Evidence brief · Supplement
Acetyl-L-Carnitine (ALCAR) for Cognition (MCI/aging)
Evidence grade C — Modest
- Overall grade
- Grade C
- Last revised
- 1
- graded outcome
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
1 at grade C — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Cognition (MCI/aging)Evidence grade C
Modest
Smallmixed
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Cognition (MCI/aging) (grade C).
The evidence in words
The verdict
For cognition (mci/aging), Acetyl-L-Carnitine (ALCAR) earns evidence grade C (small effect, mixed consistency) — the evidence is limited or mixed. Modest
How it might work
It shuttles fatty acids into mitochondria for energy, donates acetyl groups for acetylcholine synthesis, and has neuroprotective/antioxidant actions.
How to use it
Safety & cautions
Generally safe; can cause GI upset, and, like carnitine, may raise TMAO. Mildly stimulating for some — take earlier in the day.
Bottom line
A legitimate option for diabetic neuropathy and a reasonable adjunct for mood/aging cognition; less compelling as a general nootropic for the young and healthy.
Goes with
- Acetyl-L-Carnitine (ALCAR)Read the full Acetyl-L-Carnitine (ALCAR) monographEvidence grade B
Related reading
Entries that share this one's tags or conditions.
- Acetyl-L-Carnitine (ALCAR) for Depression (older adults)Evidence grade B — AdjunctEvidence grade B
- Acetyl-L-Carnitine (ALCAR) for Diabetic neuropathy painEvidence grade B — Best useEvidence grade B
- Acetyl-L-Carnitine (ALCAR): side effects, safety & interactionsGenerally safe; can cause GI upset, and, like carnitine, may raise TMAO. Mildly stimulating for some — take earlier in tEvidence grade B
- Idebenone for Mitochondrial disease (specific)Evidence grade C — Niche, medicalEvidence grade C
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.