The following fatal diseases and health problems can be caused due to obesity: 1. Certain types of cancers 2. Type II diabetes 3. Kidney failure 4. Liver infection 5. Enlargement of the heart 6. Osteoarthritis 7. Breathing problems/breathlessness 8. High levels of cholesterol 9. Sleep apnoea 10. Chronic body pain 11. High blood pressure 12. Coronary heart disease 13. Stroke 14.Gallbladder disease