Sodium Bicarbonate
Sodium Bicarbonate
Sodium Bicarbonate
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Sodium Bicarbonate

€29,95
Quantity
€29,95
VeganInformed Sport

Amacx Sodium Bicarbonate

Amacx Sodium Bicarbonate for all out efforts between 30 seconds and 10 minutes, and the decisive minutes of a longer race: the climb, the attack, the sprint finish. During these efforts your muscles become more acidic, which can cause muscle fatigue. Sodium bicarbonate raises the bicarbonate level in your blood, a natural buffer that neutralises acid.

  • 1000 mg sodium bicarbonate per capsule
  • 274 mg sodium per capsule
  • Enteric coated capsules
  • Informed Sport certified
  • 120 vegan capsules


Our capsules have an enteric coating, designed to resist stomach acid and release the sodium bicarbonate in the intestine. Everyone responds differently, so always test it in training first, never for the first time on race day.

Take the capsules with plenty of water, 2 to 3 hours before the start. If your stomach struggles, spread them over three portions with 10 to 15 minutes in between.

Aim for 0.2 to 0.3 g per kg of body weight: 14 to 21 capsules for a 70 kg athlete. No more than 24 capsules a day.
Composition Per 1 capsule RI%*
Sodium bicarbonate 1000 mg -
of which sodium 274 mg -
*RI% = Reference intake. No reference intake established for sodium.

Ingredients: Sodium bicarbonate, capsule: (glazing agent (hydroxypropyl methylcellulose), gelling agent (gellan gum)).

Directions: Aim for 0.2–0.3 grams of sodium bicarbonate per kilogram of body weight (14–21 grams for a 70kg athlete, corresponding to 14–21 capsules). Always take the capsules with plenty of water, 2 to 3 hours before the start of your exercise. In case of stomach or intestinal discomfort, the dose can be divided into three portions, taken 10–15 minutes apart.

Recommended daily dose: 24 capsules.

Warnings: Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Store in the original packaging in a dark, dry place (8–25°C), out of reach of children, suitable for adults only. Contains a significant amount of sodium. Not suitable for people on a sodium-restricted diet, with high blood pressure, or with a kidney or heart condition. May cause stomach and intestinal discomfort. Do not use during pregnancy and breastfeeding. If you are taking medication, consult a doctor before use.

Frequently asked questions

Sodium bicarbonate (NaHCO3) is the same compound as baking soda. The International Olympic Committee lists it among the five best supported performance supplements for specific sport scenarios, together with caffeine, creatine, beta alanine and dietary nitrate. You'll find them all in our range: Caffeine Tabs, Creatine, Beta Alanine and Beet Shot (dietary nitrate).

Why not use kitchen baking soda? When sodium bicarbonate dissolves in your stomach, it reacts with stomach acid and releases gas. A full dose can cause nausea, bloating, stomach cramps or diarrhoea. Our capsules have an enteric coating designed to resist the stomach acid, and release the sodium bicarbonate in the intestine. Each capsule contains exactly 1000 mg, so you can dose precisely by body weight, and every batch is Informed Sport certified.

Yes. Sodium bicarbonate works in the blood (extracellular buffer), and the carnosine your body makes from Beta Alanine works inside the muscle (intracellular buffer). Same job, different place, so the two can be taken together.

No. A full dose is a lot of sodium: about 5.8 g for a 70 kg athlete taking 21 capsules. Skip extra salt tablets and electrolytes on top. The sodium also holds water, so you may notice some temporary fluid weight gain, worth keeping in mind in weight sensitive sports.

Some athletes get nausea, bloating, cramps or diarrhoea, especially at higher doses. The enteric coating is designed to release the sodium bicarbonate in the intestine rather than the stomach. If you still notice discomfort, spread the capsules over three portions, 10 to 15 minutes apart, with plenty of water. Always test it in training first, never on race day.

The sodium can cause temporary fluid weight gain, so keep that in mind in weight sensitive sports. Not suitable for a sodium restricted diet, high blood pressure, kidney or heart conditions, or during pregnancy and breastfeeding.

This product meets the standards of the Informed Sport programme, where every batch is independently tested for substances banned in sport using accredited laboratory methods.

This certification allows us to give athletes confidence in the purity and safety of the products they use. While Informed Sport certification is especially relevant for athletes subject to doping controls, we believe the same high standards should apply to amateur and recreational athletes who want complete trust in their nutrition. You can learn more on our Informed Sport certification page.

We are transitioning from NZVT testing to Informed Sport certification. The product itself remains exactly the same, only the certification changes. By moving to an internationally recognised testing programme, we ensure consistent, independent quality assurance for athletes worldwide.

Amacx Sups Line

The Amacx Sups-Line has been developed to support both the performance and health of athletes, with a wide range of supplements that have been carefully composed based on the latest scientific insights. These supplements contain essential vitamins, minerals and other health-promoting ingredients, such as Omega-3, creatine, caffeine and nitrate. The Sups-Line helps to improve performance, recovery after training and maintain overall health, for both professional and recreational athletes.

Amacx Sups-Line: Multivitamins, Omega-3, Creatine and more for top performance

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Amacx Supplements

The Amacx Supps Line is specifically developed to improve both the health and performance of athletes. The products in the Sups Line contain health-enhancing ingredients such as minerals, vitamins and trace elements, as well as performance-enhancing ingredients such as creatine, caffeine and nitrate.

Our experts have carefully chosen the right ingredients and dosages. In addition, each supplement has been thoroughly researched and scientifically tested for effectiveness. This not only ensures that all products in the Supps Line fit together perfectly, but also that they can be excellently combined with the products from one of our other lines.

Whether you are before or after an athletic challenge, regardless of whether you are a recreational athlete or an elite athlete, with the Supps Line you no longer have to worry about the right support for your health and performance. Explore our extensive assortment and Upgrade Your Limits!

Sports nutritionist Martijn Redegeld from Amacx

Martijn Redegeld, sports nutritionist at Amacx Sports Nutrition, has been closely involved in optimizing and expanding the Amacx range. 

"Within the Amacx Sups-Line, you'll find all the supplements that can support the performance and health of an athlete, whether professional or recreational. All supplements are developed based on the latest scientific insights."

Martijn Redegeld