I’m a fan of the purple stuff. To most people that means BEETROOT juice but to me that also includes concentrated BLACKCURRANT extract in the form of CURRANZ tablets which include the active ingredient blackcurrant anthocyanin-rich extract (BAE)
It tastes nice, I like blackcurrant jam in any case so this supplement had me sold on my currants of choice in any case. In all sporting seriousness, review the older scientific studies below, these do offer race-day performance booting potential as well as improved DOMS.
Also, check out the latest study: CURRANZ supports recovery through the management of OS and inflammation which concludes by stating
Daily consumption of BAE for 5 weeks serves to enhance the exercise recovery effectiveness of a single consumption of BAE and promotes beneficial/protective antioxidant/anti-inflammatory cellular events that facilitate exercise recovery.
Other pesky Science:
Easy Performance Boost For Newbie Endurance Athletes with CurraNz – #Science
Many thanks to reader sbobet for the feedback and her usage of 1 tab per day for a month.
‘Review’ with Discount Code
PS I get free samples from the manufacturer from time to time but never any money.
Last Updated on 16 January 2026 by the5krunner
My favourite kit and nutrition
- Injinji – Runners protect your toes. Avoid discomfort and minor injury. Run more. Run faster. I use them.
- Garmin 90-degree charging adapter — The small adapter that keeps your charging cables tidy. Essential for race day. I use one.
- Garmin charging puck — the fastest and most reliable way to top up your Garmin before a session. I use one.
- Ravemen FR300 — Front light that mounts directly under your Garmin or Wahoo head unit. Keeps your bars clean and your beam pointed where it matters. I use one.
- Body Glide – The blue anti-chafe stick that all swimmers and many runners use. I use it.
- Maurten — The race nutrition trusted by elite athletes. Gels and drink mixes engineered to be easy on the stomach. I use them.
- Garmin Varia RTL515 — A radar rear light that alerts you to vehicles approaching from behind. Pairs with your Edge or Garmin watch. I use this model.
- Favero Assioma Pro RS2 — The power-meter pedals most serious cyclists choose. Accurate, easy to move between bikes. I use this model.
- Garmin Forerunner 970 — A serious choice for a pro-grade triathlon watch. I use this.
- Polar H10 — My daily driver for accurate, waking HRV readings.
- Wahoo ELEMNT Roam 3 — The bike computer that has the feature Garmin lacks: usability. I use mine on most rides.
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. ID
