VCVITAMINS/CHART

The Bottom Line

Yes, you can take valerian root with copper safely — no known interaction.

VERDICT

Copper and Valerian Root together are considered safe, with no known biochemical interaction. Valerian's calming effects are unrelated to copper metabolism, so combining them shouldn't affect your copper status. As with any supplement, stick to recommended doses.

Safe to combine Limited evidence
01 / MECHANISM

How They Interact

Copper is absorbed primarily in the stomach and duodenum through the Ctr1 transporter and is regulated by proteins like ATP7A and ATP7B. Valerian root's active compounds, such as valerenic acid, work on GABA-A receptors in the brain to promote relaxation — they have no known affinity for copper transporters or metallothionein. Valerian is metabolized mainly by liver enzymes like CYP3A4 and CYP2C19, while copper is not significantly processed by the cytochrome P450 system. No pharmacodynamic or pharmacokinetic pathway connects these two nutrients, so they do not interfere with each other's absorption or function.

02 / BEST PRACTICES

How To Take Them

You can take copper and valerian root at the same time, but spacing them may be more practical — take copper in the morning with breakfast and valerian in the evening before bed. Copper is best absorbed with food, especially when paired with a source of protein or vitamin C, while valerian can be taken with or without food. If you miss a dose of either, just resume your normal schedule the next day; there's no need to compensate. Keep your valerian use short-term (typically up to 4–6 weeks) to avoid tolerance, and always follow the dose on the label or your healthcare provider's advice.

03 / FORM MATTERS

Form & Quality Differences

The form of copper matters for overall absorption — cupric oxide is poorly absorbed compared to copper glycinate or copper sulfate — but this does not change the interaction with valerian root. Valerian root products vary in potency, often standardized to 0.8% valerenic acid, but this variation doesn't affect the absence of interaction. Choose reputable brands that provide consistent dosing for both supplements.

05

Practical Tips

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Frequently Asked Questions

Who Should Be Careful While no interaction exists, certain populations should be cautious in general. Valerian root is not recommended during pregnancy or breastfeeding due to lack of safety data, and people with liver disease should avoid it because of its hepatic metabolism. Copper supplements should be avoided in Wilson's disease or hereditary copper overload conditions. If you are on blood thinners or hormone medications, check with your healthcare provider before adding valerian, as it may increase sedation and affect drug metabolism.
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Sources & Further Reading

  1. NIH ODS NIH Office of Dietary Supplements — Copper Fact Sheet
  2. NIH ODS NIH Office of Dietary Supplements — Valerian Root Fact Sheet
  3. Examine.com Examine.com — Copper interaction page
  4. Examine.com Examine.com — Valerian Root interaction page

Reviewed by Caroline M. on April 11, 2026 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.

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