We Chose The Best Electrolyte For Fasting in The UK - 10/2025

Value for Money

REPOWR RAW 30's - Unflavoured and Unsweetened Electrolytes Made with Natural Desert Salt | 1000mg Sodium. 200mg Potassium. 100mg Magnesium | No Sugar. No Carbs. No Calories | Suitable for Fasting

REPOWR RAW 30's - Unflavoured and Unsweetened Electrolytes Made with Natural Desert Salt | 1000mg Sodium. 200mg Potassium. 100mg Magnesium | No Sugar. No Carbs. No Calories | Suitable for Fasting

REPOWR

Free Shipping

Why we love it

Improves energy and focus.
No sugar or calories.
Prevents muscle cramps efficiently.

Main Highlights

𝗛𝗘𝗔𝗟𝗧𝗛𝗜𝗘𝗥 𝗛𝗬𝗗𝗥𝗔𝗧𝗜𝗢𝗡: Proper hydration is not just about water. It's water plus electrolytes. Most health-conscious people don't get enough. This is especially true if you're physically active. REPOWR is scientifically formulated to give you all the electrolytes you need with none of the things you don’t. REPOWR will help you feel better, function better and perform better. It also tastes great, with 8 popular flavours to choose from. Each sachet has the right amount of sodium, potassium and magnesium, whether you’re following a healthy diet, doing intermittent fasting or exercising.
𝗛𝗢𝗪 𝗧𝗢 𝗣𝗥𝗘𝗣𝗔𝗥𝗘: Mix the powder from one sachet with 750ml water. Shake or stir well until contents dissolve. Add more water to dilute taste or use less water for a stronger taste. Add ice for an extra refreshing chill.
𝗕𝗘𝗡𝗘𝗙𝗜𝗧𝗦 𝗬𝗢𝗨 𝗖𝗔𝗡 𝗙𝗘𝗘𝗟: Both your body and brain need electrolytes. Reduction in concentration and cognitive ability is an early sign of dehydration. Drinking REPOWR will improve your mental and physical performance and your overall well-being. You can expect to feel the following benefits: improved energy and focus, less fatique, fewer headaches, reduced muscle cramps and better muscle performance.
𝗛𝗘𝗔𝗟𝗧𝗛𝗬 𝗗𝗜𝗘𝗧𝗦: REPOWR helps those eating lower carb (keto, paleo, carnivore, whole-food) to avoid fatigue and headaches. It stops annoying muscle cramps and helps to maintain energy and focus. If you feel better, you're much more likely to succeed with your healthy lifestyle.
𝗜𝗡𝗧𝗘𝗥𝗠𝗜𝗧𝗧𝗘𝗡𝗧 𝗙𝗔𝗦𝗧𝗜𝗡𝗚: REPOWR is friendly for most types of fasting, with no sugar, calories or artificial ingredients. It doesn't impact your blood sugar or insulin response, yet it helps mitigate hunger, fatigue and brain fog, allowing you to fast longer and stronger.
𝗘𝗫𝗘𝗥𝗖𝗜𝗦𝗘 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘: REPOWR is ideal for electrolyte replacement during and after physical activity, so you can keep muscles moving, maintain concentration and prevent cramps. REPOWR replenishes actual sodium lost through sweat. Proper hydration also aids recovery. Our clean, no-sugar formulation is healthier, tastes great and helps you burn more fat.
𝗖𝗔𝗥𝗘𝗙𝗨𝗟𝗟𝗬 𝗖𝗛𝗢𝗦𝗘𝗡 𝗜𝗡𝗚𝗥𝗘𝗗𝗜𝗘𝗡𝗧𝗦 𝗧𝗛𝗔𝗧 𝗪𝗢𝗥𝗞: REPOWR is, first and foremost, a health company. Our product contains no chemicals, additives or artificial ingredients. All our ingredients are chosen for quality and purity. Our formulation is backed by scientific evidence and used by doctors, health experts and top athletes.
𝗣𝗢𝗪𝗘𝗥𝗘𝗗 𝗕𝗬 𝗢𝗥𝗬𝗫 𝗗𝗘𝗦𝗘𝗥𝗧 𝗦𝗔𝗟𝗧: Through a special partnership with Oryx Desert Salt, our sodium comes from The Kalahari Desert - one of the cleanest sources in the world. Ancient and unpolluted, with no microplastics.
𝗪𝗛𝗢 𝗦𝗛𝗢𝗨𝗟𝗗 𝗡𝗢𝗧 𝗧𝗔𝗞𝗘 𝗥𝗘𝗣𝗢𝗪𝗥?: Not recommended if you have hypertension, kidney disease or take diuretic medication. Check with your healthcare professional if you have an existing medical condition or take medication. This product does not treat any medical condition or deficiency.
𝗣𝗔𝗖𝗞𝗔𝗚𝗘 𝗖𝗢𝗡𝗧𝗘𝗡𝗧𝗦: 30 x 3.2g Single Serving Sachets (30 x RAW Unflavoured.)

9.8

Exceptional

9.8

Exceptional

REPOWR

REPOWR RAW 30's - Unflavoured and Unsweetened Electrolytes Made with Natural Desert Salt | 1000mg Sodium. 200mg Potassium. 100mg Magnesium | No Sugar. No Carbs. No Calories | Suitable for Fasting

Free Shipping

Why we love it

Improves energy and focus.
No sugar or calories.
Prevents muscle cramps efficiently.

Main Highlights

𝗛𝗘𝗔𝗟𝗧𝗛𝗜𝗘𝗥 𝗛𝗬𝗗𝗥𝗔𝗧𝗜𝗢𝗡: Proper hydration is not just about water. It's water plus electrolytes. Most health-conscious people don't get enough. This is especially true if you're physically active. REPOWR is scientifically formulated to give you all the electrolytes you need with none of the things you don’t. REPOWR will help you feel better, function better and perform better. It also tastes great, with 8 popular flavours to choose from. Each sachet has the right amount of sodium, potassium and magnesium, whether you’re following a healthy diet, doing intermittent fasting or exercising.
𝗛𝗢𝗪 𝗧𝗢 𝗣𝗥𝗘𝗣𝗔𝗥𝗘: Mix the powder from one sachet with 750ml water. Shake or stir well until contents dissolve. Add more water to dilute taste or use less water for a stronger taste. Add ice for an extra refreshing chill.
𝗕𝗘𝗡𝗘𝗙𝗜𝗧𝗦 𝗬𝗢𝗨 𝗖𝗔𝗡 𝗙𝗘𝗘𝗟: Both your body and brain need electrolytes. Reduction in concentration and cognitive ability is an early sign of dehydration. Drinking REPOWR will improve your mental and physical performance and your overall well-being. You can expect to feel the following benefits: improved energy and focus, less fatique, fewer headaches, reduced muscle cramps and better muscle performance.
𝗛𝗘𝗔𝗟𝗧𝗛𝗬 𝗗𝗜𝗘𝗧𝗦: REPOWR helps those eating lower carb (keto, paleo, carnivore, whole-food) to avoid fatigue and headaches. It stops annoying muscle cramps and helps to maintain energy and focus. If you feel better, you're much more likely to succeed with your healthy lifestyle.
𝗜𝗡𝗧𝗘𝗥𝗠𝗜𝗧𝗧𝗘𝗡𝗧 𝗙𝗔𝗦𝗧𝗜𝗡𝗚: REPOWR is friendly for most types of fasting, with no sugar, calories or artificial ingredients. It doesn't impact your blood sugar or insulin response, yet it helps mitigate hunger, fatigue and brain fog, allowing you to fast longer and stronger.
𝗘𝗫𝗘𝗥𝗖𝗜𝗦𝗘 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘: REPOWR is ideal for electrolyte replacement during and after physical activity, so you can keep muscles moving, maintain concentration and prevent cramps. REPOWR replenishes actual sodium lost through sweat. Proper hydration also aids recovery. Our clean, no-sugar formulation is healthier, tastes great and helps you burn more fat.
𝗖𝗔𝗥𝗘𝗙𝗨𝗟𝗟𝗬 𝗖𝗛𝗢𝗦𝗘𝗡 𝗜𝗡𝗚𝗥𝗘𝗗𝗜𝗘𝗡𝗧𝗦 𝗧𝗛𝗔𝗧 𝗪𝗢𝗥𝗞: REPOWR is, first and foremost, a health company. Our product contains no chemicals, additives or artificial ingredients. All our ingredients are chosen for quality and purity. Our formulation is backed by scientific evidence and used by doctors, health experts and top athletes.
𝗣𝗢𝗪𝗘𝗥𝗘𝗗 𝗕𝗬 𝗢𝗥𝗬𝗫 𝗗𝗘𝗦𝗘𝗥𝗧 𝗦𝗔𝗟𝗧: Through a special partnership with Oryx Desert Salt, our sodium comes from The Kalahari Desert - one of the cleanest sources in the world. Ancient and unpolluted, with no microplastics.
𝗪𝗛𝗢 𝗦𝗛𝗢𝗨𝗟𝗗 𝗡𝗢𝗧 𝗧𝗔𝗞𝗘 𝗥𝗘𝗣𝗢𝗪𝗥?: Not recommended if you have hypertension, kidney disease or take diuretic medication. Check with your healthcare professional if you have an existing medical condition or take medication. This product does not treat any medical condition or deficiency.
𝗣𝗔𝗖𝗞𝗔𝗚𝗘 𝗖𝗢𝗡𝗧𝗘𝗡𝗧𝗦: 30 x 3.2g Single Serving Sachets (30 x RAW Unflavoured.)

We scanned 615 products

We reviewed these offers relevant to the Electrolyte For Fasting within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like SmartFast, REPOWR, Nutri-Align, Keto-Pro Fuelled by FAT, Rival Sports Fuel, Mr Run, Mineral Republic, Freak Athletics, Nutravita, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Electrolyte For Fasting in the market, we considered we took a deep dive into 3076 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is SmartFast Electrolyte Powder 420g (140 Servings) | Unflavoured, Zero Sugar, Zero Calorie | Keto & Fasting Friendly Hydration Powder with Magnesium, Potassium & Sodium. We love many things about this product by SmartFast. What sets it apart from the competition is Purest electrolyte formula available, Highly bio-available premium minerals, Effective for fasting and keto.

The best value product for most shoppers and where user satisfaction is continuously the highest is REPOWR RAW 30's - Unflavoured and Unsweetened Electrolytes Made with Natural Desert Salt | 1000mg Sodium. 200mg Potassium. 100mg Magnesium | No Sugar. No Carbs. No Calories | Suitable for Fasting by REPOWR based on online reviews by bloggers, experts and online shoppers.

The biggest bargain at the moment for Electrolyte For Fasting and the best cost-to-value ratio is Keto-Pro Keto Electrolytes 250g | Electrolyte Powder Supporting Your Fasting, Health & Fitness Goals | 50 Servings | Lemon Orange Flavourat Keto-Pro Fuelled by FAT with a 10% discount.

Our list of the best Electrolyte For Fasting is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

Best Electrolyte For Fasting of 2025

We scanned 615 products

We concluded that: