Why is Singapore’s healthy BMI only up to 22.9?

Asians tend to develop diabetes and heart disease at lower BMIs, so HPB uses stricter cut-offs than the global standard: healthy 18.5–22.9, moderate risk 23.0–27.4, and high risk 27.5 and above.

My BMI is normal but my waist is large — is that a problem?

Yes. Abdominal obesity — a waist of 90 cm or more for men, or 80 cm or more for women — raises risk independently of BMI, so waist size adds important information.

How fast should I try to lose weight?

About 0.5–1 kg a week is safe and sustainable. Faster loss is usually water and muscle rather than fat, and it tends to rebound.

Are slimming pills a good shortcut?

No. HSA has repeatedly found slimming pills, teas and coffees adulterated with banned substances that can cause serious harm. Avoid them and focus on sustainable diet and activity changes.

Do I need to see a dietitian to lose weight?

Consider one if you have a lot to lose, a high-risk BMI, or weight-related conditions such as diabetes or high blood pressure. A GP can refer you.

Healthy Weight & BMI: Asian Cut-Offs (Singapore)

Written & reviewed by the BestDoctors.sg editorial team · Last updated 22 Aug 2026 · General information, not medical advice

Quick answer. BMI (weight in kg ÷ height in m²) is a quick screen for whether your weight is in a healthy range. Singapore’s Health Promotion Board uses lower Asian cut-offs than the global standard, because Asians develop diabetes and heart disease at lower BMIs: healthy is 18.5–22.9, moderate risk 23.0–27.4, and high risk 27.5 and above. Waist circumference is a useful add-on, because abdominal fat is especially risky. Aim for gradual, sustainable loss of about 0.5–1 kg a week through small, lasting changes – not crash or fad diets – and avoid unregulated slimming products, which HSA has repeatedly found adulterated.

A healthy weight lowers your risk of many conditions at once – but the numbers that matter in Singapore are stricter than the global ones, and how you get there matters as much as the target.

What BMI is (and isn’t)

BMI estimates whether you’re a healthy weight for your height, but it doesn’t distinguish muscle from fat – so very muscular people can read high. It’s a screening tool, not a diagnosis, and works best alongside waist measurement and your other health markers.

Singapore’s Asian cut-offs

Because Asian Singaporeans develop metabolic disease at lower body weights, HPB defines a healthy BMI as 18.5–22.9, with 23.0–27.4 as moderate risk and 27.5 and above as high risk – about two points lower than the international 25/30 thresholds. So a BMI that looks “fine” by global standards may already carry raised risk here.

Waist size matters too

Abdominal (visceral) fat is especially harmful to metabolism. A waist of 90 cm or more for men, or 80 cm or more for women, signals raised risk – even if your BMI looks acceptable – so it’s worth measuring both.

Why excess weight is harmful

Carrying too much weight raises the risk of type 2 diabetes, high blood pressure, high cholesterol, heart disease and stroke, some cancers, obstructive sleep apnoea, and joint problems such as knee osteoarthritis.

Losing weight safely

Aim to lose about 0.5–1 kg a week by combining a modest calorie reduction with more activity. Use My Healthy Plate for portions, be aware of sugar and sugary drinks, and build activity into daily life (the 150–300 minutes a week). Small, permanent changes beat extreme diets that rebound.

When to seek help – and what to avoid

See a doctor or a dietitian if you have a lot to lose, a high-risk BMI, or related conditions such as diabetes or high blood pressure. Avoid fad diets and unregulated slimming pills, teas and coffees – HSA regularly warns that such products are adulterated with undeclared, potentially dangerous substances (see health supplements and traditional products).

Related healthy-living guides

Sources

HealthHub (HPB), Singapore — BMI and abdominal obesity (Asian cut-offs 18.5–22.9 / 23.0–27.4 / ≥27.5; waist ≥90 cm men, ≥80 cm women).
HealthHub (HPB) — My Healthy Plate and weight-management guidance (portions; sustainable change).
Health Sciences Authority (HSA) — alerts on adulterated slimming products.

General information only. This guide offers general healthy-living information for Singapore and is not personalised medical advice. If you have a medical condition, take regular medicines, or are pregnant, check with your doctor before making big changes. Recommended national screening is available through Screen for Life / Healthier SG. In a medical emergency, call 995.

Achieving a Healthy Weight & Understanding BMI (Singapore)