Moringa oleifera leaves, seeds, bark, roots, sap, and flowers are widely used in traditional medicine while the leaves and immature seed pods are used as food products in human nutrition. Leaf extracts exhibit the greatest antioxidant activity, and various safety studies in animals involving aqueous leaf extracts indicate a high degree of safety. It is also traditionally used as an immune booster and a galactagogue.
Source: Hartman and Stohs. 2015. Review of the Safety and Efficacy of Moringa oleifera. Phytotherapy Research