According to the Herbal Supplements Guide, melatonin is a hormone produced naturally by your pineal gland in response to light that plays a role in your body's metabolic rhythms. One of its major functions is to readjust the body's biological clock and is sometimes used to treat insomnia and jet lag. Drugs.com explains that melatonin has been used to boost the immune system, prevent cancer, protect cells from free-radical damage and even to extend life. Although there is no scientific evidence at this time, some people believe it has anti-aging properties and others believe it benefits the immune system. As with all herbs, supplements and medicines, there are some risks involved in taking them.
Side Effects
Melatonin side effects that have been reported include headaches, nightmares and vivid dreams, nausea, abdominal cramps, dizziness, depression and irritability. Problems with the reproductive system as well as a lowered sex drive in both sexes have been reported. People suffering from depression might experience worsening symptoms. The Mayo Clinic also reports that melatonin can produce daytime sleepiness, confusion and sleepwalking. Melatonin can interfere with the metabolic system and affect your hunger and rate of your digestion.
Precautions
The Herbal Supplements Guide warns that people at higher risk of developing melatonin side effects are people with liver disease, high blood pressure and seizure disorders. Consuming melatonin for more than two months may be harmful, and the ideal dose isn't certain. Speak to your health care provider before taking melatonin, especially if you have any other health conditions.
Drugs.com says that melatonin has not been evaluated by the FDA . Possible risks and advantages of melatonin may not be known. Additionally, take synthetic melatonin because melatonin taken from animal pineal tissue may carry the risk of contamination.
Interactions
The Mayo Clinic states that melatonin may interact with various medications, including blood-thinning medications, (anticoagulants), immunosuppressants, diabetes drugs and some birth control pills.
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