We had a arch-vegaNazi keyboard played on one of my bands. He was alright to be around - as long as talk never turned to food. Then he was insufferable.
I always thought it hilarious that he and his spindly-boned wife were all the time extolling the gargantuan heal benefits of the lifestyle - all the while they were pallid and sickly looking and never seemed to have any energy or spark.
played=player
You would probably like The Big Fat Surprise by Nina Teicholz. She’s an exVegan that got tired of feeling like crap and actually looked into what she was doing to herself. Also found along the way that saturated fat is not bad.