Rumex acetosa

A common perennial herb growing up to 60cm (22 in) in height. The edible, arrow-shaped leaves are crimson turning to purple in colour and give a bitter taste in raw salads. Still grows wild in Northern Europe as well being cultivated as a salad vegetable.

Family: Polygonaceae

Which probiotic is it in?: Sorrel is a key ingredient in Bio-Live Gold and Bio-Live Dark.

Habit and cultivation: Native to UK and most of Europe and grows in most soils under a variety of conditions. Found more abundantly in fields where the soil content is high in iron.

Actions (known for): Bitter digestive tonic, anti-inflammatory, refrigerant, diuretic and anti-bacterial.


Derived from the Germanic word ‘sur’, translating as sour. Also called ‘Cuckoo’s-meate’, from a historical belief that the bird cleared its voice box by indulging in sorrel. Mentioned in Jamaican literature as a sour herb in the 1700s. One of the ingredients of Essiac tea.

Parts used:

Leaves both dried and fresh.

Constituents (bio available chemicals):

Oxalate acid, tartaric and tannic acids.

Nutritional constituents:

Vitamins: A and C. Minerals: potassium.


Fevers, gargle for sore throat, constipation, skin tumours and internal ulcers. Topically: wounds from chicken pox, boils and bruises.


An extract of leaves (25g to half litre of boiling water) used as a cooling drink for fever. 1tsp infused into hot water and left for 15-20mins, drink 3 x daily.

British Herbal Pharmacopoeia

Cautions for therapeutic doses

Gout, kidney stones and arthritis.

Back to Microbzpedia

Revive or Sustain your gut health

bottle of microbz revive living liquid probiotics to support digestion with l-glutamine and slippery elm, with graphic illustration


Begin your gut health journey

Bottle of microbz sustain with an illustrative strip


Maintain good gut health, month by month

A product image of the microbz 90 day gut reboot with one bottle of microbz revive and two bottles of microbz sustain as well as a notebook

90 day gut reboot

All you need in one box, with email tips