Which are the four fruits that become poisonous to the body if eaten in the bridge?

According to experts, cutting the watermelon fruit into pieces and putting it in the bridge will lead to loss of its nutrients. If sliced pumpkin is placed in the bridge, bacteria will form in it. If banana leaves are placed in a bridge, the water that comes out of them will rot. Also, keeping fruits like mango, lychee, kiwi in the bridge will reduce the nutrients.