Homemade Electrolyte Ice Lollies for Summer Training

Why This Recipe Works for Athletes

Homemade electrolyte ice lollies are one of the best recovery and pre-cooling tools for athletes training and racing in summer heat. They replace the sodium, potassium, and magnesium lost through sweat while providing fast carbohydrate — all in a format that cools your core temperature and is far easier to eat when appetite is suppressed after a hot run or ride. Make a batch on Sunday and use throughout the week on hot training days.

Ingredients

500ml coconut water (natural source of potassium)
250ml fresh watermelon juice or blended watermelon (approximately 300g watermelon)
Juice of 1 lime
1 tablespoon honey or maple syrup
Quarter teaspoon fine sea salt (provides sodium)
Pinch of magnesium citrate powder (optional — supports muscle recovery)

Instructions

Blend 300g of seedless watermelon until smooth. Strain through a fine sieve to remove pulp if you prefer a clearer lolly.
Combine watermelon juice, coconut water, lime juice, honey, salt, and magnesium powder (if using) in a jug. Stir well until honey dissolves fully.
Taste: the mixture should be lightly sweet with a detectable saltiness. Add an extra pinch of salt if needed — the salt is an important functional ingredient, not just flavour.
Pour into ice lolly moulds (makes approximately 6 to 8 standard lollies) and insert sticks.
Freeze for a minimum of 4 hours, ideally overnight. Run warm water over the mould for 10 seconds to release.

Nutrition Notes

Per lolly (based on 6 lollies per batch): approximately 45 to 55 calories, 11 to 13g carbohydrate, 120mg sodium, 280mg potassium. Consume 1 to 2 lollies within 20 minutes of finishing a hot training session as part of your recovery routine. They can also be used as pre-cooling before a race in warm conditions — eat 1 to 2 lollies in the 15 minutes before your race start to help lower core temperature. Store for up to 4 weeks in the freezer.

Prep time: 15 minutes + 4 hours freezing | Servings: 6 to 8 lollies