Posted by iHerb Customer on Sep 22, 2011 | Verified Purchase
I tried this supplement because I had a lack of energy, hair loss and severe muscle spasms in my legs and general aches and pains. My thyroid and other tests are 'normal' so I was looking for a natural way to feel better and decided to try this. I took the product for just over 3 weeks, then stopped due to side some unpleasant effects. It did help with the initial severe leg cramps I'd get at night, however, I alternated between feeling excess energy and insomnia and feeling so sleepy I needed a nap. I did sleep better and felt more energy during the day, but I was also developing some strange symptoms, such as hand tremors and strange non-painful muscle spasms in my calves (new symptoms). I was also agitated for several days and very snappy and emotional, again - not typical for me to react that way. These symptoms stopped within 2 days of going off the product...so far, the painful leg cramping has not returned...hoping it won't return. I alternated between taking 1-2 pills a day...I never took any past lunch time, as it would keep me awake if I took it later in the day. My husband also tried this and went off after two weeks, he also initially felt great, he had energy and was feeling better, but then started to become extremely agitated and almost angry. He also had insomnia followed by better sleep after the first week. it did help his concentration, but the mood swings and personality change were not worth the benefits. So, while we both had some positive effects, the bad side effects were too bothersome to stay on this product. I suppose everyone reacts differently to supplements, but this was not 'side effect free' for me or my husband. Take with caution.