White Mulberry fruit and leaves are not poisonous to humans or animals. In fact, White Mulberry leaves are often used as food for silkworms and the fruit is enjoyed by many animals, including birds and squirrels. However, the unripe fruit of the White Mulberry contains a sap that can cause skin irritation, so it is important to wear gloves when handling unripe fruit. Additionally, some people may experience an allergic reaction to White Mulberry pollen. Overall, the White Mulberry is safe for consumption and poses no significant danger to humans or animals.