Astragalus Supplements

Astragalus, or milk vetch, is used in traditional Chinese medicine. The root is taken orally to try and improve immune function. Astragalus has been scientifically tested and has some potentially useful effects.

Proven Effects

• Astragalus has a proven effect on immune function. The root improves the immune system's killer cells' function. This is why herbalists promote Astragalus for the prevention of allergic and infectious mold.

Safety

• According to the American Cancer Society, Astragalus is generally thought to be safe. Side effects include loose stools, bloating and dehydration. People who are taking other drugs, such as the immunosuppressants cyclosporine and tacrolimus, should not take Astragalus. Consult your doctor prior to taking any supplements.

Regulation

• Astragalus supplements are regarded as herbal supplements and, thus, do not fall under the remit of the Food and Drug Administration (FDA). Therefore, they are not subject to the FDA's strict rules on safety and efficacy that apply to medicines.

Products and Sales

• Astragalus products include tablets, powders, liquids, capsules and teas. They can be ordered without prescription from online health care stores such as Amazon and retail locations such as Nature's Way. Brand names include Nature's Way, Deep Defense, Weil and Vitamin Shoppe.