Nutrition and Food Sciences

Obesity and its Causes

Obesity is a condition characterized by an excessive amount of body fat, which significantly increases the risk of various health issues. It often results from consuming more calories than are burned through physical activity and daily activities. A person is considered overweight if their body mass index (BMI) exceeds 25, and obesity arises when there is a prolonged calorie surplus that the body cannot utilize. Common causes include an unbalanced diet, lack of physical activity, an unhealthy lifestyle, environmental factors, and behavioral aspects. Overeating and insufficient exercise are the primary contributors to obesity, particularly when calorie-dense foods high in fats and sugars are consumed regularly. Obesity is a complex medical condition, not merely a cosmetic issue; it elevates the risk of several serious health problems, including heart disease, diabetes, high blood pressure, and certain cancers.

• Insulin resistance
• Sedentary life
• Gut bacteria
• PCOS in women