I went low carb - and moderate fat and hi protein and have lost tons of weight.
it works. when the gov’t started telling people that too much protien wasn’t good, eat more carbs, I blame them for all the obesity. Plus making sugar so expensive they switched to highfructose corn syrup.
I'm an expert on that diet and also the sleeplessness and paranoia that comes with it for me. Could just be me but I remember reading something about competition for amino acid precursors of serotonin in crossing the blood brain barrier, specifically Trytophan. It's a big one.
The bad part is that people around me had to tell me about the personality changes. Once had a soft pretzel stuffed in my mouth by my lady friend.