I'm on day 1 of my pre-of diet today -- full liquid for 10 days. Protein shakes, sugar free jello, broth soups (no cream soups), crystal lite, skim milk, apple/orange/grapefruit juice (up to 2 cups a day combined juices and milk + shake amounts of milk). Could be a long 10 days. My surgeon says it is especially to shrink the liver to make the surgery easier and give a boost for those first few days.