Yes, that’s right! Men and women have different body structure with different hormonal secretion. I mean body metabolism. Obviously they need distinct types of food habit. The same age of boy and girl vary in weight too much. Male bones are stronger than woman. Women need more of calcium. That reduces fast in woman. Men do more of physical work in their lifespan, thus they don’t easily get fat. But women do less of physical work in the life span, and all get fat after a particular age. Separate diet is required for them, not only for long life but also for maintaining good health.