Why South Asians Get Heart Disease Earlier

South Asians develop cardiovascular disease roughly a decade earlier, and at lower body weight, than European populations do. Standard risk calculators underestimate it. The drivers are body composition, a lipid pattern involving high triglycerides and low HDL, and early insulin resistance — not simply diet or fatalism.

The pattern, stated plainly

Cardiovascular disease is the leading cause of death in India, and it presents earlier than in European populations — commonly in the forties and fifties rather than the sixties and seventies. It also occurs at body weights that would not trigger concern under international thresholds.

This is not a story about Indians being unhealthy in some general sense. It is a specific, well-described pattern with identifiable components, each of which is measurable and most of which are modifiable.

The practical consequence worth taking from this article: the reassurance of a normal BMI, a normal total cholesterol, or being young does not carry the same weight here. The thresholds are different because the risk is different.

What is actually different

The body composition row explains most of the rest. At the same BMI, South Asians tend to carry more visceral fat and less skeletal muscle. Visceral fat drives insulin resistance; muscle is where glucose is disposed of. Less of the latter and more of the former produces the metabolic picture earlier. BMI thresholds for Indians and waist versus weight cover the measurement side.

The thin-outside-fat-inside problem

The most practically important consequence is that a slim South Asian can be metabolically unwell, and will usually be told they are fine.

A person with a BMI of 22, a waist of 94 cm, a fatty liver, triglycerides of 220 and an HbA1c of 6.1% has a serious metabolic problem and a reassuring appearance. Nobody suggests they lose weight because they do not look as though they need to.

This is why waist circumference is the measurement to care about and why the signs of insulin resistance lists the signs that appear before glucose rises. It is also why reversing fatty liver matters: fatty liver in a slim person is common here and is a marker of the same process.

If you take one action from this article, measure your waist. Above 90 cm for men or 80 cm for women warrants a lipid profile, an HbA1c and a blood pressure check, whatever the scale says.

The lipid pattern, and why total cholesterol misleads

The characteristic South Asian dyslipidaemia is not simply high LDL. It is high triglycerides, low HDL, and a predominance of small dense LDL particles — which are more atherogenic than larger ones at the same cholesterol content.

Total cholesterol can therefore look acceptable while the pattern underneath is unfavourable. This is the strongest argument for looking at non-HDL cholesterol rather than total, and for apolipoprotein B where available, both covered in what your cholesterol numbers mean and the lipid profile test explained.

what raises triglycerides and raising HDL cover the two components individually. The short version: a triglyceride of 200 with an HDL of 35 is a meaningful finding even with a normal total cholesterol, and it points at insulin resistance rather than at dietary cholesterol.

Lipoprotein(a) deserves a mention because it is elevated more often in South Asians, is largely genetically determined, is not modified much by lifestyle, and is measured once in a lifetime. It is increasingly recommended for people with early family history, and it is rarely ordered in India.

What is actually modifiable

Having set out a discouraging picture, the useful part: most of the components respond to the same small set of actions, and the earlier they start the better they work.

• Build and keep muscle — resistance training twice weekly. This addresses the composition difference directly and is the most underused intervention in this population.
• Reduce visceral fat — a modest sustained deficit; the waist is the measure.
• Cut sugary drinks and refined carbohydrate — drives triglycerides and liver fat, per what raises triglycerides.
• Aerobic activity, 150 minutes weekly — the 10,000 steps number is a starting point.
• Stop smoking and keep alcohol low.
• Fix the diet pattern rather than single foods — a heart-healthy Indian diet.
• Screen earlier than Western guidance suggests — this is the one most people miss.

On screening: given earlier onset, a lipid profile, HbA1c and blood pressure check from the early thirties is reasonable with any risk factor or family history, rather than waiting for a milestone birthday. what HbA1c measures and what your blood pressure numbers mean cover what the results mean.

What to ask a doctor

• “What is my cardiovascular risk, and does the calculator you used adjust for South Asian ethnicity?”
• “What is my non-HDL cholesterol, and should I have apolipoprotein B measured?”
• “Given my family history, is lipoprotein(a) worth testing once?”
• “Should I be screened for prediabetes now rather than later?”
• “Is my waist measurement in the at-risk range for my ethnicity?”

The first question matters because several widely used risk calculators were derived in European populations and underestimate risk in South Asians; some have ethnicity adjustments and some do not.

And seek emergency care for chest pain or pressure, pain radiating to the jaw or arm, sudden breathlessness, or sudden weakness or difficulty speaking. Presentation can be earlier and sometimes less typical than the textbook picture, and delay is the main thing that worsens outcomes.

Where KABO fits in

The actions that matter here are building muscle, reducing visceral fat, cutting sugary drinks and screening earlier than Western guidance suggests. The last of those costs a blood test and is probably the most valuable thing in this article.

Protein intake supports the muscle-building part, and most Indian vegetarian diets fall short of the target. A KABO serving provides 25 g of complete plant protein with 26 vitamins and minerals, vegan and lactose-free. It is a tool for the protein side of the plan, not a cardiovascular product.

Frequently asked questions

Why do Indians get heart disease earlier?

A combination of more visceral fat and less muscle at the same BMI, earlier insulin resistance, and a lipid pattern of high triglycerides with low HDL. Onset is commonly about a decade earlier than in European populations.

Can I be slim and still at risk?

Yes, and it is common. A normal BMI with a waist above 90 cm for men or 80 cm for women, fatty liver or raised triglycerides indicates genuine metabolic risk despite appearance.

What BMI is overweight for Indians?

Overweight from 23 and obesity from 25, rather than the international 25 and 30, because metabolic risk appears at lower body weights in South Asians.

When should I start getting checked?

Earlier than Western guidance suggests. A lipid profile, HbA1c and blood pressure check from the early thirties is reasonable with any risk factor or family history of early heart disease.

Sources

• World Health Organization, cardiovascular disease and healthy diet fact sheets. who.int
• ICMR-NIN, Dietary Guidelines for Indians (2024). nin.res.in
• NHS, health conditions A to Z. nhs.uk