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02 During

The 02 During drink-gel combination is the most effective choice for anyone who wants to enhance their performance during longer or intense sessions. Both the gel and the drink mix are formulated with both mono- and polysaccharide carbohydrates derived from maltodextrin (DE9), glucose, and fructose. This ensures consistent energy levels while minimising any chance of GI issues.

02 During is a no-nonsense high-carb solution available as a drink mix or gel and both contain 45 g of carbohydrates and 343 mg of sodium. This enables you to plan your carb intake meticulously and limit the chances of gastrointestinal issues to an absolute minimum, making it the easiest combination for anyone trying to reach that 90 g/h limit. 

Given the concentrated carbohydrate content in each unit, you can streamline your hourly intake to just one (45g), two (90g), or three (135g) units. This not only simplifies your training regimen and reduces what you need to carry but also ensures you're maximising value with every session. This way, you're always powered by race-quality products.

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Intra-activity drink mix & Gel

  • Both fast and prolonged energy and improved absorption
  • 45 g of carbohydrates and 343 mg of sodium per drink mix
  • Minimises stomach and gut issues due to 2:1:1.5 maltodextrin-to-glucose-to-fructose ratio

Carbohydrates (2:1:1.5) 45 g

Since carbohydrates are the main energy source during exercise, the main ingredient of our during sports supplement should be carbohydrates. 02 During contains a mixture of different carbohydrate sources as this enables athletes to absorb and burn more fuel during exercise. Under normal circumstances, glucose uptake is limited to approximately 60 g per hour. The intake of multiple carbohydrate sources, like fructose, elevates carbohydrate absorption in the intestine up to 90 g. per hour. Furthermore, the use of multiple carbohydrate sources makes GI issues to be a thing of the past.

The ratio maltodextrin:glucose:fructose of 2:1:1.5 has been shown to elevate the rate of appearance of systemic glucose/lactate compared to the isocaloric amount of glucose only.

Sodium (Sodium Chloride) 343 mg

Sodium is the main electrolyte lost in sweat and the only electrolyte to impact performance during exercise. Other electrolytes (potassium, calcium, magnesium) are also lost in sweat, but in minimal quantities, and don't need to be replenished during activity.

The recommendation is to consume a sports drink with 0.5 – 0.7 g/L sodium for shorter than three hours and 0.7 – 1 g/L sodium for exercise sessions lasting longer than three hours. 02 During, contains a sodium concentration of 0.7 g/L. To one serving of 49 g, 620 mL of water should be added. It is strongly suggested to add sodium in the form of NaCl. One serving, therefore, contains 870 mg of NaCl salt / 343 mg of sodium.


Losing fluids through sweating can lead to dehydration, which impairs performance. It's crucial for athletes to remain hydrated by consuming liquids before, during, and after their activities.

Dehydration can cause muscle cramps and diminished performance if an athlete isn't adequately hydrated during their exercise. Ensure you mix 02 During with enough water, ideally 600-700 ml.

Insufficient hydration during sports can have various adverse effects. One primary concern is the loss of sodium through perspiration. Sodium is vital for maintaining the body's fluid balance and muscle function. A deficiency in sodium can result in hyponatremia, a condition where the blood's sodium levels become too low. This can lead to symptoms like nausea, headaches, weakness, cramps and gut issues.

Furthermore, carbohydrates play a pivotal role as an energy source during physical activities. Without adequate carbohydrate intake, an athlete can experience rapid fatigue, negatively impacting performance. The body relies on carbohydrates to replenish glycogen, the primary energy storage in muscles. A lack of glycogen can result in fatigue, reduced muscle strength, and decreased endurance.

In conclusion, it's essential for athletes to drink sufficiently and pay attention to their sodium and carbohydrate intake during sports to ensure peak performance and avoid potential health risks. To rely solely on gels, with some sips of water here and there, is not a good idea.
How to use
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Mix one serving of the drink mix with 620 mL of water. The gel is consumed as is.
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Mix with a shaker or water bottle.
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Depending on the duration of your training or race, hourly intake is simple:
<2-hour session: 1 unit per hour (45 g per hour)
>2-hour session: 2 units per hour (90 g per hour)