Of course, but personally I find it hard to eat too much of a ‘nut’ butter. I did keto for some months and was, in fact, almost always nauseatingly full from all the fat.
Well, that J over there might be the trick. In keto I wouldn’t use jelly. I ate whatever fats and bits of protein I wanted, but it turns out that you’re full all the time and end up eating less (~2.2k calories vs my median of 2.6k).