Its more than that. You need cholesterol for brain and nerve health, creatine, iron, zinc and saturate fats. All are very easy to get in meats yet no so easy in plant form. There is also a host of fat soluble vitamins (k1 and k2 come to mind) that are much easier to get in meats and animal fats. B12 isn't that easily absorbed in pill form. Lozenges maybe better but you may need shots.
I think lack of fats my be why vegans often have that skin problem. It has something to do with skin health.
I think lack of fats my be why vegans often have that skin problem. It has something to do with skin health.