Just keep an eye on your protein, albumin, and prealbumin levels on your labs with stopping the shakes. I know multiple people, including VSGers, who saw their protein markers dropping even though they were getting plenty of protein through food. I'm one of them - I have a VSG plus just a little malabsorption, but I was eating around 120-150 grams of protein from food every day and still saw my protein slowly sinking on my lab results. The only way for me to keep it up is by including protein shakes - it must just be because the protein in the shakes is so much easier to absorb.
Highest known weight: 324
Weight on morning of DS surgery: 308.5
Got down to about 185 before pregnancy;
Benjamin David born March 24, 2012, 7 pounds 11 ounces