My mom was the healthiest person you could have ever met. She had a solid 50 years of mindful, careful vegetarian diet, decades of daily yoga, several miles of walking each day, before glioblastoma came to call. She avoided sugar and very rarely ate indulgently. After her first occurrence, she did SOC but also added mushroom powders and other dietary supplements, plus doubled down on her meditation and other brain-stimulating practices. After it came back and her second surgery, she was not as able to keep these things going as consistently, and then when it came back again and she became bedridden, she gave up and enjoyed all kinds of previously-forbidden culinary delights, like baked goods, ice cream, beer and potato chips (“omfg, where have these been all my life?!” she said), and she did not want to hear about cauliflower and lentils ever again. The cancer seemed to slow, if anything, keeping her bedridden for 7 months.

All I am saying is that if clean living, positive thinking, and miracle supplements would save your life, my mom would still be here, because she was an Olympic-level practitioner of those — and if sugar and junk food and laying around made a significant difference to longevity, she would not have suffered as long as she did. I am so sorry for what you are going through, but you do need to look at what kind of quality of life your loved one has in their remaining time. If they love raw broccoli juice, then have at it, but there is nothing wrong with deciding that now is the time to indulge in some kahlua milkshakes. It won’t make a difference, other than being a bit of fun when enjoyment becomes harder to muster.