I'm vegan so that I'm not paying anyone to stab an animal to death and end their brief torturous life they were bred into for no reason. If it were worse for the climate I'd still do it.

I lost 80 lbs in my 30s and plateaued at 155 lbs and 5"9. I'm in my 40s now. I lost it by adopting a whole foods plant based diet and sticking to it. The book I read was called the starch solution by Dr. McDougall. The guy himself is a weird boomer but he is right about how to eat. I've stayed trim for 5 years now and I prefer eating this way and no animals need to be killed.