I have chronic fatigue associated with low adrenal output, and very early on I found that L-Carnitine, Magnesium, CoQ10, and D-Ribose work excellently to produce energy at the cellular level. I have used this foursome for years; however, recently my pulse rate went up, and I was astonished to find it was the L-carnitine in association with a change in the supplements I was taking for low thyroid. I am told 5 to 9 percent of people may experience an increase in pulse rate when taking L-Carnitine either at the beginning of taking or later. This also happened to me after three years of taking L-Tyrosine (also an amazing energy booster for those with fatigue).
Posted by iHerb Customer on Nov 07, 2012 | Verified Purchase
I didn't do enough research before buying this product. My thyroid gland whas been removed, so I'm taking thyroid hormone replacement meds, and according to some sources, which I found only afterwards (there wasn't any mention of it in the product info), L-carnitine interferes with thyroid hormones. If you have hyperthyroidism, you can take it, but if hypothyroidism or hormone replacement for other reasons, don't take it. Also, the pills are pretty big and thus hard to swallow without food. It's difficult to rate since I only took it a couple of times before realising I shouldn't take it.
Posted by iHerb Customer on Aug 08, 2015 | Verified Purchase
후기에 하루에4개까지 먹어도 된다는 글은 뭐죠?똑같은 제품 500mg 상품은 그러던데 이건 855mg..근데 이거 한알,500mg 4알 섭취그람에서 볼때 855mg 은 왜 하루 한알로 되어있는지 설명좀..
Posted by iHerb Customer on Feb 14, 2009 | Verified Purchase
After trying Jarrow Formulas brand of Carnitine, I wanted to try another brand, so I tried this one and I really couldn't tell much of a difference.
Posted by iHerb Customer on Mar 23, 2010 | Verified Purchase
still waiting for benefits
Posted by iHerb Customer on Dec 10, 2008 | Verified Purchase
haven't noticed much of a difference yet
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