IF you find a good doctor, be sure he is one that has your best interest in mind.
Shakes on the shelf are poision practicly, mostly sugar, and just crap. If you are going to drink a shake, drink Dr. Schultz's Superfood. It is pure nutrition and will absorb, the other shakes hardly have any nutrition at all--and yes your probably correct that that little bit is not even being absorbed. It is causing bloating and is very hard on your system. Another thing you can also do is to take coconut oil, for those that are overweight it makes them thinner, for those that are underweight it makes them larger. It is very easy for me to just eat off the spoon!! :) You might like to read Bruce Fife's Eat Fat, Look Thin on good nutritios food to eat to make you healthier. For now you can also get a juicer and drink your food. Carrot, beet, and Celery is very building for the blood, fruit juices are cleansing, and a juiced salsa is delicious!! This will give you great nutrition while building your body back up to where you can accept full solids. You might also look into Pure Essence Labs products, they are quite awsome at helping the body to heal. Best to you, Caitlin Lorraine