Cancer patients should be vegetarian, avoid meat, avoid overnutrition (should be hungry), especially avoid getting angry, otherwise the treatment will be difficult to be effective! Water chestnut was called "water chestnut" in ancient times, also known as water chestnut. Water chestnut is sweet and cool, non-toxic, and has the effects of disinfection, antipyretic, diuretic, breast-promoting, thirst-quenching and hangover-relieving. Every day, add two bowls of clear water to two ounces of fresh carapace (or half-dried carapace), and slowly fry until a bowl of water is ready to drink. It needs to be taken for a long time for two years. Four-cornered rhombus has the best anticancer effect, followed by two-cornered rhombus and lake rhombus is the worst.