SiS Hydro Tablets Red Fruits
The red fruit flavour is the only one in the range where green tea extract is replaced by elderberry powder as a botanical addition. The SiS Hydro Tablets Red Fruits provide the same core of electrolytes as the rest of the range: sodium, potassium, calcium and magnesium, supplemented with vitamins B1, B2 and B6. The flavour has a mild red fruit character, and the colour in the glass is deep red thanks to beetroot red as a colouring agent. Sugar-free and virtually calorie-free, suitable for vegans and vegetarians.
Sodium is not just salt
Of all the electrolytes you lose through sweat, sodium accounts for the largest quantities. Depending on your body and the conditions, you lose between 200 and 2000 milligrams per litre of sweat. But it's not just about that quantity itself. Without enough sodium, your body retains water less effectively. You can drink large amounts of water and still remain dehydrated, because your kidneys quickly eliminate fluid if there's too little sodium in the blood. Each tablet provides 345 mg of sodium, at a concentration of 30 mmol/L in 500 ml of water. This concentration was not chosen at random.
30 mmol/L and the British sailors in Beijing
In 2008, the British Olympic sailing team asked SiS for help with hydration. Sailors sweat a lot, even if it may seem contradictory, and fluid loss in changing weather and wind conditions makes hydration difficult to manage. SiS formulated a tablet that provides exactly 30 mmol/L of sodium in 500 ml of water, a concentration that scientific studies have repeatedly shown to be more effective than plain water for rehydration. Since then, the formula has remained almost unchanged, because it works. Four electrolytes in each tablet: sodium, potassium, calcium and magnesium. Not one, not two.
Three B vitamins, a modest but concrete addition
Vitamins B1, B2 and B6 are not the main players in this product, but they are included. Vitamins B1 and B2 contribute to the conversion of carbohydrates into energy. Vitamin B6 plays a role in protein metabolism. The quantities are modest: 0.2 mg of B1, 0.3 mg of B2 and 0.4 mg of B6 per tablet, which is 18%, 21% and 29% respectively of the daily reference intake. No exaggerated promises. Simply a useful supplement in a product you drink anyway.
Who is this product for?
For athletes who want to stay hydrated during shorter workouts without absorbing carbohydrates or sugars. Or for people who drink more than usual in hot weather and want to supplement their electrolytes. The tablet dissolves in 500 ml of water, contains almost no calories and is suitable for vegans. Each batch is tested by Informed Sport for banned substances from the WADA list, so competitive athletes can use it without fear.
The red fruits variant is a good choice for those who are looking for a little less freshness than citrus flavours while still wanting a light and recognisable fruity flavour. The elderberry powder gives the product a slightly more robust and darker fruity character.