Pretty sure Snake Diet did the urine stuff as well. Now he is promoting eating sugar like durianrider has for years. But even in durianriders' time when he was popping on YouTube you had people who got rail thin and others who got fat. The fat ones were told they did the diet wrong. You're going to see that crap again now with this promotion probably.
Diet really depends on the person. I do agree if you have good sugar metabolism I think sugar can make you very skinny. If not you get fucked with candida, low metabolism, bloating, etc.