I found that if I eat more than 20 net carbs per day, I gain. It doesn't matter if I'm eating meat or not, and of course, that's just me.

My entire family is over 300 pounds, except me. I tried a few diets before I went low carb, and started on Atkins Induction, way back when Bob Atkins was still alive.

When I tried to move to maintenance, I would gain wait.

Now they call what I eat, ketogenic, or keto for short.

We all have to find out what works for us.

Personally, I don't think vegan is a healthy diet, but then neither is the S.A.D.

Good luck in your quest.