Evidence does not support the commonly expressed view that some obese people eat little yet gain weight due to a slow metabolism. On average obese people have a greater energy expenditure than normal weight or thin people and actually have higher BMRs. This is because it takes more energy to maintain an increased body mass. Obese people also underreport how much food they consume compared to those of normal weight. Tests of human subjects carried out in a calorimeter support this conclusion.
Diet and obesity
Alcohol and sex
Alcohol and weight
Smoking and pregnancy
Obesity and the environment
Diet and cancer
Alcohol use and sleep
Diet and attention deficit hyperactivity disorder