Special Functions. Many health benefits of moringa leaf have been proposed based on laboratory studies and animal studies, but far fewer have been validated with human clinical trials.

Supplements of the whole leaf, as well as various leaf extract that contain concentrated bioactive compounds, have been studied for blood glucose management. The flavonoids and phenolic acids are the likely bioactive compounds that support blood glucose management. Several human clinical studies report slight improvements in post-prandial blood glucose and insulin levels in individuals with type 2 diabetes; however, more research is necessary to make a recommendation for use of moringa as a blood glucose management tool.

Other possible benefits such as asthma management, blood lipid reduction, obesity management, and menopause symptoms management have been studied. However, there is not enough scientific evidence to support these benefits.

Recommended Intakes & Toxicity. There is no recommended intake of moringa leaf or moringa leaf powder, although some supplement makers may suggest consuming more than 10 grams (g) per day. A few studies have assessed moringa leaf safety, demonstrating that up to 30 g of moringa leaf per day can be consumed safety for a duration of up to six months. However, it interacts with liver enzymes that are responsible for drug metabolism, so this intake may not be suitable for all individuals. There are likely drug-herb interactions, but they have not been fully identified.

Other moringa preparations derived from root and bark contain a compound similar to ephedrine which may cause dangerous side effects. However, safety thresholds for moringa root and bark products have not been determined.

Sources. Ground moringa leaf is primarily found in supplement forms such as powders, capsules, and tablets. Moringa leaf may also be consumed as a dried tea. Moringa root supplements are less common and may be found in capsule or tablet form. 

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