Female vs. Males. 3-4 inches shorterWeighs 25 30 lbs less10 15 lbs more fat tissueBoth Men and Women\'s increase with age. Female vs. Males. Both Men and Women\'s Body Mass Index increase with age. Ideal Body Fat. 20 27% for femalesObese over 28 19% for malesObese over 23%. Types of Fat in the Body.