Gr09, for the first couple of weeks after the bypass you will be on simple fluids only (water, NAS squash, Etc). If your provider has the same instructions as mine, you will be expected to consume by tiny sipping 125ml every hour for 16hors a day for two weeks - nothing else. In my experience it will take three months to get back onto solid foods which will be introduced after week6. During that time you may struggle to eat the tiny portions so getting fluids in should be done either side of your three 'meals' a day - a meal is a portion of solid food the size of an egg