Sample size: 20 people. (Okay what? Are you even trying guys? Releasing something about the the human metabolism with a sample size of 20? Shame on you!) Concluding a weight gain because Ghrelin levels are raised? What? Do you even science? Ghrelin in the first place only tells your brain to look for more food because it signals an empty stomach.
Studies on Nutrition don't get me started...
Once you start there, you need to look for evidence to switch to eating pizza and burgers and sodas... which there isn't any convincing evidence, just a constant stream of studies about how bad junk food is. It's much less overwhelming to look at it this way I think.
the fat study (seven countries) was largely debunked though that doesn't mean all fats in any combination with other macros are good. that sugar is detrimental to your health seems to be a consensus but that doesn't mean other substances can't be bad.
Is drinking water really that absurd?