It is easy to come across ‘information’ online about preventing or stopping cancer through diet. Much of it is bogus, sometimes well intentioned but sometimes basically a marketing con.
This is a link to a video from the International Myeloma Foundation.
https://www.myeloma.org/videos/living-well-myeloma-can-nutrition-improve-quality-life-outcomes-myeloma
Therefore, it is based on medical trials, and is from a reliable source.
In summary, it recommends a diet emphasising plant based food and minimising junk food.
Regards
Rabbit
