VCVITAMINS/CHART

The Bottom Line

Yes, you can safely combine maca root and PQQ because they work through different pathways and have no known interactions.

VERDICT

Maca root and PQQ together are a safe, neutral combination. They act through distinct biological mechanisms, so you can take them without worrying about competition or reduced effectiveness. No significant adverse interactions have been reported in available research.

Safe to combine Limited evidence
01 / MECHANISM

How They Interact

Maca root is an adaptogenic plant food rich in polysaccharides, glucosinolates, and unique macamides that influence hormone signaling and energy balance, primarily through the hypothalamus-pituitary axis and neurotransmitter modulation. PQQ (pyrroloquinoline quinone) is a redox-active quinone that supports mitochondrial biogenesis and cellular energy production by activating signaling pathways like CREB and PGC-1α, independent of hormonal pathways. These two compounds do not share receptor targets, enzyme systems, or transport proteins, so there is no competitive interaction at the cellular level. Maca's water-soluble compounds and PQQ's uptake via organic anion transporters are absorbed independently in the gut, meaning neither affects the other's bioavailability. Additionally, neither induces or inhibits cytochrome P450 enzymes at typical supplemental doses, lowering the risk of metabolic interference.

02 / BEST PRACTICES

How To Take Them

Take both supplements once daily with a meal, ideally breakfast, to support consistent absorption and avoid any mild stomach upset from maca powder. If you take other medications, separate them by at least 2 hours from PQQ and maca to rule out any unforeseen carrier or fiber interactions. There's no need to space the two apart—combining them in one meal is safe and convenient. If you miss a dose, just take it with your next meal; don't double up later in the day. To maximize PQQ's benefit, pair it with a diet rich in resveratrol or grapes, and for maca, include a source of vitamin C to support its antioxidant activity.

03 / FORM MATTERS

Form & Quality Differences

Maca is available as raw powder, gelatinized powder, or extracts; gelatinized maca is easier on the stomach but has no known interaction with PQQ. PQQ is commonly sold as the disodium salt (PQQ disodium) or free acid—both forms have similar bioavailability and no reported differences in how they interact with maca. Stick with standardized maca extracts (typically 4:1 or 10:1) and PQQ disodium for consistent dosing, but the form choice doesn't change the safety profile of the combination.

04 / COMMON STACKS

Where This Pair Shows Up

This pairing is uncommon in commercial formulations, but both ingredients appear separately in hormone-balancing and mitochondrial-support stacks, often alongside CoQ10 for energy and ashwagandha for stress.

Multivitamins Prenatals Performance Longevity
05

Practical Tips

06

Frequently Asked Questions

Who Should Be Careful If you are pregnant, breastfeeding, or trying to conceive, avoid combining these supplements without medical supervision, as maca's hormonal effects and PQQ's lack of pregnancy safety data are not well established. People with hormone-sensitive conditions (e.g., breast or prostate cancer) should avoid maca, while those on insulin or blood-sugar-lowering medications should monitor glucose levels as maca may have mild hypoglycemic effects. PQQ is generally well tolerated, but limited human data means caution is warranted for children and older adults with kidney or liver disease.
08

Sources & Further Reading

  1. NIH ODS NIH Office of Dietary Supplements — Maca Root Fact Sheet
  2. Examine.com Examine.com — Maca Root interaction page
  3. Examine.com Examine.com — PQQ interaction page
  4. Cochrane Library Cochrane Library — Maca Root review

Reviewed by Caroline M. on April 1, 2025 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.

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The matrix has 86 supplements and 7310 pairwise interactions. Click any cell to see the full breakdown.

Back To The Vitamins Chart All PQQ (Pyrroloquinoline Quinone) (cellular health) Interactions All Maca Root Interactions