Excess body weight increases cancer risk through inflammation, hormonal imbalances, and metabolic dysfunction.
Obesity is an established risk factor for multiple cancer types including breast, colon, endometrial, and pancreatic cancers. It promotes cancer development through hormonal disruption, chronic inflammation, and insulin resistance.
Obesity contributes to cancer development through several interconnected mechanisms: excess adipose tissue produces estrogen and other hormones that promote hormone-sensitive cancers, inflammatory cytokines from fat cells trigger chronic inflammation in tissues, and insulin resistance increases circulating insulin and insulin-like growth factors that promote cell proliferation. Obese individuals also have impaired immune function and higher levels of growth-promoting hormones. The increased caloric intake often associated with obesity provides excess energy for rapid cell division. Weight gain in adulthood specifically increases cancer risk independent of baseline weight, suggesting that the inflammatory and metabolic changes of obesity are particularly harmful.
Obesity promotes cancer through hormonal disruption, chronic inflammation, insulin resistance, and impaired immune function.
Achieve and maintain a healthy BMI (18.5-24.9) through balanced nutrition and regular physical activity. Focus on whole plant foods, limit processed foods high in calories and low in nutrients, and aim for at least 150 minutes of moderate exercise weekly. Even modest weight loss (5-10%) can reduce cancer risk.
Maintaining a healthy weight through proper nutrition and exercise is one of the most powerful cancer prevention strategies.
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