and whether you smoke. This tool estimates your percentage chance of having a cardiovascular event over the next 10 years.
The U.S. Preventive Services Task Force recommends statin therapy for adults aged 40 to 75 who have at least one cardiovascular risk factor (high cholesterol, diabetes, high blood pressure, or smoking) and a 10-year risk of 10% or greater. For those with a 10-year risk between 7.5% and 10%, the recommendation is more selective, with doctors weighing individual preferences and circumstances. For adults over 76 who haven’t previously taken a statin, the evidence isn’t strong enough to make a clear recommendation either way.
One exception: if your LDL cholesterol alone is 190 mg/dL or higher, that’s considered severe hypercholesterolemia. At that level, statin therapy is generally recommended regardless of other risk factors, and separate guidelines apply.
LDL Goals Based on Your Risk Level
If your 10-year cardiovascular risk is borderline or intermediate (roughly 3% to 10%), current guidelines suggest treating to an LDL goal below 100 mg/dL. If your risk is high (10% or greater), the target drops to below 70 mg/dL. For people who already have established heart disease, the goal is even more aggressive: LDL below 55 mg/dL. These numbers give you a concrete sense of what your doctor is aiming for if treatment is recommended, and they explain why the conversation quickly moves past total cholesterol to focus on LDL specifically.
Lifestyle Changes That Lower Cholesterol
Dietary changes are typically the first line of defense. The single most impactful change for most people is reducing saturated fat intake. The American Heart Association recommends keeping saturated fat to less than 6% of your daily calories. On a 2,000-calorie diet, that works out to about 13 grams per day. To put that in perspective, a single fast-food cheeseburger can contain 10 to 15 grams of saturated fat, and a tablespoon of butter has about 7 grams. The biggest dietary sources are red meat, full-fat dairy, fried foods, and baked goods made with butter or palm oil.
Replacing saturated fats with unsaturated fats (olive oil, nuts, avocados, fatty fish) rather than simply cutting fat altogether tends to produce the best results. Adding soluble fiber from oats, beans, lentils, and fruits also helps by binding cholesterol in your digestive tract before it reaches your bloodstream.
Regular aerobic exercise, even moderate activity like brisk walking for 30 minutes most days, can raise HDL and modestly lower LDL. Losing excess weight has a compounding effect: it improves LDL, HDL, and triglycerides simultaneously. For some people, these changes alone are enough to bring total cholesterol below 200 and push LDL into a healthy range. For others, particularly those with a genetic tendency toward high cholesterol, lifestyle changes help but aren’t sufficient on their own, and medication becomes part of the plan.
What to Expect After a 240 Reading
If your total cholesterol comes back at 240, your doctor will likely want to see the full breakdown of LDL, HDL, and triglycerides. They may also order a fasting lipid panel if your initial test wasn’t done fasting, since triglyceride readings are more accurate without food in your system. From there, expect a conversation about your broader risk profile: your blood pressure, family history of early heart disease, smoking status, and whether you have diabetes.
For many people, the initial plan is three to six months of focused lifestyle changes followed by repeat testing. If your numbers improve meaningfully, you continue on that path with periodic monitoring. If they don’t budge enough, or if your overall cardiovascular risk is already high, medication enters the picture sooner. The goal isn’t necessarily to hit a specific total cholesterol number. It’s to get your LDL low enough to match your risk level, which is a more precise and useful target.