Proper hydration involves more than drinking plain water: intense training sessions, hot weather and low-carbohydrate diets deplete essential minerals through perspiration. Compare sodium, potassium and magnesium ratios across sugar-free and endurance formulas below.
Compare available products
Portion prices are calculated from the net contents. Portion sizes differ between products; this is not a dosing recommendation. Read the full ingredients and directions on the product label.
Price per 1 g electrolytes = portion price ÷ declared electrolytes per portion (mg) × 1000.
 Trace Minerals
Keto Electrolyte Powder, Lemon Lime - 369 grams
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 KIKI Health
Ionic Electrolytes Liquid Concentrate - 50 ml.
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 Osavi
Collagen Electrolytes Vitality and Sport, Pineapple & Mango - 390 grams
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 Stacker2 Europe
Electrolyte Hydrate, Lemon Lime - 300 grams
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 MZ Muscle Zone
Sports Electrolytes, Blackcurrant - 180 grams
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|---|---|---|---|---|---|
| Pack size | 369 g | 50 ml | 390 g | 300 g | 180 g |
| Main ingredients | Keto electrolyte powder (potassium, magnesium, sea salt) | Ionic liquid electrolyte concentrate (chloride, potassium, magnesium) | Collagen peptides + 5 electrolytes & B-complex | Keto electrolyte powder (potassium, magnesium, sea salt) | Keto electrolyte powder (potassium, magnesium, sea salt) |
| Label portion | 6.7 g | 2 ml | 13 g | 7.5 g | 3 g |
| Total electrolytes per label portion | 1,130 mg | 296.6 mg | 1,213 mg | 1,289 mg | 1,016 mg |
| Pack price | €46.99 | €22.99 | €36.99 | €19.99 | €15.99 |
| Price per portion | €0.85 | €0.92 | €1.23 | €0.50 | €0.27 |
| Price per 1 g electrolytes | €0.76 | €3.10 | €1.02 | €0.39 | €0.26 |
| Allergen information | See the manufacturer’s full allergen statement. | See the manufacturer’s full allergen statement. | See the manufacturer’s full allergen statement. | See the manufacturer’s full allergen statement. | See the manufacturer’s full allergen statement. |
| Certifications | cGMP Certified | GMP Organic | GMP HACCP | — | — |
| Label information | Label information Nutrient amount source |
Label information Nutrient amount source |
Label information | Label information | Label information |
Authorised EU Health Claim (HC-089 • Reg. (EU) 432/2012)
“Magnesium contributes to electrolyte balance”
Conditions of use: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
A varied, balanced diet and a healthy lifestyle are important.
Prices include VAT for Ireland. Courier delivery: €6.99; free from €65.00. Estimated delivery: 2–4 working days.
Product facts checked: 2026-10-28.
What do electrolytes do in the human body?
Electrolytes are electrically charged minerals—primarily sodium, potassium, magnesium and chloride—that regulate osmotic fluid balance across cell membranes, conduct nerve impulses and enable muscular contraction. Drinking large volumes of plain water without electrolytes during prolonged sweating dilutes blood sodium levels, often causing sluggishness, brain fog or muscle cramps.
What mineral balance should you look for on the label?
- Sodium: The primary mineral lost in sweat (typically 500 to 1,500 mg per litre of perspiration). An effective hydration formula for hard training provides at least 200 to 500 mg of elemental sodium per serving.
- Potassium: Balances intracellular fluid alongside sodium and supports neuromuscular signalling. Look for potassium citrate or potassium chloride. Per the authorised EU health claim: “Potassium contributes to normal muscle function” and “Potassium contributes to the normal functioning of the nervous system”. The claim may be used only for food which is at least a source of potassium as referred to in the Annex to Regulation (EC) No 1924/2006. A varied, balanced diet and a healthy lifestyle are important. Follow the product’s daily portion and warnings; do not exceed the recommended intake.
- Magnesium: Essential for cellular energy production (ATP) and muscular relaxation. Look for bioavailable chelated bisglycinate, citrate or malate rather than poorly absorbed magnesium oxide. Per the authorised EU health claim: “Magnesium contributes to normal muscle function” and “Magnesium contributes to a reduction of tiredness and fatigue”. The claim may be used only for food which is at least a source of magnesium as referred to in the Annex to Regulation (EC) No 1924/2006. A varied, balanced diet and a healthy lifestyle are important. Follow the product’s daily portion and warnings; do not exceed the recommended intake.
Sugar-free vs carbohydrate-based electrolyte drinks
Sugar-free powders and drops: Ideal for gym workouts, strength training, sessions under 60 to 90 minutes, keto diets and intermittent fasting. They restore critical minerals without added sugars, unwanted calories, or dental enamel risks.
Carbohydrate-electrolyte blends: Contain simple carbohydrates (such as maltodextrin or dextrose) alongside minerals. These are specifically formulated for sustained endurance efforts exceeding 90 minutes (such as marathons or long-distance cycling) where muscle glycogen depletion is the primary limiting factor.
Powder tubs, effervescent tablets, or liquid drops?
- Powder tubs: The most economical format per serving, allowing you to tailor the scoop size to your sweat rate and training volume.
- Effervescent tablets: Convenient for travelling or keeping in an office desk, dissolving easily in standard water bottles.
- Liquid ionic drops: Unflavoured, pure mineral concentrates that can be added directly to water, pre-workout shakes, or intra-workout amino acids without artificial sweeteners.
The bottom line
Check the nutrition table for adequate sodium content (at least 200–500 mg per serving) and bioavailable potassium and magnesium sources. Skip sugary commercial sports drinks for standard gym sessions and choose clean, sugar-free electrolyte formulas.
Browse our Electrolytes category and check our EU supplement label checklist.
Sources used for this guide
- Commission Regulation (EU) No 432/2012 — authorised health claims on potassium and magnesium.
- EFSA NDA Panel: Scientific Opinion on carbohydrates and electrolytes — requirements for electrolyte hydration.
- Directive 2002/46/EC on food supplements — composition and labelling requirements for food supplements in the EU.