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Best Electrolyte tabs by Potassium

Electrolyte tabs ranked by potassium per tab, the third mineral on the label and the one least likely to decide your race.

Potassium is a real component of sweat loss, but it is small next to sodium, and tabs carry less of it than powders: about 118 mg per serving on average against roughly 188 mg for powders. Treat this ranking as a tie-breaker between tabs whose sodium already fits your plan, not as the primary axis.

The primary axis is sodium, and after that the hydration-only versus hydration-plus-fuel decision that actually separates tabs from powders. If potassium is the number you care most about, you are probably shopping the wrong format.

The full argument, with references: Electrolyte tabs vs powders, how to choose

The top 10

Read potassium last: match sodium to your losses first, then use this column to choose between otherwise equal tabs.

1
Science in Sport
No. 1: SiS Hydro Tablets +Sodium
unknown · effervescent tablet
- Vegan
- Gluten-free
300 mgPotassium
350 mgSodium
56 mgMagnesium
€0.67Price
High 5
No. 2: ZERO+ Multivitamins
unknown · liquid
300 mgPotassium
300 mgSodium
150 mgMagnesium
-Price
3
High 5
No. 3: HIGH5 ZERO Electrolyte Tablets
unknown · tablet
- Gluten-free
250 mgPotassium
250 mgSodium
56.25 mgMagnesium
€0.62Price
High 5
No. 4: ZERO Protect
unknown · liquid
240 mgPotassium
240 mgSodium
50 mgMagnesium
€0.40Price
5
High 5
No. 5: ZERO Electrolyte Tablets +Sodium
unknown
- Gluten-free
200 mgPotassium
300 mgSodium
45 mgMagnesium
-Price
6
High 5
No. 6: ZERO Triple Pack Caffeine
glucose_only · tablet
- Gluten-free
200 mgPotassium
750 mgSodium
25 mgMagnesium
€2.44Price
High 5
No. 7: ZERO (Batch Tested)
glucose_only · tablet
195 mgPotassium
250 mgSodium
12.5 mgMagnesium
€0.40Price
8
High 5
No. 8: ZERO Twin Pack - Multi-flavour +Sodium
glucose_only · jelly
- Gluten-free
195 mgPotassium
575 mgSodium
46 mgMagnesium
€0.75Price
9
ProAction
No. 9: Sali Minerali Effervescenti +Sodium
glucose_fructose · jelly
- Gluten-free
192 mgPotassium
680 mgSodium
68 mgMagnesium
€0.99Price
10
High 5
No. 10: HIGH5 ZERO Nutrition Pack
unknown · tablet
- Gluten-free
150 mgPotassium
250 mgSodium
56.25 mgMagnesium
€0.62Price