regarding phytosterols...
i'm almost a vegetarian. my total cholesterol levels are exceedingly low, and my ldl:hdl ratio is truly outstanding. the high ratio of plant to animal cholesterol in my diet is the reason why.
that said, it seems to be a reason to increase my vitamin a and vitamin e levels to roughly 200% of the rdi. so, my feeling that i was running low on these vitamins may have been rather astute.
and, that's something vegetarians should be aware of that i was not previously - we focus mostly on the b12. but, you need to get your e and a up, too, because your inherently low hdl levels make it harder to transport them, and you need to overcome that with brute force.
make sure you're eating the right produce to deal with that.