Hi
i havnt heard this product mentioned on here so far , but my GI gave me a suggestion of drinking something from Nestle called Modulen IBD , it is designed for crohns rather than UC , but might be worth a look. I have to get a prescription for this , not sure it is available without one
comes in a big tin like slimfast but bigger , 6 scoops with 200ml of water twice a day
it mixes up really easy and doesnt make me feel bloated or give any problems
it isnt heavy on energy or calories but must be far better than the standard energy drinks
good luck , be interested to know if anyone else uses it