Blackcurrants have a high vitamin C content – four times as much as oranges of an equivalent weight. They are rich in antioxidants and flavonoids and help to relieve inflammation as well as urinary tract infections. It is also a good source of potassium.

Blackcurrants in all forms work as antioxidants, as anti-inflammatories and theanthocyanin flavonoids counter the bacteria that cause food poisoning and urinary tract infections.

The black currant shrub is native to Europe and parts of Asia and is particularly popular in Eastern Europe and Russia. Traditional herbalists uphold that black currant has diuretic (increases urine flow), diaphoretic (promotes sweating), and antipyretic (fever reducer) properties. In Europe, it has been used topically (applied to the skin) to treat skin disorders, such as atopic dermatitis, and as part of gargles to treat sore throats. Black currant juice has been boiled down into a sugary extract, called Rob, to treat sore throat inflammation, colds, the flu, and febrile (fever) illness. A mixture made from black currant bark has been used to treat calculus (hardened plaque), edema (swelling), and hemorrhoids.