Frequently Asked Questions
What is a healthy BMI range for adults?
According to WHO classifications, a BMI of 18.5–24.9 is considered healthy for most adults. BMI under 18.5 is underweight, 25–29.9 is overweight, and 30 or above is obese. Note that BMI has limitations — it doesn't account for muscle mass, bone density or fat distribution. Athletes and highly muscular people often have elevated BMI despite being healthy.
How many calories should I eat per day?
Daily calorie needs vary based on age, sex, height, weight and activity level. A sedentary adult woman typically needs around 1,600–2,000 calories, while an active adult man may need 2,500–3,000 calories. To lose weight, most health authorities recommend a deficit of 500 calories per day. Our Calorie Calculator provides a personalised estimate.
Is BMI accurate for Australians of Asian background?
Standard BMI thresholds were developed primarily from European populations. Research suggests that people of Asian background may have higher health risks at lower BMI values. Some health guidelines use adjusted thresholds (e.g. overweight starting at BMI 23 for Asian populations). Consult your GP for an assessment appropriate to your background.
How do I calculate the calories I need to lose weight?
Start by calculating your Total Daily Energy Expenditure (TDEE) — your maintenance calorie level. To lose approximately 0.5 kg per week, subtract around 500 calories from your TDEE. Going below 1,200 calories (women) or 1,500 calories (men) is generally not recommended without medical supervision. Our Calorie Calculator estimates your TDEE based on your details and goal.