There's no way I could do justice to the complex
mixture of phytochemicals in those plants, but various glucosinolates (really, their isothiocyanate products) and quercetin from kale; the anthocyanins from blueberries; mangiferin from mangos; and gallic acid, ellagic acid, quercetin, kaempferol from
amla all induce the «adaptive stress response» as described above.