CurraNZ is an award-winning, 100% naturally sourced, health and fitness supplement made from New Zealand blackcurrants.
A best-in-class product breakthrough underpinned by over 40 published studies, CurraNZ can maximise your exercise efforts whilst promoting fat metabolism and cardiovascular function, which are essential to health and human performance.
The ultra supplement for Optimal performance. Unprecedented fat burning. Three-times faster muscle recovery - GUARANTEED*
CurraNZ primes your body for exercise to help you be your personal best, naturally, whatever your game.
*If you don't feel the post-exercise muscle recovery difference within a month, we offer a full money-back guarantee on purchases via curranz.com
A natural blood flow-promoter and antioxidant, CurraNZ delivers a powerful combination of recovery, performance, fat metabolism and health benefits.
Made from a unique berry that enhances ‘ultra’ performance, Vegan-friendly CurraNZ is perfect for health and fitness, to help you live life to the full.
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Winner of eight major international awards in North America, Europe and Asia, CurraNZ is the most researched and trusted New Zealand blackcurrant supplement brand globally. Discover the 'CurraNZ difference' today.
The ingredient discovery of the decade, CurraNZ sets the industry standard thanks to its research-backed efficacy for human health and performance, supported by real-world results.
Guaranteed recovery:
49% less soreness, 3x faster muscle recovery, CurraNZ will change your readiness to train.
Next-level for performance:
One of the most effective performance-enhancing supplements available, CurraNZ can deliver running, cycling and climbing improvements of up to 11%.
Unprecedented fat burning:
Over 12 studies confirm CurraNZ makes your body favour fat as fuel at rest and during exercise.
An ultra supplement with game-changing benefits:
Powerful plant-based nutrients to help you achieve your health and fitness goals - naturally.
To be the best, you have to use the best. CurraNZ has been helping people smash their health and fitness goals for a decade and is proud to be the science leader in our field.
Two weeks daily intake of anthocyanin-rich New Zealand blackcurrant extract CurraNZ enhances whole-body fat oxidation during supine rest in healthy males, Dietary Supplements and Nutraceuticals, August 2023. DOI: https://www.doi.org/10.31989/dsn.v2i8.1124
Running-Induced Metabolic and Physiological Responses Using CurraNZ New Zealand Blackcurrant Extract in a Male Ultra-Endurance Runner: A Case Study. https://doi.org/10.3390/jfmk7040104
Daily and Not Every-Other-Day Intake of Anthocyanin-Rich CurraNZ New Zealand Blackcurrant Extract Alters Substrate Oxidation during Moderate-Intensity Walking in Adult Males. https://doi.org/10.1080/19390211.2020.1841356
CurraNZ NewZealand Blackcurrant Extract Enhances Fat Oxidation During Submaximal Exercise in the Heat. https://doi.org/10.1016/j.jsams.2020.02.017
CurraNZ New Zealand blackcurrant extract enhances fat oxidation during prolonged cycling in endurance-trained females. http://doi.org/10.1007/s00421-018-3858-3
CurraNZ New Zealand blackcurrant extract improves cycling performance and fat oxidation inCyclists. http://doi.org/10.1007/s00421-015-3215-8
Dose effects of CurraNZ NewZealand blackcurrant on substrate oxidation and physiological responses during prolonged cycling. https://doi.org/10.1007/s00421-017-3607-z
Intake Duration ofAnthocyanin-Rich CurraNZ New Zealand Blackcurrant Extract Affects Metabolic Responses during Moderate Intensity Walking Exercise in Adult Males. https://doi.org/10.1080/19390211.2020.1783421
Enhanced Walking-Induced Fat Oxidation by CurraNZ New Zealand Blackcurrant Extract Is Body Composition-Dependent in Recreationally Active Adult Females. https://doi.org/10.3390/nu14071475
Intake Duration of Anthocyanin-Rich CurraNZ New Zealand Blackcurrant Extract Affects Metabolic Responses during Moderate Intensity Walking Exercise in Males. https://doi.org/10.1080/19390211.2020.1783421
CurraNZ New Zealand blackcurrant extract improves high-intensity intermittent running. https://dx.doi.org/10.1123/ijsnem.2015-0020
Effect of CurraNZ New Zealand blackcurrant extract on performance during the running based anaerobic sprint test in trained youth and recreationally active male football players. https://doi.org/10.3390/sports5030069
Beneficial effects of CurraNZ New Zealand blackcurrant extract on maximal sprint speed during the Loughborough Intermittent Shuttle Test. https://doi:10.3390/sports4030042
CurraNZ New Zealand blackcurrant extract improves cycling performance and fat oxidation in cyclists. https://doi.org/10.1007/s00421-015-3215-8
CurraNZ New Zealand Blackcurrant Extract Attenuates Enterocyte Damage Following Exertional Heat Stress https://doi.org/10.1123/ijsnem.2021-0330
Anthocyanin-Rich Supplementation: Emerging Evidence of Strong Potential for Sport and Exercise Nutrition. https://doi.org/10.3389/fnut.2022.864323
Effects of anthocyanin-rich CurraNZ New Zealand blackcurrant extract on Rugby Union specific tests, https://doi.org/10.3390/sports10100152P
CurraNZ New Zealand blackcurrant extract enhances muscle oxygenation during repeated intermittent forearm muscle contractions in advanced and elite rock climbers. https://doi.org/10.1123/ijsnem.2019-0365
CurraNZ New Zealand Blackcurrant Extract Enhances Forearm Muscle Oxygenation During andFollowing Isolated Exhaustive Forearm Exercise in Intermediate-Level RockClimbers. https://doi.org/10.1123/ijsnem.2019-0365
Effects of CurraNZ New Zealand blackcurrant extract on sport climbing performance. https://doi.org/10.1007/s00421-019-04226-2
The effect of New Zealandblackcurrant on sport performance and related biomarkers: a systematic review and meta-analysis. https://doi.org/10.1186/s12970-020-00354-9
The effects of an acute dose of New Zealand blackcurrant extract on 5 km running performance Int J Sport Nutr Exerc Metab 2023 https://doi.org/10.1123/ijsnem.2023-0029
Effects of CurraNZ, a New Zealand Blackcurrant Extract during 1 Hour of Treadmill Running in Female and Male Marathon des Sables Athletes in Hot Conditions: Two Case Studies, 2024. Journal of Func. Morph and Kinesiology https://doi.org/10.3390/jfmk9020076
Consumption of CurraNZ New Zealand Blackcurrant Extract Improves Recovery from Exercise-Induced Muscle Damage in Non-Resistance Trained Men and Women: A Double-Blind Randomised Trial. https://doi.org/10.3390/nu13082875
Consumption of an Anthocyanin-Rich Extract Made From New Zealand Blackcurrants Prior to Exercise may Assist Recovery from Oxidative Stress and Maintains Circulating Neutrophil Function: A Pilot Study. https://doi.org/10.3389/fnut.2019.00073
Daily consumption of NZBCE for five weeks supports recovery through management of Oxidative Stress and inflammation: A Randomized Placebo Controlled Pilot Study. https://doi.org/10.3389/fnut.2020.00016
Short-term blackcurrant extract consumption modulates exercise-induced oxidative stress and lipopolysaccharide-stimulated inflammatory responses. https://doi.org/10.1152/ajpregu.90740.2008
New Zealand blackcurrant extract enhances skeletal muscle glycogenre-synthesis in response to sub-optimal carbohydrate ingestion, [Abstract],International Sports and Exercise Nutrition Conference, Manchester, December 2022 (publication due 2023)
CurraNZ, an anthocyanin-rich New Zealand blackcurrant extract reduces treadmill running-induced gastro-intestinal symptoms in the heat: A pilot study. Proceedings of the Nineteenth International Society of Sports Nutrition (ISSN) Conference and Expo, 2023, https://www.tandfonline.com/doi/full/10.1080/15502783.2023.2187955 [In review]
New Zealand blackcurrant extract modulates the heat shock response in men during exercise in hot ambient conditions. European Journal of Applied Physiology https://doi.org/10.1007/s00421-024-05439-w, February 2024
Anthocyanin-rich blackcurrant extract preserves gastrointestinal barrier permeability and reduces enterocyte damage but has no effect on microbial translocation and inflammation after exertional heat stress, International Journal of Sports Nutrition and Exercise Metabolism, July 2022. DOI: 10.1123/ijsnem.2021-0330
CurraNZ New Zealand Blackcurrant Alters Physiological Reponses and Femoral Artery Diameter during Sustained Isometric Contraction. https://doi.org/10.3390/nu9060556
Effect of Intake Duration of Anthocyanin-rich CurraNZ New Zealand Blackcurrant Extract on Cardiovascular Responses and Femoral Artery Diameter during Sustained Submaximal Isometric Contraction. https://doi.org/10.1080/19390211.2021.1948943
Cardiovascular function during Supine Rest in Endurance-Trained Males with New Zealand Blackcurrant: A Dose-Response Study. https://doi.org/10.1007/s00421-016-3512-x
Dose Effects of CurraNZ NewZealand Blackcurrant on Substrate Oxidation and Physiological Responses During Prolonged Cycling. http://doi.org/10.1007/s00421-017-3607-z
Effect of blackcurrant anthocyanins on the activation of endothelial nitric oxide synthase (eNOS) in vitro in human endothelial cells. https://doi.org/10.1021/jf201116y
Upregulation of endothelial nitric oxide synthase bycyanidin-3-glucoside, a typical anthocyanin pigment. (2004). https://doi.org/ 10.1161/01.HYP.0000135868.38343.c6
The Effect of Anthocyanin-Rich Foods or Extracts on Vascular Function in Adults: A Systematic Review and Meta-Analysis of Randomised Controlled Trials. http://doi.org/10.3390/nu9080908
Effects of blackcurrant extract on arterial functions in older adults: A randomized, double-blind, placebo-controlled, crossover trial. https://doi.org/10.1080/10641963.2020.1764015
Anthocyanin-Rich NewZealand Blackcurrant: Implications for Health, (2022). Agro FOOD Industry https://doi.org/10.3389/fnut.2022.864323
Effect of CurraNZNew Zealand Blackcurrant on Blood Pressure, Cognitive Function and Functional Performance in Older Adults. http://doi.org/10.1080/21551197.2019.1707740
Effects of CurraNZ blackcurrant extract on arterial functions in older adults: A randomized, double-blind, placebo-controlled, crossover trial. https://doi.org/10.1080/10641963.2020.1764015
Effect of CurraNZ New Zealand Blackcurrant on Blood Pressure, Cognitive Function and Functional Performance in Older Adults. https://doi.org/10.1080/21551197.2019.1707740
Short term, but not acute, intake of CurraNZ New Zealand blackcurrant extract improves insulin sensitivity and free living postprandial glucose excursions in individuals with overweight or obesity. https://doi.org/10.1007/s00394-020-02329-7
Plasma Uptake of Selected Phenolic Acids Following CurraNZ NZBCE Supplementation in Humans. https://doi.org/10.1080/19390211.2021.1914802
Drinks containing anthocyanin-rich blackcurrant extract decrease postprandial blood glucose, insulin and incretin concentrations. https://dio.org/10.1016/j.jnutbio.2016.09.002
Berries modify the postprandial plasma glucose response to sucrose in healthy subjects. http://doi.org/10.1017/S0007114509992868
Postprandial glucose, insulin, and free fatty acid responses to sucrose consumed with blackcurrants and lingonberries in healthy women. Am J ClinNutr 96(3):527–533. https://doi.org/10.3945/ajcn.112.042184
To ensure the best buying experience for our customers in The US, we've partnered up with a number of retailers. Please find our list of official suppliers below. In order to purchase, click the logo and it will take you to the suppliers store.
The researched health and sports benefits of CurraNZ supplements are characterised by Enzans™, key identifiers of our proprietary New Zealand blackcurrant bioactives that deliver the outstanding properties of our product. CurraNZ is the only New Zealand blackcurrant supplement brand on the global market that is validated by dozens of product-specific studies in gold-standard, peer-reviewed research.
99% of blackcurrant products and formulations do not meet our exacting standards due to the high variation in fruit bioactives and production methods that influence the efficacy of blackcurrant functional food products and dietary supplements globally.
CURRANZ – THE SCIENCE LEADER
Thanks to New Zealand's unique growing climate, clean, green environment and special cultivars, CurraNZ blackcurrants possess one of the highest anthocyanin densities of any berry, which rank amongst the most important phenolics found in food.
Anthocyanins are important bioactives that prime the body for exercise to support cardiometabolic function, enable faster muscle recovery and improve endurance. Thanks to our proprietary extraction process, CurraNZ delivers the equivalent of a generous handful of fresh blackcurrants in each capsule to help you be your personal best.
Thanks to New Zealand's unique growing climate, clean, green environment and special cultivars, CurraNZ blackcurrants possess one of the highest anthocyanin densities of any berry, which rank amongst the most important phenolics found in food. Each capsule contains the equivalent of a generous handful of fresh blackcurrants, to help you be your personal best.
Get Started
To be the best, you have to use the best. CurraNZ has been helping people smash their health and fitness goals for a decade and is proud to supply elite athletes worldwide.
'I have now been taking CurraNZ for a couple months through some of the hardest training weeks I have done as I train for Western States 100. I have never felt better, can handle the training load a lot easier, and am seeing improvements in my recovery and performance. CurraNZ works and I am excited to continue with this product as I tackle some of the biggest Ultras in the world!'
'I took it for a test run! I did the Milford Track (60km and 9hrs of running) in one go on legs that were definitely not trained for that distance/time. I had taken CurraNZ for about a month before I did the run, and was so surprised at how my legs responded to the fatigue of the run, as well as recovering quickly without any DOMS!'
'My recovery phase (of hard training) matched the science/study results of faster recovery with less muscle soreness. The Anthocyanins have been studied to improve natural blood flow (read: recovery+ & performance+) so I’m excited to say I was feeling really solid through these sessions! #NewFan'
'After a recommendation from a trusted elite running friend I started using CurraNZ and have been able to increase the intensity of my sessions. Since then I have set new PBs for every distance from 5,000m to marathon and have been getting faster in my 40s. For the first time ever, the product has allowed me to go on training runs the days following a marathon. The reduced DOMS is really significant - my running mates have been amazed that can run the day after a race. I put it down to CurraNZ.'
'I’ve seen big differences from year to year using CurraNZ. I train my body through the full spectrum - slow energy training, tempo work, threshold stuff, VO2max – and I’m more efficient at every level of output.“Everything has moved on - even my coach has been taken aback. In my last track session I was 5 seconds per kilometre faster and my maximum heart rate was seven beats lower. “That’s significant and adds up to a lot of improvement and at a lower cost too. I’ll happily attribute that to CurraNZ’s vasodilatory action and creating less resistance to help blood and oxygen delivery - it all stacks up.“CurraNZ is the only supplement I use and has been a game changer.'
'CurraNZ helped me get into the greatest shape ever at the age of 43. The supplement’s endurance, fuelling and recovery benefits have been crucial for a long-distance athlete like me.'
'The feedback from my footballers has been positive, as an example, athletes who are experiencing overtraining syndrome have found that it’s disappeared within a week of using CurraNZ.'We use CurraNZ for recovery during intense periods and also pre-exercise, because of the improvements it delivers to blood flow.'
'I started using CurraNZ over the winter while I was healing a bone stress injury, with the hope of supporting peripheral blood flow. I continued to use it as I eased back into a regular training regimen and have been extremely pleased with its effects on recovery and performance. The research that is emerging on polyphenol anthocyanins, a strong antioxidant within black currants, and its benefits for endurance athletes is very promising and a driving factor in my usage of CurraNZ. I am excited to grow with this brand and continue supporting my athletic career with science.'
'I took two CurraNZ capsules three times a day when setting the speed record on the Appalachian Trail in 2023. I felt less fatigued and this showed physically and mentally as I didn’t spiral like I did on the attempt the previous year. I felt fitter, stronger and had more focus and clarity.
I’m a big berry person anyway, so to have these high-antioxidant berries in a convenient capsule knowing the invaluable benefits they provide with food-based nutrient support every day, was great. CurraNZ is my favourite supplement now.'
