The document discusses obesity and healthy eating. It states that obesity means having too much body fat and can be dangerous to health. Over 25-30% of people in Poland may have a weight problem. Obesity is measured by body mass index (BMI) which is a ratio of weight to height. Most common causes of obesity are eating too many calories and not being physically active enough. A balanced diet according to the nutritional pyramid is recommended to avoid health issues like diabetes, high blood pressure, and early death from heart disease or stroke.