It was a really useful talk by Stephanie, a specialist dietician, on Saturday.
She talked about the symptoms of reduced appetite, nausea, regurgitation and vomiting after the surgery; taste disturbance and food aversions, diarrhoea, steatorrhoea (ie oily, fatty stools that don't smell right - when you do not absorb fat); dumping syndrome, tiredness and pain, reduced intake and weight loss.
People who have had this surgery, especially gastrectomies, are likely to be low in vitamins and minerals, especially vitamins D, B12, A, ferritin and zinc, so it is worth going to your GP to have a test for these levels in your system.
One other thing that might be worth thinking about is low glycaemic index foods. Here is a link to a website: sosg.info/diet.aspx