IN MODERN NUTRITION MEDICINE, WHITE IS CONSIDERED TO BE RICH IN CARBOHYDRATES, FOOD FIBRES, PROTEINS, FATS, NUCLIDES, VITAMIN E, POTASSIUM, SODIUM, ETC., AND SOME ORGANIC NITROGEN IS PRESENT IN THE FORM OF AMINO ACID, SO IT TASTES GOOD. BUT IT IS TOO MUCH WHITE HERBIC ACID, SO IT HAS TO BE PRE-PRELIMINARYLY TREATED, EITHER BY WATER, OR BY BOILING OR COOKING. HOWEVER, POTATOES CAN NO LONGER BE EATEN ONCE THEY HAVE GROWN OR ARE BLUE. BECAUSE IT CONTAINS OVERDOSES OF RONIN, IT IS HIGHLY TOXIC AND CANNOT BE EATEN。