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ZMA Capsules

£16.99 for 180 servings at WeightWorld. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 100 mg magnesium4pOne 100 mg dose is our comparison unit for magnesium. It is not a recommendation.
A day4p
A week26p
A month£1.13
A year£13.78

At one 100 mg dose a day, this pack lasts 1.2 years. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Magnesium

  • In the pack: 180 × 250 mg = 45 g
  • £16.99 ÷ 45 g × 100 mg = 3.78p per 100 mg magnesium
  • A week 3.78p × 7 = 26p · a month × 30 = £1.13 · a year × 365 = £13.78
  • Amount per serving: stated on the label.

Vitamin B6

  • In the pack: 180 × 3.5 mg = 630 mg
  • £16.99 ÷ 630 mg × 50 mg = £1.35 per 50 mg
  • A week £1.35 × 7 = £9.44 · a month × 30 = £40.45 · a year × 365 = £492.17
  • Amount per serving: stated on the label.

Zinc

  • In the pack: 180 × 15 mg = 2.7 g
  • £16.99 ÷ 2.7 g × 15 mg = 9.44p per 15 mg zinc
  • A week 9.44p × 7 = 66p · a month × 30 = £2.83 · a year × 365 = £34.45
  • 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.

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 (opens in a new tab)
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 (opens in a new tab)
Magnesium Tablets 200mgSimply Supplements · 100 mg a serving · £1.61 a month · a pack lasts 12 months5p£19.29View at Simply Supplements (opens in a new tab)
WeightWorldThis productWeightWorld · 250 mg a serving · £1.13 a month · a pack lasts 1.2 years4pshown above

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

How it compares: vitamin B6 pyridoxine HCl

All 6, ranked →
ZipVitVitamin B6 50mgCheapest per 50 mgZipVit · 50 mg a serving · £1.00 a month · a pack lasts 12 months3p£11.99View at ZipVit (opens in a new tab)
Vitamin B6 Tablets 50mgSimply Supplements · 50 mg a serving · £1.11 a month · a pack lasts 12 months4p£13.29View at Simply Supplements (opens in a new tab)
Vitamin B6 100mgHealf · 100 mg a serving · £1.39 a month · a pack lasts 7 months5p£9.25View at Healf (opens in a new tab)
WeightWorldThis productWeightWorld · 3.5 mg a serving · £40.45 a month · a pack lasts 13 days£1.35shown above

Ranked purely by price per 50 mg. 280 combination products also contain vitamin B6.

How it compares: other forms of zinc

All 25, ranked →
Zinc 50mgCheapest per 15 mg zincHealf · 50 mg a serving · 84p a month · a pack lasts 10 months3p£8.44View at Healf (opens in a new tab)
Zinc Complex 360 TabletsHealthspan · 15 mg a serving · £1.08 a month · a pack lasts 12 months4p£12.99View at Healthspan (opens in a new tab)
Zinc Transporters TabletsHealf · 22 mg a serving · £1.13 a month · a pack lasts 4 months4p£4.99View at Healf (opens in a new tab)
WeightWorldThis productWeightWorld · 15 mg a serving · £2.83 a month · a pack lasts 6 months9pshown above

Ranked purely by price per 15 mg zinc. 149 combination products also contain zinc.

On the label

Magnesium · Oxide
250 mg per serving (stated on the label)
Vitamin B6 · Pyridoxine HCl
3.5 mg per serving (stated on the label)
Pack
180 servings · 1 capsule(s) a serving
Cost per serving
9p (180 servings in the pack)
More label details
Zinc · Other forms
15 mg per serving (stated on the label)
Sold by
WeightWorld
What the listing says
“Servings per Container: 180” · “Serving Size: 1 Capsules” · “Magnesium Oxide ; 250 mg ; 66”
Ingredients

: Dicalcium Phosphate., Oxidised Starch, Capsule Shell: Hypromellose (HPMC) Advice Do not exceed the recommended daily dose. Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Discontinue use and consult a doctor if any adverse reactions occur. Not intended for use by persons under the age of 18.

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

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One 100 mg dose is our comparison unit, not a recommendation.

Price history

No price change since 9 October 2026. Checked on 1 day, most recently 9 October 2026.

Price at every check
£16.99WeightWorld
First recorded
£16.999 Oct
Checked on
1 daysince 9 Oct

Checked once so far, on 9 October 2026.

  1. First checked at WeightWorld: £16.99

Questions about this product

How much does WeightWorld ZMA Capsules cost per 100 mg magnesium?

4p per 100 mg magnesium, from £16.99 for 180 servings at WeightWorld, checked on 9 October 2026.

How long does one pack last?

1.2 years at one 100 mg dose. The pack holds 45 g in total.

How much does WeightWorld ZMA Capsules cost per 50 mg?

£1.35 per 50 mg, from £16.99 for 180 servings at WeightWorld, checked on 9 October 2026.

How long does one pack last?

13 days at one 50 mg dose. The pack holds 630 mg in total.

How much does WeightWorld ZMA Capsules cost per 15 mg zinc?

9p per 15 mg zinc, from £16.99 for 180 servings at WeightWorld, checked on 9 October 2026.

How long does one pack last?

6 months at one 15 mg dose. The pack holds 2.7 g in total.

About WeightWorld

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