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Chronic fatigue syndrome (CFS) is a weakening and complex disorder involving intense fatigue that does not go away with rest. This fatigue may become worse with physical or mental activity. People with CFS often function at a lower activity level than before they got sick. CFS can last for years. The cause has not been identified, and no tests can detect CFS. The condition is diagnosed only if other medical conditions are ruled out.
CFS is a complex illness possibly having many causes. There is no evidence that a single treatment works. Such treatments include herbs, minerals and vitamins. Talk to your doctor before taking any supplement.
Symptoms
Symptoms may include:
- Aching muscles and joints
- Muscle spasm
- Anxiety
- Depression
- Trouble concentrating
- Headaches
- Irritability
- Mood swings
- Intestinal problems
- Respiratory infections
- Extreme and constant fatigue
- Unrefreshing sleep (waking up in the morning feeling tired)
- Tiredness, pain and flu-like symptoms after exercise
- Sore throat
- Tender cervical (neck) or auxiliary lymph nodes (They do not have to be swollen - just tender.)
- Impaired memory or concentration
Be aware that herbs and supplements are not strictly regulated by the Food and Drug Administration. Do not assume if a product is considered "natural" that it is harmless. Many substances do not have sound science behind them to prove their safety or how well they work. Manufacturers may not be giving you what you think you are getting, or the way the substance is processed may be unhealthy or unsafe.
With many of these products, doctors do not know enough about them. Herbs and supplements may interact with prescription and over-the-counter medications or can worsen your health conditions. Consider that some supplements, such as vitamin A, may be unsafe when taken in mega doses.
It is strongly advised that you talk to your doctor before taking any supplement or herb. If you are taking an herb or supplement and notice any unusual symptoms, stop taking the substance immediately and talk to your doctor.
| Supplement |
Claim |
Possible interactions, side effects and dangers |
What the experts say |
| DHEA |
Treats chronic fatigue syndrome. |
DHEA may promote certain cancers, such as prostate cancer. It may also cause facial hair in women, male pattern baldness, deepening voice and acne.
It may increase cholesterol levels and affect the thyroid. It may interact with drugs such as tamoxifen (a breast cancer drug), insulin and Halcion (a sleeping pill).
Few side effects have been reported when using DHEA at recommended doses. |
The evidence is unclear about how well DHEA supplements work. Better research is needed. |
This article was reviewed and updated June 2007.
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