It's important to note that in the method of weight loss discussed here, you don't have to lose a single atom from your own body, but your weight can go down by an almost arbitrary amount. For example, Yuri Gagarin had his weight reduced to almost 0kg, together with his rocket, while not losing a single atom (talking about the indie of the cabin, of course).

It takes a lot of effort, but you don't have to feel hungry, and the results will beat exercise by orders of magnitude in terms of pure weight loss!