Not everything in this list is science. Some are not science at all, just marketing. Diet pills or diet advertised in TV programs are not studied scientifically. Some may have some anecdotal basis like paleo-diet, most are just crazy sh**, but all of them haven't been studied scientifically because it simply takes time and money to prove that a diet works. And usually money is the biggest problem. The fat in your food does not necessarily make you fat, food industry makes you fat. They take the nutrition out of their food by processing it and adding sugar, salt and other cheap ingredients to make it taste better. The only science behind food industry is marketing. Which is the same industry behind the climate change denials ... Sounds like a connection here, huh