What is overweight ? Overweight is a multifactorial problem ascribed to heredity, age, sex, diet, lifestyle, psychology and behavior. It is excess of fat storage rather than weight with more than 25% of total body fat in men and 30% in women. Is weight loss same as fat loss?Weight loss refers to losing kilos on the scale either from muscle, fat or water while fat loss, isn’t much about the scale but about getting rid of body flab, losing inches in all the right places and looking slimmer.