Could it be caused from lifestyle factors that change with coffee. the first examples that come to mind: Coffee decreases appetite, which could reduce overeat

Could it be caused from lifestyle factors that change with coffee. the first examples that come to mind: Coffee decreases appetite, which could reduce overeating, which could be linked to the noted reduction in type 2 diabetes which can be caused by eating too much sugar. Similarly could it be that coffee increases activity which if used for exercise both reduces weight as well as improves the body's ability to manage blood pressure?