Does she currently smoke cigarettes, or did she in the past?
Pure raw Paleo is a hard sell. If she isn't going for that, you might try suggesting something easier for people to consider, like lightly cooked Paleo with lots of raw foods.
I don't have much info specific to lung cancer, but I do have some general leads.
Hormesis (gettingstronger.org/hormesis) reportedly fights cancer and aging and promotes autophagy and improved health, longevity, strength and resilience.
Hormetic therapies:
> cryotherapy: cold shock and heat shock therapy, or a combination to broaden the beneficial stressor range
> plant-based substances (mildly toxic; ex: resveratrol in in berries and grapes, which reportedly stimulates SIRT)
> radiation of various kinds (such as sunlight)
> taking very small doses of a number of toxic substances (not something most people will not want to try, aside from plant substances)
> intermittent hypoxic therapy: low oxygen turns on hormetic hypoxia signaling; it may promote blood oxygenation via hormesis (however counter-intuitive this may seem); a combination of intermittent hypoxic therapy with intermittent oxygen therapy might theoretically improve the hormetic effect by broadening the range of beneficial stressors; ex: mountain climbing/camping and breath-holding
> intermittent glucose, fructose and protein fasting (cancer cells feed on glucose, fructose, and certain amino acids like glutamine)
> intermittent, high-intensity exercise: High-intensity interval training (HIIT), also called High-Intensity Intermittent Exercise (HIIE), such as sprint interval training (SIT)
Cellular/Tissue Hypoxia in Cancer
It's rarely reported, but "decreased blood pressure and low oxygen saturation" predict "death within 48 hours with a 95.0% positive predictive value and a 81.4% negative predictive value"
http://www.news-medical.net/news/20120912/Blood-pressure-oxygen-saturation-predict-death-in-terminally-ill.aspx. These tests are cheap and effective but don't generate much revenue, so they are rarely used.
Why is low oxygen a marker for death? One likely reason is that cancer cells thrive in low oxygen. Why is that? Cancer cells are cells that have reverted to their primordial origin, which was the days before oxygen when all organisms relied on carbs and/or amino acids to survive and oxygen was toxic to them.
For more info, see:
Response to Jim Watson’s wager challenge
by Vincent Giuliano
http://www.anti-agingfirewalls.com/2013/04/29/response-to-jim-watsons-wager-challengeCan autophagy promote longevity?
Frank Madeo, Nektarios Tavernarakis and Guido Kroemer
http://www.nature.com/ncb/journal/v12/n9/full/ncb0910-842.htmlTargeting hypoxia in cancer therapy.
http://www.ncbi.nlm.nih.gov/pubmed/21606941http://en.wikipedia.org/wiki/Tumor_hypoxiaHypoxia in cancer: significance and impact on clinical outcome.
http://www.ncbi.nlm.nih.gov/pubmed/17440684The dietary flavonoid kaempferol effectively inhibits HIF-1 activity and hepatoma cancer cell viability under hypoxic conditions.
http://www.ncbi.nlm.nih.gov/pubmed/20558139Mitochondrial Genetics and Cancer
The Warburg Phenomenon and Other Metabolic Alterations of Cancer Cells
http://tinyurl.com/pqhfhp3Carnitine (found in meats) promising for the treatment of cancer
http://carnitine-cancerpromise.com/detail.html