Isn’t it difficult to stay very low carb on a vegan diet, especially if you want to get a moderate amount of good quantity protein?
It seems easy to stay away from the clearly bad stuff (sugar, refined grains, refined seed oils, processed meats) on a vegan diet, but getting sufficient protein from beans, lentils, whole grains, and some vegetables seems hard while still keeping carbs low.
The advantage of meat, fish and eggs is the high quality protein with no or little (eggs) carbs. Unfortunately, it isn’t always so easy to get meat and fish from animals that ate their natural diet and are not contaminated (PCBs, heavy metals, GMO feed, etc.)
I like meat and fish but would also happily eat vegan if I could figure out how to eat vegan, get the quality protein and keep blood sugar as stable as when eating meat, fish and eggs.