1, kelp + pig's blood: eat together will be constipated, because kelp and pig's blood are mutually exclusive, the two eat together is not conducive to digestion and absorption.

2, kelp + licorice: both eaten at the same time will produce toxic substances.

3, kelp + grapes: grapes contain acid, kelp contains iron, acid will affect the body of iron absorption. Also affects calcium and iron absorption. And if the arsenic in the kelp is not washed clean, the vitamin C in the grapes and arsenic are prone to form toxic substances.

4, kelp + persimmon: persimmon acid and kelp in the combination of substances, will generate insoluble conjugate, may lead to gastrointestinal discomfort.

5, kelp + tea: tea contains acid and kelp in iron may react, this acid is not conducive to iron absorption.