Top critical review
1.0 out of 5 starsI had a weird excruciating reaction to magnesium l-threonate
Reviewed in the United States on December 6, 2018
Magnesium l-threonate does not agree with me! Other types of magnesium-no problem, but this caused a reaction so severe that I will NEVER swallow another Mg l-threonate capsule again. I bought this for sleep; my brother and his wife use it, and they like it very much. But for me, it caused some kind of deep cramping in my thighs so excruciating I can find no words to describe it. It did not seem like a muscle cramp, but more like a vascular cramp, as if something had a hold of your femoral artery and was cruelly twisting it. I do know pain. I had to undergo abdominal surgery while conscious without anesthesia on one painful occasion, and there have been several other unfortunate episodes, so believe me when I say this was painful. Painful enough that the thought of a recurrence of this pain actually strikes terror in my heart! I I know this sounds very melodramatic, but it is the truth. I do not believe my reaction was due to an interaction of this supplement, as I was not taking anything else at the time. Also, I am generally healthy, ultrasound has shown no evidence of any vascular plaque or ischemia. Also, it wasn't just this brand, as I tried several brands. The cramping occurred on 2 occasions, both times when I took this supplement, within a couple hours of taking it. I also enjoyed a vascular headache with it., both times when I took it. Not fun, but nothing like the cramping in the legs. Outside of these 2 episodes, I am not troubled with cramping.
Anyway, I don't think there is anything wrong with this brand, I know most people find it very useful. I have never had a reaction like this to any supplement. I hope nobody else ever has a reaction like I did.