About 65 to 80% of the world's population use traditional medicine for their primary health WHO
according to the WHO report. However, the use of herbal medicines has come under scrutiny due
to their perceived long-term toxicity among other considerations, in another word there is usually a
small window between nutrition and toxicity. The main reasons for the presence of toxic elements
in medicinal plants are their individual properties, concentrations of metals in soil, air, and water,
climatic factors; plant species and other environmental factors
سمير بقعة بن ابراهيم | Samir begaa | 3361