Good nutrition may help prevent cancer but if you are really screwed up it may not do the miracle you need.
Pathogens underlie many cases of skin cancer, especially melanoma.... virus.
Pathogens set in when the terrain is disturbed, as from too much radiation from the sun,,, but the sun IS NOT A FACTOR WITH MELANOMA
I have seen many cases of melanoma where the sun don't shine. They are lying to you. The best defense is having high levels of vitamin D3 and sufficient Iodine to keep your thyroid functioning well. Due to climatic change and ozone layer depetion too much sun may be dangerous. Short 15 minute exposures are best.. Supplement with Biotic D3 and get your levels checked. If you have a history of cancer you want them between 70 and 90.
There is a nice video on youtube of a melanoma on the ear going to full cure with the application of topical Lugol's iodine.
The woman was a patient of Dr Simoncini. Iodine cures melanoma because it is a powerful antifungal, antibacterial, antiviral. When tumors get large there may be more than one type of pathogen involved due to severely disrupted terrain.