ALS Untangled reviewed L-carnitine supplements for ALS
Original source
L-Carnitine (opens in a new tab)ALS Untangled found theoretical reasons and some preclinical evidence supporting carnitines, including L-carnitine and acetyl-L-carnitine. It also identified one clinical trial suggesting that acetyl-L-carnitine might slow disease progression. The group said more clinical trials are needed and did not endorse any of these supplements as a definite treatment for slowing ALS progression.
Why this matters
People with ALS may view acetyl-L-carnitine as a possible supplement to discuss with their clinician, but this review does not establish that it slows the disease. ALS Untangled described the supplements as generally well tolerated, safe and inexpensive, while noting that the evidence remains limited.
Limitations and context
This is an independent expert review, not a new clinical trial. The review refers to preclinical evidence and only one clinical trial, and says further data are needed. Its statement that acetyl-L-carnitine may be theoretically promising should not be taken as proof of treatment benefit.