this is one of my peeves;
people who suggest that dieting on shakes being the biggest part of your diet, don't get as shredded as someone who diets eating solid meals all the time.....they say that your thyroid slows down because you are not getting any solid food.
when protein powder and water hit your stomach, the water and protein seperate, the protein is digested as a SOLID......therefore you are getting solid meals just "drinking them".
i asked a doctor i know about this, and that was his reply, he says there IS no difference between drinking OR eating your meals.
if you diet on shakes though, you have to have a junk day once a week to keep your body "guessing" ....this (junk day) keeps your thyroid working efficiently.