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by dfawcus 981 days ago
Isn't the idea that fasting is not starving the non-cancer cells, it if forcing them to switch over to fat ketone bodies as their fuel source, rather than glucose? Plus that the suggested fasting for chemo is intermittent, say a day or two before treatment, and during. Then eat again after treatment (when no longer nauseous).

So as long as one has some body fat, and the metabolic flexibility to access it, fasting should not cause wasting, as those normal cells are not starving?

2 comments

> So as long as one has some body fat, and the metabolic flexibility to access it, fasting should not cause wasting, as those normal cells are not starving?

Wasting occurs in cancer patients whether they're fasting or not! The nutrients the patients need are drawn off by the cancer.

I see no reason to believe that cancer patients would experience less wasting if they stopped eating...?

Agree. Ask your doc if you can fast during chemo roughly 1 day before until 1 day after chemo (depends on chemo drugs). Fasting mitigates somewhat chemo side effects like water retention, vomit and damage to healthy cells. During fasting fat burning / ketosis at least stresses cancer cells.