Poisonous Ingredient saponins and glycoproteins The highest concentration is found in the rootstock, next in the leaves and stems, and the smallest amount in the fruit.
Cooked berries are edible.
Roots should never be eaten. Deaths have been reported. Improper cooking of leaves or eating some of the roots with the leaves can cause serious poisoning. Eating greater than 10 uncooked berries in a child can cause serious consequences. They will instruct you if it is necessary to take the patient to the hospital.