High Cholesterol: Symptoms, Causes and How to Reduce It

High cholesterol is an LDL cholesterol reading above the target set for your heart risk. For most Indian adults that target is under 100 mg/dL, and it drops to under 70 or under 55 as risk rises. It causes no symptoms. A blood test is the only way to find it. The number, read against your overall risk, decides what happens next.²

What counts as high cholesterol? Copy link

High cholesterol means your LDL cholesterol sits above the goal for your risk group. The Cardiological Society of India sets that goal at under 100 mg/dL for people at low or moderate risk and under 70 mg/dL for high risk. Very high risk, which includes anyone who already has heart or artery disease, gets a goal under 55 mg/dL. Anything from 100 to 189 is above goal for every group.² The full Indian classification has five tiers, since it adds an extremely high risk category for people with repeated vascular events, and for people with artery disease plus an inherited lipid disorder such as familial hypercholesterolemia or high Lp(a), and the formal assessment counts diabetes duration, kidney disease and imaging findings as well. The three numbers are the working summary of it.²

Total cholesterol is a weaker guide. LDL is the one to watch. Most of the risk sits in LDL, the particle that carries cholesterol into artery walls, and in non-HDL cholesterol, which is everything except the protective HDL fraction. The Indian guideline pairs each LDL goal with a non-HDL goal 30 mg/dL higher, so under 130, under 100 and under 85 for the same three groups.²

One number stands apart. An LDL of 190 mg/dL or more on two tests is called severe hypercholesterolemia. Both guidelines treat it on its own, with a statin recommended even in a young adult with no other risk factor, after secondary causes such as an underactive thyroid have been checked.^{2, 3} It prompts a look for familial hypercholesterolemia, but it does not prove it. When 1,386 people with an LDL at or above 190 had the three FH genes sequenced, only 24, or 1.7 percent, carried a mutation. The rest still had about sixfold higher odds of coronary disease than people under 130 with no mutation, and the carriers about 22-fold higher odds.²⁰ Every other line on the report, including HDL, VLDL and triglycerides, is read on the lipid profile test page. This page is about what to do once LDL is high.

The American guideline updated in March 2026 lands on the same three LDL goals of under 100, under 70 and under 55 mg/dL. It also lists South Asian ancestry among the factors that push a person into a higher risk group.³ Two guidelines on two continents now agree that the goal moves with your risk, so there is no single "normal" for everyone.

What are the symptoms of high cholesterol? Copy link

High cholesterol itself produces no symptoms, and you cannot feel it.

The chest pain, breathlessness and calf cramps often listed as "warning signs" are symptoms of the artery disease that years of high cholesterol can cause. By then artery disease is already present, and the aim shifts from preventing it to treating it, which lowering LDL still does.^{4, 7}

Visible signs do exist, but they belong to the inherited form, familial hypercholesterolemia, where LDL has been very high since birth. Fatty deposits called xanthomas can form over the hands, elbows, knees and ankles. Yellowish patches on the eyelids are called xanthelasma. A pale ring at the edge of the cornea, corneal arcus, can appear at a young age. Angina can arrive in the thirties or forties.⁴

If you have any of these, or a parent or sibling had a heart attack before 60, ask your doctor for a lipid profile now. Do not wait for the next routine checkup. Familial hypercholesterolemia from the LDLR, APOB or PCSK9 gene is passed down in an autosomal dominant pattern, meaning one copy of the altered gene from one parent is enough to cause it. The rarer LDLRAP1 form is recessive and needs a copy from each parent.²¹ In India it accounts for 15 to 20 percent of coronary disease that strikes early.^{4, 2}

Everyone else finds out from a blood test, or from the first event the high reading leads to. That is why guidelines push the first test so early in life, and why a normal lipid profile at 25 still earns its place, as the baseline every later reading is compared against.

What causes high cholesterol? Copy link

High cholesterol comes from how much LDL your liver makes and how fast it clears it. Both are set mostly by genes, with diet, weight, inactivity and a few medical conditions layered on top. For most people it is a mix, with no single cause to blame.

Genes come first. Familial hypercholesterolemia comes from an inherited change in one of the genes that control how the liver clears LDL, most often LDLR, less often APOB, PCSK9 or LDLRAP1, so the level is high from birth whatever the diet.²¹ It affects about 1 in 200 to 1 in 250 people in most countries, and some people with the condition have no mutation found in any of those genes.²¹ Most high readings are not that extreme, and a family where every adult runs high is the usual clue that genes are doing the work.

Saturated fat is the part of the diet with the strongest trial evidence against it. In a Cochrane review of 15 trials with about 59,000 people, cutting saturated fat for at least two years reduced combined cardiovascular events by 21 percent. The trials that cut it most saw the largest fall in cholesterol and in events.⁹ The Indian guideline does not restrict eggs, and allows one to two a day within its heart-protective diet.²

Other conditions push lipids up. Some are easy to miss. The Indian guideline names hypothyroidism, poorly controlled diabetes and Cushing's syndrome as common secondary causes. It notes that triglycerides and total cholesterol often rise in pregnancy, and it flags steroids and some immunosuppressant drugs as aggravating factors.² If your cholesterol jumps between two tests, check your TSH and blood sugar before you change anything else.

Excess weight, especially visceral fat around the organs, and insulin resistance shape the lipid pattern that is common in India. That pattern is low HDL, high triglycerides and small dense LDL particles, often with an LDL number that looks ordinary, and it is the pattern diabetes produces too.²

Why does high cholesterol hit Indians earlier? Copy link

In the ICMR-INDIAB national survey, 81.2 percent of the 18,492 adults who had their lipids measured had some form of dyslipidemia, which is any abnormal cholesterol or triglyceride value. The survey enrolled 113,043 people in all, and 11.4 percent of those tested for it had diabetes.¹ Low HDL appears to be the commonest finding, present in 51.8 to 83.1 percent of adults depending on the state.²

The heart attacks come earlier. Much earlier. In the INTERHEART study, the mean age at a first heart attack was 53.0 years in South Asian countries against 58.8 years elsewhere. South Asian adults also carried more of the risk factors at younger ages. An elevated ApoB to ApoA-I ratio, a measure of harmful against protective lipid particles, was present in 43.8 percent of South Asian controls and 31.8 percent in other countries. Only 6.1 percent of those South Asian controls reported regular moderate or vigorous exercise. Elsewhere it was 21.6 percent.⁵

A second inherited particle adds to this. Lipoprotein(a), written Lp(a), is a cholesterol-carrying particle whose level is set largely by genes and stays stable through life. Worldwide about one person in five has a raised level above 50 mg/dL. In South Asians it is one in four.² Lp(a) is not on a standard lipid profile, and both the Indian and the 2026 American guideline now say every adult should have it measured once in a lifetime.^{2, 3}

The Indian guideline sets LDL goals that are lower than older Western thresholds for the same risk group. It also notes that South Asians respond strongly to statins, so a lower dose may reach the goal.² Because lipids and blood sugar travel together in this population, a high LDL is a reason to look at HbA1c on the same report. The 2026 American guideline adds ApoB, a count of the harmful particles, as a useful test once LDL and non-HDL goals are met, especially with triglycerides at or above 150 mg/dL, diabetes, or an LDL already under 70, because it can show risk the standard report misses.³

Why does starting early matter more than the number? Copy link

Arteries respond to the total amount of LDL they have been exposed to over a lifetime. The age at which LDL comes down therefore matters more than how far it comes down in a single year. People born with gene variants that keep LDL lower by 1 mmol/L, which is 38.7 mg/dL, have a 54.5 percent lower risk of coronary heart disease across their lives. Lowering LDL by the same amount with a statin started in middle age cuts major vascular events by about 22 percent a year.^{6, 7}

The authors put the genetic estimate at about three times the trial estimate per unit of LDL and attribute the difference to years of exposure.⁶ The two figures come from different study designs, different populations and different outcomes, coronary disease in one and a broader set of vascular events in the other, so the size of the gap is not exact. Its direction is the point. A 2017 consensus statement from the European Atherosclerosis Society pooled more than 200 studies with over 2 million participants and reached the same conclusion. Risk rises with the level of LDL and with how long the arteries have been exposed to it.⁸

This reorders the usual advice. Age is the hidden variable. An LDL of 150 at 28 carries more lifetime risk than an LDL of 150 at 60, because it has three more decades to do damage, even though the 60-year-old's chance of an event in the next ten years is higher and may need treating sooner. The Indian guideline asks for a first lipid profile by age 18, partly to catch familial hypercholesterolemia early.² The exposure data above explain why the years before 40 count for so much.⁶

A statin at 20 is, of course, rarely the answer. Knowing your number at 20 is. So is fixing the diet and weight drivers while the arteries are still clean, instead of waiting for a risk calculator to turn red at 50 before a reading of 150 gets taken seriously.

How to reduce cholesterol without medicine Copy link

Diet and weight changes lower LDL by roughly 5 to 15 percent each, and they add up. That covers a mildly raised reading, and it falls well short for a reading over 190 or for anyone who already has heart disease, which is where the medicine section below starts. The table gives the measured effect of each change, from trials, with the limits of each.

In practice the arithmetic decides. Say your LDL is 130 and you need under 100, which means you are asking for a 23 percent fall from food alone, before any medicine enters the picture and before the day-to-day variation of the test itself is taken into account. Oats and plant sterols together could deliver close to 15 percent if their effects add, which the trials did not test, and individual responses vary. Add a saturated fat swap, and the target is plausible for some people. Treat the sum as an illustration, and let the repeat test tell you what your own numbers did. If you start at 200 and need under 70, you are asking for 65 percent, and no combination of foods gets there.

Coconut oil gets a separate line because it is sold as heart-healthy. The trials disagree. Across the 16 trials in the meta-analysis it raised LDL by 10.47 mg/dL compared with non-tropical vegetable oils such as sunflower, soybean or olive, and the result held when the non-randomized and lower-quality trials were taken out of the pooled estimate.¹²

Timing matters before you retest. The oat trials ran for 2 to 12 weeks and the effect was already present at the short end.¹⁰ A repeat lipid profile about 8 to 12 weeks after a diet change, the span those trials used, shows most of what the change will do. Medicine moves faster. In a small placebo-controlled study of 22 adults on atorvastatin 10 mg, LDL had fallen significantly by day 5 and by 35 percent at day 14, which is why guidelines recheck lipids 4 to 12 weeks after starting or changing a drug and not before.^{19, 3} Losing weight works on a longer clock, and the HDL benefit arrives only after weight has stopped falling.¹³

When do you need cholesterol medicine, and which one? Copy link

The short answer is that you need medicine when your LDL stays above the goal for your risk group after lifestyle changes. You also need it when the goal sits so far below your starting number that diet cannot reach it. Statins are the first choice in both the Indian and the American guideline, and they are prescribed by risk group, not by a single cholesterol cutoff.^{2, 3}

The risk groups are concrete. Here they are. The Indian guideline calls anyone with existing heart, brain or leg artery disease very high risk, with an LDL goal under 55. Diabetes for more than ten years, chronic kidney disease, familial hypercholesterolemia, or two or more standard risk factors make a person high risk, with a goal under 70. One risk factor such as smoking, high blood pressure or a parent with early heart disease is moderate risk, goal under 100.²

Statin intensity is defined by the LDL fall it is expected to produce: moderate intensity lowers LDL by 30 to 49 percent, high intensity by 50 percent or more.³ The doses map onto those bands. Atorvastatin 40 to 80 mg and rosuvastatin 20 to 40 mg are high intensity. Atorvastatin 10 to 20 mg and rosuvastatin 5 to 10 mg are moderate.² Each 1 mmol/L, or 38.7 mg/dL, of LDL lowering cuts the yearly rate of heart attack, stroke and bypass or stenting by just over a fifth. All-cause death falls by 10 percent, and the trials found no floor below which the benefit stopped. A 2 to 3 mmol/L reduction cuts risk by roughly 40 to 50 percent.⁷

When a statin is not enough, or not tolerated, four other drug classes follow. Ezetimibe lowers LDL by about 15 percent on its own. Bempedoic acid lowers it by about 25 percent. Evolocumab, an injected PCSK9 inhibitor that is available in India, lowers it by 50 to 60 percent and is reserved for very high risk because of cost. Inclisiran lowers LDL by about 50 percent with an injection on day one, another at three months, and then one every six months, and its trials on heart attacks and deaths are still running.^{2, 22} The 2026 American guideline follows the same ladder, statin first, then ezetimibe or bempedoic acid, then a PCSK9 antibody.³

Age alone does not rule a statin out. The newest trial is clear on that. In the STAREE trial, published online in August 2026, 9,971 adults aged 70 or more with no prior heart disease, diabetes or dementia took atorvastatin 40 mg or placebo for a median of 5.9 years. Major cardiovascular events fell from 15.5 to 10.9 per 1,000 person-years, a 30 percent relative reduction, while the second outcome the trial was built to test, years of life free of death, dementia or persistent disability, did not change, and serious adverse events ran at 2.7 percent in both groups.¹⁸ Fewer heart attacks, then, with no statistically significant gain in independent years over the trial's follow-up.

Are statins safe? Copy link

Statins have been tested against placebo in blinded trials of more than 120,000 people. Those trials show one real but small muscle effect, a dose-related rise in new diabetes diagnoses that mostly affects people already on the threshold, and a small rise in liver enzyme abnormalities. Most of the other effects attributed to them did not survive a placebo comparison, which does not make the symptoms people feel imaginary. It means the tablet's chemistry is usually not the cause.^{14, 16, 17}

Muscle pain is the symptom you have probably heard about, so the numbers need to be exact. Across 19 placebo-controlled trials with 123,940 participants followed for a median of 4.3 years, 27.1 percent of people on a statin reported muscle pain or weakness at some point, against 26.6 percent of people on placebo, a difference of half a percentage point. In the first year the statin added about 11 reports per 1,000 people a year, which means that across the group only about one in 15 of the muscle complaints reported in the first year could be attributed to the statin. The analysis cannot say which individual's symptom was the one. After the first year there was no statistically significant excess.¹⁴

A smaller trial shows why. Sixty people who had stopped statins because of side effects took atorvastatin 20 mg for four months, a placebo for four months, and no tablet for four months, in random order, scoring symptoms daily. On no tablet their symptom score averaged 8.0 out of 100. On placebo it was 15.4. On the statin it was 16.3. The placebo produced 90 percent of the symptom burden. Half the group restarted statins after seeing their own data.¹⁵

The diabetes effect is real, and it matters in India, where 15.3 percent of adults have prediabetes.¹ Low or moderate intensity statins raised new diabetes diagnoses by 10 percent, from 1.2 to 1.3 percent a year, and high intensity statins raised them by 36 percent, from 3.5 to 4.8 percent a year, in trials that followed 123,940 people for a median of 4.3 years. About 62 percent of the new cases were in people whose blood sugar was already in the top quarter before they started, and the average HbA1c rise was under 0.1 percent. The trials that measured this also measured the heart benefit, and the benefit already includes it.¹⁶

The product label is longer than the evidence. Much longer. In February 2026 the same trial collaboration tested 66 further side effects listed on statin labels against placebo data. Four held up, and all were modest: abnormal liver enzymes in 0.30 versus 0.22 percent a year, other liver test changes, a change in urine composition, and oedema. Cognitive impairment, depression, sleep disturbance and peripheral neuropathy showed no excess, and the authors asked for the labels to be rewritten.¹⁷

If you get muscle pain on a statin, ask your doctor about the options the Indian guideline gives. They are a lower dose, a short break and careful reintroduction, or a switch to a different statin. Routine muscle and liver enzyme checks are not recommended.² Severe muscle pain, weakness, or dark urine is different and needs prompt evaluation, because serious muscle injury, though uncommon, does occur.^{2, 3} In that situation the doctor may stop the drug while it is investigated. Outside it, stopping on your own and staying stopped is the choice the evidence does not support.

How often should you recheck your LDL? Copy link

You should have had a lipid profile by the age of 18, and the test no longer needs fasting. The Indian guideline accepts non-fasting total cholesterol, LDL, HDL, non-HDL and triglycerides for both risk estimation and treatment decisions.² That removes the usual reason for putting it off. The exceptions are a non-fasting triglyceride reading of 400 mg/dL or more, a known triglyceride disorder, or early heart disease in the family, where the American guideline asks for a fasting repeat so that LDL can be estimated accurately.³

Lipoprotein(a) is measured once. Once is enough, because the level barely changes across a lifetime. A value of 125 nmol/L or more, which the American guideline treats as roughly 50 mg/dL, multiplies long-term heart attack and stroke risk by about 1.4, and 250 nmol/L or more at least doubles it. The two units are measured differently, so one is not a fixed multiple of the other.³ As of October 2026 no drug is approved specifically to lower Lp(a), so the response is a lower LDL goal, tighter control of everything else, and in people who already have artery disease a PCSK9 antibody if LDL is still above goal.^{2, 3} If early heart disease runs in your family, your relatives should be tested too.²

After starting a statin, the goal is checked early. In people treated after a heart attack the Indian guideline looks for an LDL under 55 at four weeks and adds a second drug if it is not there.² The American guideline sets the general rule: a lipid profile 4 to 12 weeks after starting or adjusting any lipid-lowering medicine, then every 6 to 12 months to confirm the effect and that the tablets are being taken.³ For a diet change, 8 to 12 weeks is the realistic window, which is the span the diet trials ran. Once you are at goal, a check every 6 to 12 months at the same lab keeps the trend readable, and a lipid profile is part of any full body checkup panel.

A lipid profile is one line of the picture. High blood pressure, blood sugar and smoking each move the risk group, which moves the LDL goal. Take your whole report to the appointment, including the lines nobody flagged in red. Each of those lines has its own decoder in the lab test library.

This article is for education. It does not replace advice from a doctor who can see your full report and history. Do not start, stop or change a cholesterol medicine on the basis of this page.