The most common kiwi juice side effects are allergies to kiwis. Symptoms of an allergy may manifest differently in different people. Some people may experience only a minor oral irritation, but a kiwi allergy can lead to anaphylaxis in others. Hives, swelling and skin rashes are also common allergic reactions. Some people also report tingling or itching in the mouth along with localized swelling of the tongue, mouth and lips when drinking kiwi juice.

Potassium and Vitamins C and E

Kiwis are high in potassium and vitamins C and E. High levels of these nutrients can alter serotonin levels in the brain or triglyceride levels in the blood.

Other Kiwi Juice Side Effects

Some people have reported vomiting, nausea, diarrhea and dysphagia as potential side effects.

In severe kiwi juice side effects cases, acute pancreatitis has been reported.