This document discusses obesity in Malaysia. It defines obesity as excessive fat accumulation in the body. Risk of chronic disease increases with a BMI over 23. Obesity is classified by BMI and risk levels. The prevalence of overweight and obesity in Malaysia has increased from 20.7% in 1996 to 31.6% in 2016. Obesity is caused by a global shift to high fat, high sugar diets and decreased physical activity. Critical periods for weight gain include puberty, menopause, pregnancy, starting college, and various life stages for both men and women. Obesity leads to many health issues like heart disease, diabetes, and cancer. Action needs to be taken to address obesity before it's too late.