It is true that people need some fat, which is why getting below 5% fat is not only extremely difficult, but also dangerous. It's got to do less with cushioning organs and more with endurance. Females that have a very low fat percentage (some female athletes, bodybuilders, girls with eating disorders such as anorexia, my ex) can lose their periods. There is something called essential fat, which is as the word says essential for you to function like a human being - but it's a very low percentage. It's around 3-5% for men I think and 10-12% for women. You shouldn't have more than 20% fat if you're male or 25% if you're female. You can and about 5% above that will still be acceptable, but that doesn't mean you should.  As usual, this ham took science and warped it out of proportion to match its own, deformed, unidentifiable blob of a "body".