Refuel Electrolyte Tabs

When you sweat, you don’t just lose fluids – you also lose electrolytes such as sodium, potassium, magnesium, and calcium. Sodium in particular is crucial, as it helps the body retain fluid in the bloodstream. Dehydration can lead to reduced blood volume, increased heart rate, faster depletion of carbohydrate stores, and training that feels unnecessarily hard.

That’s why ATNU Refuel TABS work better than most:
Most electrolyte products only provide sodium. But the body needs both sodium and potassium. Sodium helps retain fluid in the blood, while potassium keeps fluid inside the muscles. Together, they ensure that fluids are delivered where you need them most.

ATNU Refuel helps you maintain fluid in the bloodstream, allowing you to sustain intensity for longer – especially in hot conditions or during prolonged exercise. Our tablets are formulated with a focus on sodium and potassium, not magnesium. Through sweat, you typically lose 500–2000 mg of sodium per hour, but only around 1–5 mg of magnesium. Research is clear: magnesium is not relevant for hydration.

Safety and excipients
There has been increased focus on excipients (fillers) in electrolyte tablets. Research shows no evidence that excipients such as sorbitol are harmful at normal doses. Major international organizations such as EFSA (European Food Safety Authority) and the FDA have approved these ingredients as safe for use in food products.