Hi @RedRosesPinkLilies
I'm very sorry to hear your diagnosis, but it's indeed definitely the case that some people do much better than expected. My prognosis was changed from poor to good following chemo (different cancer to you, but I mean prognoses can and do change). I am stage 3 (c I think) HER2 in breast and lymph nodes.
I know two ladies who are stage 4, one bowel and one HER2 breast, and they are both now in full remission. I have no idea whether that is possible with peritoneal cancer, but until I met those two I thought stage 4 meant it wasn't possible anyway - but these days things are changing fast in cancer treatment.
I haven't been on carboplatin, but I have been on paclitaxel. I found it much, much easier to be on than the chemos I was on before that (EC chemo: Epirubicin and Cyclophosphamide). I had felt absolutely terrible on EC, but much more normal on paclitaxel. I'd say the only thing I found hard on taxanes (I had paclitaxel then abraxane) was the neuropathy, that I got badly but I know several others who didn't get that at all. I ate and drank normally, and apart from the neuropathy I got, I'd say it was really fine.
I would be cautious about supplements. My hospital recommended oily fish twice a week when on chemo, and no supplements without checking with them first. Of course my cancer is not connected to the digestive system, so I imagine guidance could vary depending on where in the body and also the type. For example, I think hormonal breast cancer patients (who form 90% of breast cancers) are probably advised to avoid oestrogenic food, but mine is not hormone sensitive so I was just told about the oily fish. Penny Brohn recommend rainbow fruit and veg every day ie lots of different coloured plants. They also recommend lots of protein for the white blood cells.