The recommended dose of blackcurrent juice is 1.5 liters per day, because safety has not been reliably demonstrated when this juice is ingested in large quantities. Some individuals report blackcurrant juice side effects, and the juice is not recommended at all for persons suffering from some medical conditions.

Diarrhea

Individuals with sensitive digestion may report diarrhea or mild gastrointestinal upset upon drinking large quantities of this juice.

Do You Suffer From High Blood Pressure?

Drinking more than 1.5 liters a day is not recommended for people who suffer from high blood pressure as blackcurrent juice contains gamma-linolenic acid, which can alter blood pressure and counteract the effect of blood pressure medications.

Blackcurrant Juice Side Effects For People That Suffer From Blood Clotting Disorders And Venous Disorders

Blackcurrant juice contains anticoagulants, so it is not recommended for persons who suffer from blood clotting disorders, such as hemophiliacs. Similarly, the active ingredients in blackcurrant juice may increase peripheral blood flow and circulation, so it should not be consumed by those with venous disorders.

Other Negative Interactions

In addition, blackcurrent juice side effects have been reported in those taking monoamine oxidase inhibitors (MAOIs), as the juice can negatively interact with this medication.

Epilepsy

Blackcurrant juice side effects have been reported in those with epilepsy, as the juice may interact poorly with medications prescribed for this disorder.

Pregnant or breastfeeding women, as well as children and the elderly, should monitor their intake as immunity and bodily functions may be compromised or underdeveloped in these demographic groups.