A complete safety, timing, and dosage guide for combining Copper with Alpha-Lipoic Acid (ALA) — including how the two supplements interact, the best time of day to take each, and which populations should be careful.
Yes, you can safely take copper and alpha-lipoic acid together. There is no clinically significant interaction, and you don't need to space them apart.
Taking copper and alpha-lipoic acid together is safe and does not cause a significant interaction. Copper and ALA work through different absorption pathways, so combining them is not a problem for adults on a standard supplement routine.
Copper is absorbed primarily in the stomach and duodenum via the Ctr1 transporter, while alpha-lipoic acid is absorbed passively in the gastrointestinal tract and does not rely on this transporter. ALA has a theoretical ability to chelate divalent metals, but studies show that clinically relevant copper depletion is not seen at typical supplement doses. Instead, ALA mainly acts as an antioxidant and supports mitochondrial function, while copper is a cofactor for enzymes like ceruloplasmin and superoxide dismutase. Since neither supplement significantly upregulates or depletes the other's absorption pathway, no meaningful competition exists.
If you are taking both, a convenient routine is to take 2 mg copper with breakfast and 300-600 mg of R-ALA at the same meal or earlier in the day. No spacing is required because they don't compete for absorption. Avoid splitting them into separate empty-stomach doses, as copper is better absorbed with food and ALA can be slightly irritating on an empty stomach. If you randomly miss a dose, take it when you remember unless your next dose is less than 4 hours away, and then skip the missed dose.
Copper glycinate and copper sulfate are better absorbed than cupric oxide, but this affects overall copper status, not the interaction with ALA. For alpha-lipoic acid, R-ALA and Na-RALA forms are more bioavailable than standard S-ALA, but again this does not alter copper metabolism. Choose high-quality forms for each nutrient; the combination itself remains safe across all common forms.
This pair is not a common standalone stack, but it may appear together in comprehensive multivitamin formulas and antioxidant blends that include zinc, vitamin C, and CoQ10. You are more likely to encounter copper in a mineral complex and ALA within a blood-sugar-support or antioxidant supplement.
Yes, you can take them together. There is no competition for absorption, and many multi-nutrient formulas include both. I typically suggest taking them with a meal to keep things simple.
It is safe to combine them daily at standard supplement doses. I recommend staying within the adult copper RDA of about 900 mcg to 2 mg, and using no more than 600 mg of ALA per day unless your doctor supervises you.
You don't need to wait at all. They don't interfere with each other, so you can take them in the same meal or right after one another.
No, they do not compete. Copper uses a specific intestinal transporter, while ALA is absorbed through a different passive process, so there is no meaningful competition.
You should avoid this combination if you have Wilson's disease or another copper-storage disorder, unless your doctor tells you to take copper. I also tell pregnant women not to add extra copper beyond prenatal vitamins, and people with diabetes should add ALA under medical supervision.
I recommend taking both with food. Copper absorbs better in the presence of protein, and ALA can feel less nauseating when taken with a meal. If ALA on an empty stomach causes stomach upset, you can take it 30 minutes after eating.
Reviewed by Caroline M. on June 2, 2026 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.
The matrix has 86 supplements and 7310 pairwise interactions. Click any cell to see the full breakdown.