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Acetyl-L-carnitine

SupplementCommon1 review
+3
Average score out of 5
Based on 1 experience(s)

An amino acid derivative that plays a role in cellular energy production. It is being studied for its potential to improve chronic fatigue and cognitive function ('brain fog') in Long COVID patients.

Information
Subcategory
amino acid derivative
Evidence level
3/5
Evidence type
observational studies and small clinical trials
Score distribution
+5
0 (0%)
+3
1 (100%)
+1
0 (0%)
0
0 (0%)
Negative
0 (0%)
Practical information
Time to effect
3 weeks
Latest reviews
M
Anonymous review+3
18-25 y.o. · 4/21/2026
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