Lychee and other foods eaten together is rarely poisoned, but if the diet is not properly matched, the nutritional value of the food will be lost. The following collocation is not reasonable: 1, lychee and cucumber, because lychee is rich in vitamin C, and cucumber contains enzymes that can break down vitamin C, if the two foods together, lychee in vitamin C will be destroyed; 2, lychee and carrots, carrots contain vitamin C enzyme substances, vitamin C will be destroyed; 3, lychee and animal liver, animal liver is rich in metal Atoms, metal atoms will let the lychee in the vitamin C is oxidized, the nutritional value will be reduced; 4, lychee and pumpkin, pumpkin also contains a vitamin C decomposition enzyme substances, eat together will let the nutritional value of lychee is affected.