In all tropical countries, the mango tree from India has a reputation for anti-diarrhea, mainly leaves and bark, and recently a specialty containing Mango leaf extract has beenmarketed in Zaire.

The wolfberry grows in Tibet and China (center and north of the country), which grown from seed in autumn. The root is dug in any time of 1’année. Most of the time, or rather at the harvest spring. The fruits are picked at the end of summer or early autumn.