Another great talk on You Tube by Dr. Colin Champ at The IHMC...his second on Cancer and Nutrition. This one is titled:
Cancer Prevention Through Diet - Tangible Takeaways

https://youtu.be/EWt1HNudyKM

He starts by reviewing many of studies that drive common dietary cancer advice , e.g. High dietary fat increases breast cancer risk, and how they were wrong. Like the saturated fat studies and Taubes criticism of those epidemiological studies in light of the new AHA advisory, he shows where they went wrong. Trans fats and Omega -6 fats, especially when heated, are a problem; the saturated fats, can be a healthy part of an anti-cancer diet. The end of his talk are the "Tangible Takeways"...what should you eat? What does he eat? And not eat (fasting is a key component in the cancer diet world) For the possibility of cancer prevention?

I'm a big fan of Dr Champ. His first lecture at IHMC, Augmenting Cancer Therapy with Diet: Have We Found a Sweet Spot? and his recent STEM-talk interview are also good. https://www.ihmc.us/stemtalks/ Episode 18, The right Nutrition and Exercise can help treat cancer.