I think it really depends on people. I went gluten free for a while but it made me so miserable. I would say to avoid smok and alcohol and enjoy your food

I wouldn’t say I am strict per say but I have transitioned away from red meat except for the rare special occasion like an anniversary dinner, and reduced saturated fats where I can. I also have always tried to less processed food and closer to how things come from nature but I do that more because I am a tree hugger than changes due to MS.