Derived from the Lepidium meyenii walp plant, maca is an herbal supplement that has gained recent popularity as a way to enhance sexual libido. Maca, which is related to turnips and radishes, may also serve as a stress-reducer and may improve sperm production in infertile men. Further research is necessary, however, to support these potential health benefits of maca. Talk with your doctor before using this supplement, because maca is not appropriate for everyone.
Thyroid Disorders
If you have a disorder in which your thyroid gland produces too much or too little thyroid hormone, don't take maca without first talking with your physician. Maca contains a class of compounds called glucosinolates, which may cause swelling of your thyroid gland and reduced production of thyroid hormone -- especially if you also maintain a low-iodine diet. These thyroid problems, collectively referred to as goiter, may cause coughing, hoarseness, trouble swallowing or difficulty breathing. Contact your doctor immediately if any of these symptoms arise while you are taking maca, to ensure you receive appropriate medical care.
Lactation or Pregnancy
The safety and effectiveness of maca have not been approved by the U.S. Food and Drug Administration. Because of this lack of data, women who are pregnant or lactating should not use maca.
Overall Safety
Though additional research is needed, maca is generally well tolerated when used as directed. If you develop any unusual health problems while taking maca, however, consult your physician.
Recommended Dosage
The recommended dose of maca is 1,500 to 3,000 mg daily, divided into three 500 to 1,000 mg doses. Maca is available as a dried powder, and is usually administered as an oral capsule. The amount of maca you should take, however, may vary depending on your health status, age and weight. Talk with your doctor before taking maca.
