NutriStack
Alpha-Lipoic Acid and L-Carnitine, a synergy.
L-Carnitine and alpha-lipoic acid are a classic mitochondrial-support pairing. Animal aging studies (notably the Ames and Hagen group work using the acetyl form with lipoic acid) and human trials in coronary artery disease have shown the combination improves mitochondrial enzyme activity, endothelial function, and markers of oxidative stress beyond what either supplies individually. The interaction is favorable and additive rather than risky.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Alpha-Lipoic Acid and L-Carnitine
- Pair type
- Synergy
- Evidence (highest tier)
- Moderate
- Source citations
- 1 source
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Supplement
- Last verified
- May 30, 2026
Synergy · Moderate evidence
Synergy
What is happening. L-Carnitine and alpha-lipoic acid are a classic mitochondrial-support pairing. Animal aging studies (notably the Ames and Hagen group work using the acetyl form with lipoic acid) and human trials in coronary artery disease have shown the combination improves mitochondrial enzyme activity, endothelial function, and markers of oxidative stress beyond what either supplies individually. The interaction is favorable and additive rather than risky.
Mechanism. Both compounds act on the same mitochondrial energy-production machinery but at complementary points. L-Carnitine shuttles long-chain fatty acids across the inner mitochondrial membrane to fuel beta-oxidation and ATP generation, while alpha-lipoic acid serves as a cofactor for pyruvate and alpha-ketoglutarate dehydrogenase and acts as a potent mitochondrial antioxidant that recycles other antioxidants and scavenges reactive oxygen species. Pairing fatty-acid delivery (carnitine) with oxidative-stress quenching plus enhanced TCA-cycle flux (lipoic acid) restores mitochondrial enzyme activity and membrane integrity more than either alone.
Recommendation. These can be taken together intentionally for mitochondrial and metabolic support. A common pairing is L-Carnitine 1,000 to 2,000 mg/day with alpha-lipoic acid 300 to 600 mg/day, ideally split with meals. Take alpha-lipoic acid roughly 30 minutes before or 2 hours after food if maximizing its absorption matters, and separate it from any mineral supplements (it can chelate some metals). No safety conflict, but monitor blood sugar if you are diabetic since alpha-lipoic acid can mildly lower glucose.
Minimum separation. None required; can be co-administered
Stack Score
How this pair moves the number.
Effect on the composite score
If both Alpha-Lipoic Acid and L-Carnitine are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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