l carnitine raise blood pressure Comparison of short-term and long-term effects of peroral L-carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications L-carnitine and CVD - Today's
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[DOI] [PMC free article] [PubMed] [Google Scholar] Liu T., Han X., Sun X., Zhang W., Gao K., Min R., Tian Y., Yin C

A meta-analysis performed by (2017) [58] brought together 18 studies with a total of 5483 subjects (healthy and diabetic)

Long, W

doi: 10.1371/journal.pone.0012244 57

In limited data it's generally reported as well-tolerated, but human safety data is still limited and long-term effects aren't fully characterized