Hot Weather Hydration: Why Water Alone Isn’t Enough Without Electrolytes

Saturday 19th Jul 2025 |

O.R.S® Hydration Tablets are redefining what it means to feel good, move better, and stay energised, especially when temperatures rise.

During a heatwave, your body loses essential fluids and minerals through sweat, leading to dehydration, fatigue, and decreased performance. Simply drinking water isn’t always enough. That’s where electrolytes come in, they help your body absorb water more effectively and restore the balance of sodium, potassium, and other vital minerals lost through heat exposure.

Clinically formulated and trusted by healthcare professionals, O.R.S is the only electrolyte tablet of its kind prescribed by UK doctors on the NHS, making it a standout choice in the fast-growing hydration category. Whether you’re commuting, exercising, travelling, or simply trying to stay cool, O.R.S offers a smart, science-backed solution to staying hydrated and well.

With its precise balance of electrolytes, glucose and minerals, O.R.S delivers rapid rehydration that’s backed by science, approved by global health authorities, and now embraced by everyone—from elite athletes to busy parents and wellness enthusiasts.

Whether you’re tackling a workout, bouncing back from illness, managing heat and travel, or just trying to feel your best day-to-day, O.R.S helps you hydrate faster so you can live fuller.

hot weather hydration

What Makes O.R.S Different?

  • The only electrolyte tablet prescribed by UK doctors on the NHS
  • Diverse range to cater to everyones hydration needs
  • Formulated to World Health Organization (WHO) standards for optimal hydration
  • Backed by clinical studies and used in hospitals, care settings and sports medicine
  • Rapid absorption formula using the body’s sodium-glucose co-transport system
  • Vegan, gluten-free, low-calorie and available in multiple great-tasting flavours

O.R.S EVERYDAY HYDRATION ORIGINAL ELECTROLYTES RANGE – £6.49

O.R.S Hydration Tablets are formulated to follow World Health Organisation oral rehydration solution guidelines. The mix of electrolytes combined with a low-calorie dose of glucose (17.2 kcal) is not only proven to be the fastest way to restore a healthy level of hydration, it also keeps you hydrated for longer than water alone.

The delicious electrolyte tablets create a delicious, refreshing, naturally flavoured hydration boost. Ideal for everyday on-the-go hydration, during travel, holidays, exercise, or hot weather.

hot weather hydration

Available in three irresistible flavours:

Lemon
Strawberry
Blackcurrant

O.R.S SPORTS RANGE ELECTROLYTES WITH VITAMIN D & MAGNESIUM – £7.99

Inspired by the World Health Organisation’s (WHO) oral rehydration solution, O.R.S Sport is informed sport certified and contains both a proven hydration formula and additional Magnesium and Vitamin D to reduce fatigue and support muscle function. By replacing the salts and minerals your body loses in your sweat as you exercise, O.R.S Sport allows your body to restore electrolyte balance and absorb more water, faster.

Available in two tasty flavours (Mixed Berry and Orange). This tasty solution is suitable for adults and kids, vegan friendly, gluten-free, lactose-free and no artificial preservatives.

Drop, dissolve and drink normal drinking water.
O.R.S Founder Backstory & Mission

It started as two university friends – and housemates – juggling exams and late-night study sessions on the path to becoming pharmacists. Once they made it past the stress – it was the patients they met while practising pharmacy that really made the job worthwhile. The mission was clear: create a hydration solution that actually worked and tasted great – without sugar overload or artificial flavours. After more than 50 rounds of taste testing, O.R.S Hydration Tablets were born.

The Importance of Oral Health: More Than Just a Beautiful Smile