The C Word

Anyone else see the cancer documentary "The C Word"? Basically it is about taking a holistic approach to cancer treatment incorporating diet, exercise, lowering stress levels and improving social interaction. I just watched it on Netflix but it seems to also be available on You Tube. Here's the trailer for any who might be interested.

https://www.youtube.com/watch?v=u4aww8jcg8i

I would consider all that to be alternative therapy of limited value other than keeping the host organism in optimum health to endure the traditional therapies (surgery/rad/chemo). Or possibly as adjunctive therapy so long as it does not interfere with primary therapy, and is approved by the treating physician.