Do long fasts or poor refeeding lead to cancer?

This mom, Olivia Cohen, engaged in three(3) nonconsecutive 42 day fasts. I believe she had a week break in between. I recently came across this video of her after she suffered leukemia, https://www.youtube.com/watch?v=Y8_Hqkf9bgo. For those who cannot watch the video it shows that she put on a significant amount of weight, and seems to be in remission from her cancer. Her children are playing wonderful, and they seem very happy and joyful. Her weight gain was shocking. I know she lost her husband several years ago and became a widow with 10 children. I have been thinking about what may have lead to the weight gain. I am curious if her refeeding or the duration of fasts played a part in her cancer.

I remember this discussion thread about her, https://www.curezone.org/forums/am.asp?i=1431177, and many stated they are concerned her fasts would produce lasting effects that were not good for her.

Do you think the 120 days along with the refeeding of steak lead to her cancer and subsequent weight gain?