Supposedly you can live on nothing but "Ensure" type drinks and be totally fine. Well, I have looked at the ingredients of Ensure and it's nothing but protein powder, sugar/corn syrup, oil and vitamins. Doesn't seem particularly healthy to me (in fact it looks horrible to me ... can you believe they give this stuff to sick people?) It doesn't even have any fiber. I have been drinking homemade blended things consisting of whey protein powder, fruit, and ground flaxseeds. Occasionally I add other stuff like almond butter or rice bran. And I take a multivitamin. Do you think something like this is okay as my primary source of nutrition? I am not going to get into my whole story here, but I've been very sick, no one can diagnose it, but I have trouble eating (no appetite, feel nauseous and really full all the time) so I am pretty much just consuming liquids these days.
I used to eat tons of vegetables so I feel weird about not having any veggies... when I do feel like eating real food, I eat some steamed broccoli or green beans or something. I have also been experiementing with blended raw veggies, like gazpacho soup.