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Sports & performance

Electrolyte Tablets, 180 tablets

£7.99 for 180 tablets at Myprotein. That works out at 9p per serving, which ranks it 257th of the 260 electrolytes we price across 9 UK retailers.

What it really costs, per serving9pOne serving is our comparison unit for electrolytes. It is not a recommendation.

A day9p

A week62p

A month£2.66

A year£32.40

At one serving a day, this pack lasts 3 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Electrolytes

Servings: 180 ÷ 2 per serving = 90
In the pack: 90 × 1 serving = 90 servings
£7.99 ÷ 90 servings × 1 serving = 8.88p per serving
A week 8.88p × 7 = 62p · a month × 30 = £2.66 · a year × 365 = £32.40
Amount per serving: priced per serving — compare what each serving contains before choosing.

Calcium

Servings: 180 ÷ 2 per serving = 90
In the pack: 90 × 200 mg = 18 g
£7.99 ÷ 18 g × 500 mg = 22.2p per 500 mg calcium
A week 22.2p × 7 = £1.55 · a month × 30 = £6.66 · a year × 365 = £81.01
Amount per serving: stated on the label.

Magnesium

Servings: 180 ÷ 2 per serving = 90
In the pack: 90 × 100 mg = 9 g
£7.99 ÷ 9 g × 100 mg = 8.88p per 100 mg magnesium
A week 8.88p × 7 = 62p · a month × 30 = £2.66 · a year × 365 = £32.40
Amount per serving: stated on the label.

Potassium

Servings: 180 ÷ 2 per serving = 90
In the pack: 90 × 400 mg = 36 g
£7.99 ÷ 36 g × 200 mg = 4.44p per 200 mg potassium
A week 4.44p × 7 = 31p · a month × 30 = £1.33 · a year × 365 = £16.20
Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

Cheaper electrolytes

All 260, ranked →

Fuel - Strawberry LimeHealf · 1 serving a serving · £89.97 a month · a pack lasts 10 days£3.00£29.99View at Healf

Fuel - Cherry BerryHealf · 1 serving a serving · £89.97 a month · a pack lasts 10 days£3.00£29.99View at Healf

Fuel - Mango 10 Travel Packs - 10 travel packsHealf · 1 serving a serving · £89.97 a month · a pack lasts 10 days£3.00£29.99View at Healf

Fuel - Passion Orange Guava 10 Travel Packs - 10 travel packsHealf · 1 serving a serving · £89.97 a month · a pack lasts 10 days£3.00£29.99View at Healf

UthfulDaily Performance, Vitality & Longevity BlendHealf · 1 serving a serving · £267.00 a month · a pack lasts 10 days£8.90£89.00View at Healf

This productMyprotein · 1 serving a serving · £2.66 a month · a pack lasts 3 months9pshown above

Ranked purely by price per serving. 32 combination products also contain electrolytes.

How it compares: calcium carbonate

All 5, ranked →

Chewable Calcium + Vitamin D Vanilla 60 TabletsCheapest per 500 mg calciumBoots · 800 mg a serving · £2.50 a month · a pack lasts 48 days8p£4.00View at Boots

Chewable Calcium & Vitamin D3 TabletsSimply Supplements · 800 mg a serving · £3.12 a month · a pack lasts 3 months10p£9.99View at Simply Supplements

Ultra CalciumVitabiotics · 1 g a serving · £3.65 a month · a pack lasts 30 days12p£3.65View at Vitabiotics

This productMyprotein · 200 mg a serving · £6.66 a month · a pack lasts 36 days22pshown above

Ranked purely by price per 500 mg calcium. 86 combination products also contain calcium.

How it compares: magnesium oxide

All 9, ranked →

Magnesium 375mg 180 Tablets (3 month supply)Cheapest per 100 mg magnesiumBoots · 375 mg a serving · £1.14 a month · a pack lasts 11 months4p£12.85View at Boots

Magnesium 375mg 60 Tablets (1 Month Supply)Boots · 375 mg a serving · £1.41 a month · a pack lasts 4 months5p£5.30View at Boots

Magnesium Tablets 200mgSimply Supplements · 100 mg a serving · £1.61 a month · a pack lasts 12 months5p£19.29View at Simply Supplements

This productMyprotein · 100 mg a serving · £2.66 a month · a pack lasts 3 months9pshown above

Ranked purely by price per 100 mg magnesium. 91 combination products also contain magnesium.

How it compares: potassium chloride

Compare every product in this form →

Liquid PotassiumCheapest per 200 mg potassiumHealf · 99 mg a serving · £34.81 a month · a pack lasts 15 days£1.16£17.23View at Healf

This productMyprotein · 400 mg a serving · £1.33 a month · a pack lasts 6 months4pshown above

Ranked purely by price per 200 mg potassium. 149 combination products also contain potassium.

On the label

Electrolytes · Electrolytes (per serving): 1 serving per serving (priced per serving — compare what each serving contains before choosing)
Calcium · Carbonate: 200 mg per serving (stated on the label)
Pack: 180 tablets · 90 servings · 2 tablet(s) a serving
Cost per serving: 9p (90 servings in the pack)

More label details

Magnesium · Oxide: 100 mg per serving (stated on the label)
Potassium · Chloride: 400 mg per serving (stated on the label)
Barcode: 5055534304334
Sold by: Myprotein
What the listing says: “180Tablets” · “Servings Per Container - 90” · “Serving Size - 2 Tablets” · “Calcium ; 200 mg ; 25%”

Ingredients

Potassium Chloride, Calcium Carbonate, Sodium Chloride, Magnesium Oxide, Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agents (Silicon Dioxide, Magnesium Stearate), Glazing Agents (Hydroxypropyl Methylcellulose, Glycerine, Carnauba Wax).

From the Myprotein listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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Daily doseservingFordays

One serving is our comparison unit, not a recommendation.

Price history

No price change since 3 October 2026. Checked on 1 day, most recently 3 October 2026.

Price at every check: £7.99Myprotein
First recorded: £7.993 Oct
Checked on: 1 daysince 3 Oct

Checked once so far, on 3 October 2026.

3 OctFirst checked at Myprotein: £7.99

Questions about this product

How much does Myprotein Electrolyte Tablets cost per 500 mg calcium?

22p per 500 mg calcium, from £7.99 for 180 tablets at Myprotein, checked on 2 October 2026.

How long does one pack last?

36 days at one 500 mg dose. The pack holds 18 g in total.

How much does Myprotein Electrolyte Tablets cost per serving?

9p per serving, from £7.99 for 180 tablets at Myprotein, checked on 2 October 2026.

Is it the cheapest of the electrolytes in the UK?

No, it is 257th of 260. Electrolyte Powder at Bulk works out at 6p per serving.

How long does one pack last?

3 months at one serving. The pack holds 90 servings in total.

How much does Myprotein Electrolyte Tablets cost per 100 mg magnesium?

9p per 100 mg magnesium, from £7.99 for 180 tablets at Myprotein, checked on 2 October 2026.

How long does one pack last?

3 months at one 100 mg dose. The pack holds 9 g in total.

How much does Myprotein Electrolyte Tablets cost per 200 mg potassium?

4p per 200 mg potassium, from £7.99 for 180 tablets at Myprotein, checked on 2 October 2026.

How long does one pack last?

6 months at one 200 mg dose. The pack holds 36 g in total.

About Myprotein

Founded 2004 · Manchester, England · Part of THG plc

Myprotein is a sports nutrition brand founded in 2004 by Oliver Cookson and bought in 2011 by The Hut Group, now the London-listed THG plc. It is based in Manchester and is part of THG's nutrition division.

All 558 Myprotein products, priced per dose Visit Myprotein (opens in a new tab)