Ultimate Guide - FLYCARB

What is FLYCARB?

FLYCARB is a sports nutrition brand built to help athletes train harder, delay fatigue, and perform at their best, making elite-level fuelling accessible to every athlete. Founded in 2024 by endurance athletes Josh Elston-Carr and Jack Gray, the brand launched with its breakthrough sodium bicarbonate product, FLYCARB BICARB.

Where is FLYCARB Based?

FLYCARB is based in Cambridge, United Kingdom.

Is FLYCARB a Good Brand?

• Yes, FLYCARB is highly regarded within the performance sports community, especially among athletes who use sodium bicarbonate‑based fuelling strategies:
• Their core product, BICARB, has been used by thousands of athletes including some who’ve reported personal bests, national records and even world records while using it¹.

• The brand has Informed Sport certification for at least some versions of their BICARB products, which is a strong endorsement for athletes concerned about banned substances, meaning it’s tested and certified safe for competition².

About FLYCARB BICARB

Key Features →

• Contains sodium bicarbonate combined with carbohydrate to support endurance and high-intensity performance.
• Helps buffer lactic acid build-up, delaying fatigue and maintaining power output.
• Pre-measured, weight-based servings allow convenient administration of the evidence-based dose (200-400 mg/kg body mass)³⁻⁶.
• Aid Station stocks BICARB in 12g, 16g, 20g & 24g serving sizes in a mango flavour. 

Who It’s For →

• Endurance and high-intensity athletes who want to delay fatigue and push harder.
• Perfect for runners, cyclists, triathletes, and anyone using evidence-based bicarbonate dosing pre-race or training.

How To Use →

• Take your weight-based FLYCARB BICARB bicarb mix and energy mix 120-150 minutes before exercise with a small, carbohydrate-rich meal (~1.5 g/kg body mass CHO) for optimal performance³⁻⁶.
• Mix the Energy Mix with 60 ml of water, then add the BICARB Mix and consume immediately.
  

How To Pick The Right Dose

• For athletes under 60kg → Choose FLYCARB BICARB 12g
• For athletes between 60-80kg bodyweight → Choose FLYCARB BICARB 16g
• For athletes between 80-90kg bodyweight → Choose FLYCARB BICARB 20g
• For athletes 90kg and over → Choose FLYCARB BICARB 24g

Ash Miller
Dietitian and Nutritionist (Masters)
Bachelor of Physical and Health Education
Instagram: @ashthomo_nutrition

Reference List

1. FlyCarb. Fuelling Your Dreams with High‑Performance Sports Nutrition [Internet]. [place unknown]: FlyCarb; [date unknown] [cited 2026 Jan 5]. Available from: https://www.flycarb.com/
2. FLYCARB | Informed Sport. In: Informed Sport database [Internet]. Chelmsford (UK): sport.wetestyoutrust.com; [cited 2026 Jan 5]. Available from: https://sport.wetestyoutrust.com/supplement-search/brand/flycarb
3. International Society of Sports Nutrition. (2021). Position stand on sodium bicarbonate supplementation: doses, timing, and effects. J Int Soc Sports Nutr, 18, 61.
4. McNaughton, L. R., Gough, L., Deb, S., Bentley, D., & Sparks, S. A. (2016). Recent developments in the use of sodium bicarbonate as an ergogenic aid. Current Sports Medicine Reports, 15(4), 233–244.
5. Burke, L. M., Peeling, P., & Gifford, J. A. (2023). Contemporary supplements for endurance athletes. International Journal of Sport Nutrition and Exercise Metabolism, 33(1), 1–15.
6. AIS. (2025). Sodium Bicarbonate Infographic. Australian Institute of Sport. Retrieved from
   https://www.ausport.gov.au/ais/nutrition/supplements/group_a/performance-supplements2/bicarbonate

Disclaimer:

The content in this blog is for general information only and is not a substitute for professional medical advice, diagnosis, or treatment. Always speak with your doctor or allied health team before changing your diet, exercise, or taking supplements, especially if you have a health condition or take medication. Please use this information as a guide only. Aid Station doesn't take responsibility for individual outcomes.