This is, at least, an appealing simple explanation for obesity. Much simpler than "Impurities in high-fructose corn syrup disrupt a particular metabolic pathway in the liver causing ... increased fat storage". Simply: humans crave protein and will eat things that taste like protein until they have enough.
I hereby suggest Occam's diet: avoid things that taste like protein but aren't.
I hereby suggest Occam's diet: avoid things that taste like protein but aren't.