Last update
4/11/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
USERS' SCORE
Moderately Good
Based on 2 Reviews
7.4
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
L-Carnitine (Carnipure®)(from 1,493 mg L-Carnitine Tartrate)
1 g (1,000 mg)
**
Top Medical Research Studies
7
We explored the effects of l-carnitine on insomnia in the context of Parkinson's disease. The study analyzed whether higher levels of l-carnitine could help alleviate sleep disturbances experienced by individuals with this condition.
Interestingly, our findings indicated a suggestive inverse causal effect of l-carnitine on insomnia. Specifically, we observed that increased levels of l-carnitine were associated with a lower likelihood of insomnia, which was demonstrated with a statistically significant odds ratio of 0.817.
While this is promising, it's important to note that these results should be viewed with caution. The link between l-carnitine and insomnia is still being investigated, and further research is needed to confirm these findings and to understand the mechanisms involved. Therefore, we should remain open to a deeper exploration of how l-carnitine might play a role in sleep quality, especially for those suffering from Parkinson's disease.
Interestingly, our findings indicated a suggestive inverse causal effect of l-carnitine on insomnia. Specifically, we observed that increased levels of l-carnitine were associated with a lower likelihood of insomnia, which was demonstrated with a statistically significant odds ratio of 0.817.
While this is promising, it's important to note that these results should be viewed with caution. The link between l-carnitine and insomnia is still being investigated, and further research is needed to confirm these findings and to understand the mechanisms involved. Therefore, we should remain open to a deeper exploration of how l-carnitine might play a role in sleep quality, especially for those suffering from Parkinson's disease.
Read More
Most Useful Reviews
0
Hazardous to health
7 people found this helpful
Total insomnia. Anyone slightly predisposed to insomnia should avoid this. After a week of taking it, I was unable to sleep at all, only managing to doze off at 5-6 in the morning. I spent three weeks without any sleep, unsure of what to do, and even 10 mg of melatonin didn’t help until I realised I needed to stop taking carnitine. I cancelled it, and immediately, everything returned to normal. I also experienced stomach issues during use, so I believe this drug is hazardous to health. There was no touted effect!
Read More
6
Weight loss aid
An excellent dietary supplement that aids in weight loss and boosts endurance. I genuinely like L-carnitine; the results are quite noticeable with regular use. There is one downside, which is insomnia, but if you listen to your body and time your intake properly, you’ll be fine! Consulting a specialist is recommended, though I prefer to trust my own instincts, but I wouldn't advise others to do the same!
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
- All Researches
7
We explored the effects of l-carnitine on insomnia in the context of Parkinson's disease. The study analyzed whether higher levels of l-carnitine could help alleviate sleep disturbances experienced by individuals with this condition.
Interestingly, our findings indicated a suggestive inverse causal effect of l-carnitine on insomnia. Specifically, we observed that increased levels of l-carnitine were associated with a lower likelihood of insomnia, which was demonstrated with a statistically significant odds ratio of 0.817.
While this is promising, it's important to note that these results should be viewed with caution. The link between l-carnitine and insomnia is still being investigated, and further research is needed to confirm these findings and to understand the mechanisms involved. Therefore, we should remain open to a deeper exploration of how l-carnitine might play a role in sleep quality, especially for those suffering from Parkinson's disease.
Interestingly, our findings indicated a suggestive inverse causal effect of l-carnitine on insomnia. Specifically, we observed that increased levels of l-carnitine were associated with a lower likelihood of insomnia, which was demonstrated with a statistically significant odds ratio of 0.817.
While this is promising, it's important to note that these results should be viewed with caution. The link between l-carnitine and insomnia is still being investigated, and further research is needed to confirm these findings and to understand the mechanisms involved. Therefore, we should remain open to a deeper exploration of how l-carnitine might play a role in sleep quality, especially for those suffering from Parkinson's disease.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 2 Reviews
7.4
- All Reviews
- Positive Reviews
- Negative Reviews
0
Hazardous to health
7 people found this helpful
Total insomnia. Anyone slightly predisposed to insomnia should avoid this. After a week of taking it, I was unable to sleep at all, only managing to doze off at 5-6 in the morning. I spent three weeks without any sleep, unsure of what to do, and even 10 mg of melatonin didn’t help until I realised I needed to stop taking carnitine. I cancelled it, and immediately, everything returned to normal. I also experienced stomach issues during use, so I believe this drug is hazardous to health. There was no touted effect!
Read More
6
Weight loss aid
An excellent dietary supplement that aids in weight loss and boosts endurance. I genuinely like L-carnitine; the results are quite noticeable with regular use. There is one downside, which is insomnia, but if you listen to your body and time your intake properly, you’ll be fine! Consulting a specialist is recommended, though I prefer to trust my own instincts, but I wouldn't advise others to do the same!
Read More
Frequently Asked Questions
No FAQs are available for this product and symptom.
References
- Zhou H, Luo Y, Zhang W, Xie F, Deng C, et al. Causal effect of gut-microbiota-derived metabolite trimethylamine N-oxide on Parkinson's disease: A Mendelian randomization study. Eur J Neurol. 2023;30:3451. 10.1111/ene.15702
