truefuels Mint electrolyte sachet and box

truefuels electrolyte hydration for endurance training

truefuels Watermelon electrolyte sachet and box

truefuels Electrolytes – 400mg Sodium Drink Mix

Flavour

Pack size

Price

£1.25

Save £-1.25

400mg sodium, 150mg potassium and 25mg magnesium per sachet

0 kcal and 0g sugar in Mint or Watermelon

Mix one sachet into 500ml water; singles and 20-serving boxes

Quantity

In stock, ready to ship
Backordered, shipping soon

Free Royal Mail Tracked 48 from £35

Description

Electrolytes without extra carbohydrate: 400mg sodium, 150mg potassium and 25mg magnesium per sachet.

truefuels Electrolytes is a low-calorie hydration mix for runners, cyclists and triathletes who want to adjust fluid and minerals separately from fuel. It mixes into 500ml of water and comes in Mint and Watermelon, giving you a cleaner way to add sodium without automatically adding another gel or carbohydrate drink.

What is in one serving?

Sodium	400mg
Potassium	150mg
Magnesium	25mg
Salt	1g
Energy	0kcal
Carbohydrate	1g

Why Ready Sweat Go rates it

The useful bit is control. On a cool day you may get enough sodium from food and gels; in hotter conditions or with a higher sweat rate you may need more. Because this sachet adds electrolytes with virtually no carbohydrate, it can sit alongside gels, chews or a separate drink mix without pushing your carb total somewhere you did not intend.

How to use

Mix one sachet with 500ml water and follow the current sachet directions. Timing and total intake depend on how much you drink, how long you are active, the weather and your individual sweat losses. Begin with a conservative training-tested plan and avoid copying another athlete's sodium strategy blindly.

Ingredients

Pink Himalayan salt (1g), potassium citrate (391mg), magnesium citrate (210mg), coconut water powder (1g), anti-caking agent (silicon dioxide), citric acid, natural flavour (Mint or Watermelon) and sweetener (steviol glycosides from stevia).

truefuels states that the product is vegan and gluten free. It also labels Electrolytes as Informed Sport certified, but the independent Informed Sport truefuels directory did not show a separate Electrolytes entry when checked. Tested athletes should verify the exact product and batch before use.

Choose your format

Single sachet: test a flavour or add one precise serving to a race pack.
Pack of 5: a compact training block or event-week supply.
Pack of 10: the full supplier-box format for regular training and event preparation.

Mint and Watermelon are available in all three quantities. Use it alongside energy gels, compare our energy and hydration drinks, or explore the wider endurance range.

Electrolyte requirements are individual. If you have a medical condition, take medication, have been advised to limit sodium or are unsure about fluid intake, seek qualified medical or sports-dietetic guidance.

Shipping information

UK delivery

Royal Mail Tracked 48 is £3.89 for orders under £35 and free from £35.

Royal Mail Tracked 24 is £5.79 below £35, £4.49 from £35 to £54.99, and £3.49 from £55.

Delivery options and final charges are confirmed at checkout.

Pairs well with

truefuels Electrolytes – 400mg Sodium Drink Mix

from £1.25

Electrolytes without turning every bottle into fuel.

One sachet adds 400mg sodium, 150mg potassium and 25mg magnesium to 500ml water, with no sugar and no meaningful carbohydrate load.

That separation is useful when you want to adjust hydration without accidentally pushing carbohydrate above the plan. Choose Mint or Watermelon, then use more water if you prefer a lighter flavour.

Nutrition, ingredients and use

What one sachet adds

A sugar-free electrolyte serving designed to sit alongside, rather than replace, your carbohydrate plan.

1 sachet mixed with 500ml waterofficial serving

400mg sodium per sachetprimary metric

Single sachet, pack of 5 or pack of 10 in Mint and WatermelonRSG pack formats

Typical values per official serving
Typical value	Per sachet
Energy	0kJ / 0kcal
Carbohydrate	1g
of which sugars	0g
Salt	1g
Sodium	400mg
Potassium	150mg
Magnesium	25mg

Best for

Adjusting fluid and electrolyte intake separately from carbohydrate during training, events and recovery.

Activity fit

Running
Cycling
Triathlon
Endurance training
Hot-weather exercise

Nutrition and active quantities

Per serving: 0kJ / 0kcal, 1g carbohydrate, 0g sugars, 1g salt, 400mg sodium, 150mg potassium and 25mg magnesium.

Ingredients

Dietary suitability and allergens

Vegan — manufacturer stated
Gluten free — manufacturer stated

The official product page states vegan and gluten free. A complete regulated allergen declaration was not independently verified in this audit; check the current sachet before use if an allergy or intolerance applies.

Preparation and directions

Mix one sachet with 500ml water and follow the current sachet directions. Adjust total intake to the session, conditions and individual response; this product supplies electrolytes, not meaningful carbohydrate fuel.

Training and event use

Training: Test flavour, bottle concentration, fluid volume and total sodium during representative sessions. Keep carbohydrate fuelling as a separate, deliberate decision.

Event use: Use only within a training-tested hydration plan. Total fluid and sodium should reflect conditions, duration and individual sweat evidence rather than another athlete’s routine.

Certification and testing

truefuels labels Electrolytes as Informed Sport certified on its product page. The independent Informed Sport truefuels directory did not show a separate Electrolytes product entry when checked, so RSG has not treated the claim as independently confirmed. Tested athletes must verify the exact product and batch before use.

Cautions and individual suitability

Fluid and electrolyte needs are individual. Seek qualified guidance if you have a medical condition, take medication, have been advised to limit sodium, or are unsure about fluid intake.

Source: official manufacturer product page, checked 26 August 2026. Always check the current pack before use.

Hydration is one part of the plan.

Electrolytes replace minerals; they do not provide the carbohydrate needed to fuel longer or harder endurance work.

Pair your bottle with a tested gel, drink mix or food strategy, and adjust both fluid and sodium to the conditions and your own sweat rate.

Explore Energy & Hydration Drinks

truefuels Electrolytes FAQs

What is in one truefuels Electrolyte sachet?

Each sachet provides 400mg sodium, 150mg potassium and 25mg magnesium. It contains 0g sugar and is designed to add electrolytes without adding a significant carbohydrate load.

How much water should I use?

truefuels recommends mixing one sachet with 500ml water. Use more water if you prefer a lighter flavour, while keeping your total fluid intake appropriate for the conditions and your needs.

Are these an energy drink?

No. The sachets support hydration but do not provide useful fuelling carbohydrate. For longer or harder sessions, plan carbohydrate separately through gels, drink mix or food.

Which flavours are available?

Ready Sweat Go is preparing Mint and Watermelon as singles and 20-serving boxes, plus a mixed 20-serving option for variety.

How many sachets should I use?

There is no universal number. Consider temperature, duration, fluid intake, your sweat rate and the sodium you already receive from gels, drinks and food. Test the complete strategy in training.

Who should seek advice before using electrolytes?

Speak to an appropriate healthcare professional if you have a medical condition, take medication, are pregnant or breastfeeding, or have been advised to limit sodium, potassium or magnesium.