Vitamin C, amino acid lyciene , sulfur rich foods, greens such as cilantro for metal detox, sleep, lemon in water, ketogenic diet see my blog at clubalthea.
During the last stage of my father’s lung cancer, we juice green papaya and apple. It only gave him 9months from the 3 months that the doctor guessed.
Each person is different. We wished we know then what we know now.