The doctor though should be able to provide access to a clinical dietician to help think plan the diet and think through the implications. I imagine some chem

The doctor though should be able to provide access to a clinical dietician to help think plan the diet and think through the implications. I imagine some chemo and targeted drugs could interfere with lipid metabolism and there is also a risk of acidosis. So I would ask the doctor. It will probably be a case of "we don't know" but diet is basically the one variable under your control besides listening to the doctor. There's one paper on it from a completed clinical trial. https://www.ncbi.nlm.nih.gov/pubmed/27525031?dopt=Abstract https://www.ncbi.nlm.nih.gov/pubmed/27525031?dopt=Abstract Also clinical trials using metaformin during cancer treatment. You might consider enrolling in one of these if it is feasible. https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/metformin-hydrochloride https://www.cancer.gov/about-cancer/treatment/clinical-trial...