Can You Take Blackcurrant Extract With Creatine? What Active Kiwis Should Know

Creatine is already one of the simple, settled parts of your day. You know why you take it, you are not shopping for your first sports supplement, and now New Zealand blackcurrant has caught your attention. The question is whether adding blackcurrant makes sense beside creatine, whether the two clash, or whether taking both is simply unnecessary.

Can you take blackcurrant extract with creatine?

Creatine and blackcurrant extract are different kinds of supplements with different research stories. Creatine has a substantial evidence base for strength, power and repeated high-intensity work, while defined New Zealand blackcurrant preparations have a separate and still developing body of exercise research.¹²

Current evidence does not give us a reason to say the two cancel each other out or compete for the same job. At the same time, a controlled human trial showing a special benefit from taking blackcurrant extract with creatine was not identified. That means there is no good basis for promising synergy, better creatine uptake or extra strength simply because the two are taken together.

The sensible way to think about them is separately. If you have a health condition, take regular medicines, or have individual sports-nutrition requirements, check that each supplement suits you rather than assuming the combination is suitable for everyone.

Creatine already has a clear job

Supplemental creatine increases muscle creatine stores, supporting the rapid energy system used during short, hard efforts. Its strongest evidence is around strength, power, maximal-effort work and repeated bursts of high-intensity exercise.¹

It is also normally used consistently. The value of creatine is not based on treating it as a one-off post-workout rescue product or needing to pair it with blackcurrant at a particular moment. If creatine already has a clear place in your training, there is no need to reinvent that job just because you are considering another supplement.

Blackcurrant comes into the conversation from a different direction

Blackcurrants are naturally rich in anthocyanin-related polyphenols. Defined New Zealand blackcurrant preparations have been studied across exercise settings, including repeated high-intensity activity, cycling, running and resistance training.

A 2026 systematic review of 21 randomised crossover trials found the strongest performance signal in intermittent and team-style activities involving repeated hard efforts. The authors still rated the overall certainty of performance evidence as low because the studies were small and varied in design, dose and exercise type.² Our NZ blackcurrant sports performance guide looks at that research in more detail.

A separate 2026 trial in 20 resistance-trained adults reported encouraging results for selected strength, lifting-volume and bench-press power outcomes, while other measures did not improve. Importantly for this article, participants stopped creatine and other performance supplements before testing, so the study did not test blackcurrant with creatine.³

Those studies used their own research preparations and protocols. They did not test our finished Kiwi Superfoods Blackcurrant Skin Extract, so we do not transfer their sports results directly to our product. If your main interest is post-training recovery rather than performance, our muscle recovery supplements guide keeps that question separate too.

Do blackcurrant and creatine need to be taken at the same time?

No special same-time window has been established. Creatine is generally understood as a consistent-use supplement, not something whose effect depends entirely on being swallowed beside blackcurrant.

For our Blackcurrant Skin Extract, the current directions are two capsules daily, with or without food. We recommend following the current directions for each product rather than borrowing timing or dosage from unrelated clinical studies. There is no need to copy a research dose or create a special gap between creatine and blackcurrant without evidence for doing so.

Do antioxidants interfere with training gains?

This is the part that deserves a little more nuance. Exercise creates oxidative signals that can be involved in the way your body adapts to training. Research concerns have been strongest around some high-dose antioxidant approaches, particularly isolated vitamins C and E, where certain studies have reported blunted training-related signals or adaptations.⁴

That does not mean every food-derived polyphenol or polyphenol-rich supplement behaves the same way. The current sports-nutrition evidence is more context dependent: compound, dose, timing, training status, diet and the type of exercise can all matter.⁴

So we would not say that all antioxidants interfere with muscle or training adaptations. We also would not promise that every blackcurrant supplement has zero effect on adaptation. And this uncertainty is not a reason to invent a special time gap between creatine and our Blackcurrant Skin Extract.

What taking the two together has not proved

At this point, research does not establish that:

• blackcurrant improves creatine uptake
• blackcurrant makes creatine work better
• creatine increases anthocyanin effects
• taking both together produces greater strength gains
• the combination improves recovery more than either one alone
• a particular same-time or separated timing approach is superior

That is why we prefer to give each ingredient its own job instead of turning the pairing into a claim the evidence has not earned.

Why we keep our blackcurrant story separate from creatine

We do not need to turn blackcurrant into a creatine enhancer to believe it is worth considering. Our interest starts with New Zealand-grown blackcurrant itself, its anthocyanin-related plant compounds, and the growing human exercise research around defined NZ blackcurrant preparations.

Our Blackcurrant Skin Extract uses NZ-grown blackcurrant skin extract in a convenient capsule format and includes added vitamin C. Each bottle currently contains 60 capsules, our directions are two capsules daily with or without food, and the product is described as gluten free and vegan-friendly.

We like the concentrated berry-skin format because it gives you a simple way to add NZ-grown blackcurrant without another drink mix or powder. If you want to look more closely at the berry side of the story, our guide to New Zealand blackcurrant anthocyanins explains the plant compounds, while our blackcurrant collection shows the current options.

We keep the line clear: our finished product has not been clinically proven to reproduce the results of individual sports trials, and we do not position it as a replacement for creatine. It is a separate NZ-grown berry-polyphenol supplement that may appeal to active people who want that kind of addition.

If creatine is only one of several supplements you use

Once creatine sits beside a pre-workout, multivitamin, electrolyte product and other supplements, ingredient overlap and unnecessary complexity matter more. A pre-workout may already contain creatine or other active ingredients, so check the label before adding more.

More products do not automatically create better results. Keeping each supplement tied to a clear reason for using it makes it easier to spot duplication, stay within label directions and know what you are actually taking.

Before you get started

For blackcurrant specifically, check first if you are pregnant or breastfeeding, take phenothiazine medicines, have a bleeding disorder, take medicines that affect clotting such as warfarin, or have surgery coming up. Our blackcurrant supplement safety guide covers these cautions in more detail.

If you are a tested athlete

Sport Integrity Commission Te Kahu Raunui says supplement products carry contamination risk and that athletes are responsible under strict liability for what is found in their sample. The Commission and WADA do not approve supplements.⁵

We are not claiming that Kiwi Superfoods Blackcurrant Skin Extract is WADA-approved, certified for sport, independently batch tested or guaranteed prohibited-substance free. If you compete under anti-doping rules, use the Commission's supplement decision guidance and make your own risk decision with appropriate sports-nutrition support.

Common questions

Can you take blackcurrant extract with creatine?

They are different supplements with separate evidence bases, and current research does not give us a reason to say they cancel each other out or compete for the same job. Direct controlled human research proving a special benefit from taking blackcurrant extract with creatine was not identified, so we would not claim synergy or blanket suitability for everyone.

Do creatine and blackcurrant do the same thing?

No. Creatine is best known for increasing muscle creatine stores and supporting strength, power and repeated high-intensity work. Blackcurrant research focuses on anthocyanin-rich preparations and a separate set of exercise and recovery questions.

Should I take blackcurrant extract at the same time as creatine?

No special same-time window has been established. Follow the current directions for each product rather than creating a timing rule from studies that did not test the combination.

Does blackcurrant make creatine work better?

That has not been established. Current research does not show that blackcurrant improves creatine uptake, raises muscle creatine stores or makes creatine more effective.

Do antioxidants interfere with muscle or training adaptations?

Some high-dose antioxidant approaches, especially isolated vitamins C and E, have raised concerns about blunting parts of the training response. That does not mean every polyphenol-rich food or supplement has the same effect, and the outcome can depend on compound, dose, timing, training status and context.

Can I take blackcurrant extract if I already use a pre-workout?

Check the pre-workout label first. It may already contain creatine or other active ingredients, and adding more products can create unnecessary overlap. If you use medicines or have individual health or sports-nutrition needs, get personalised advice before combining supplements.

Is blackcurrant useful for strength training?

A 2026 trial in resistance-trained adults reported encouraging results for selected strength and power outcomes, but not everything measured improved. It is promising early evidence, not proof that blackcurrant is an established strength supplement or that our finished product will reproduce those results.

Should tested athletes use blackcurrant supplements?

Tested athletes need to make their own risk decision. Sport Integrity Commission Te Kahu Raunui warns that supplements can be contaminated and that strict liability applies, while neither the Commission nor WADA approves supplements.

Who should check before taking blackcurrant extract?

Check with a qualified health professional if you are pregnant or breastfeeding, take phenothiazines, have a bleeding disorder, take medicines that affect clotting such as warfarin, are preparing for surgery, or have another health condition or medicine that could affect supplement suitability.

Creatine can stay simple

Creatine already has a clear job. If it works for your training plan, there is no need to turn blackcurrant into an enhancer for it.

If what you want is to explore an NZ-grown berry-polyphenol supplement as something separate, our Blackcurrant Skin Extract is a straightforward option worth considering. Keep the two stories clear, follow each product's directions, and choose the addition because it fits what you actually want from your supplement plan.

References

1. NIH Office of Dietary Supplements. Dietary Supplements for Exercise and Athletic Performance.
2. Gholamian S, et al. Effect of New Zealand Blackcurrant Supplementation on Sports Performance: A Systematic Review. Current Developments in Nutrition. 2026.
3. Koozehchian MS, et al. Effects of Short-Term Low- and High-Dose New Zealand Blackcurrant Supplementation on Exercise and Cognitive Performance in Resistance-Trained Adults. Nutrients. 2026.
4. Gonzalez DE, et al. International Society of Sports Nutrition position stand: effects of dietary antioxidants on exercise and sports performance. Journal of the International Society of Sports Nutrition. 2026.
5. Sport Integrity Commission Te Kahu Raunui. Supplements.