Moringa leaves are rich in antioxidants including vitamin C, beta-carotene, quercetin, and chlorogenic acid. The latter, chlorogenic acid, has been shown to slow cells’ absorption of sugar and animal studies have found it to lower blood sugar levels**. It is also an important source of Iron that contributes to reduce fatigue and regenerate red blood cells to prevent anemia. Moringa supplementation is traditionally used to energize and strengthen naturally the immune system.
Moringa oleifera leaves, seeds, bark, roots, sap, and flowers have been widely used in traditional medicine, and the leaves and immature seed pods are currently used as food products in human nutrition. A proper analysis would look at its macronutrient and nutritional profile in addition to isolated bioactives.
Most parts of this plant are said to hold some medicinal properties even including the seeds,[1-2] fruit pods, and flowers although the leaves are thought to be the main medicinal component.
The leaves are also known to have the highest antioxidant potential of all plant parts. Leaf extracts exhibit the greatest antioxidant activity, and various safety studies in animals involving aqueous leaf extracts indicate a high degree of safety 
Most traditional medicinal usage of this plant is also related to it being an anti-inflammatory agent and tends again to be focused on the leaf extracts of the plant.
No adverse effects were reported in association with human studies. Five human studies using powdered whole leaf preparations of M.?oleifera have been published, which have demonstrated anti-hyperglycemic (antidiabetic) and anti-dyslipidemic activities. These activities have been confirmed using extracts as well as leaf powders in animal studies. A rapidly growing number of published studies have shown that aqueous, hydroalcohol, or alcohol extracts of M.?oleifera leaves possess a wide range of additional biological activities including antioxidant, tissue protective (liver, kidneys, heart, testes, and lungs), analgesic, antiulcer (its isothiocyanates, which have anti-bacterial properties may help to rid your body of H. pylori, a bacteria implicated in gastritis, ulcers, and gastric cancer), antihypertensive, radioprotective, and immunomodulatory actions. A wide variety of polyphenols and phenolic acids as well as flavonoids, glucosinolates, and possibly alkaloids is believed to be responsible for the observed effects. Standardization of products is an issue. However, the results of published studies to date involving M.?oleifera are very promising. Additional human studies using standardized extracts are highly desirable  HealthAid Organic Moringa Leaf capsules are the ultimate, natural and organic energy and health supplement. It contains naturally multiple amounts of nutrients at a level the body is able to digest and utilize it. HealthAid Organic Moringa Leaf capsules have the added benefits of Chromium to help maintain normal blood glucose levels and control appetite.