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NaturesPlusMinerals

Magnesium Capsules, 120 capsules

£10.66 for 120 capsules at Healf. That works out at 9p per 100 mg magnesium, which ranks it 37th of the 38 magnesium citrate products we price across 12 UK retailers.

What it really costs, per 100 mg magnesium9pOne 100 mg dose is our comparison unit for magnesium. It is not a recommendation.
A day9p
A week62p
A month£2.67
A year£32.42

At one 100 mg dose a day, this pack lasts 4 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 120 ÷ 4 per serving = 30
  • In the pack: 30 × 400 mg = 12 g
  • £10.66 ÷ 12 g × 100 mg = 8.88p per 100 mg magnesium
  • A week 8.88p × 7 = 62p · a month × 30 = £2.67 · a year × 365 = £32.42
  • 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 magnesium citrate

All 38, ranked →
Creatine & MagnesiumHealf · 100 mg a serving · £26.79 a month · a pack lasts 28 days89p£25.00View at Healf (opens in a new tab)
Creatine & MagnesiumMyprotein · 100 mg a serving · £26.79 a month · a pack lasts 28 days89p£25.00View at Myprotein (opens in a new tab)
Mindful BlendHealf · 120 mg a serving · £28.42 a month · a pack lasts 14 days95p£13.64View at Healf (opens in a new tab)
Mindful Blend Wild StrawberryHealf · 120 mg a serving · £39.54 a month · a pack lasts 14 days£1.32£18.98View at Healf (opens in a new tab)
Mindful BlendHealf · 120 mg a serving · £50.00 a month · a pack lasts 14 days£1.67£24.00View at Healf (opens in a new tab)
This productHealf · 400 mg a serving · £2.67 a month · a pack lasts 4 months9pshown above

Ranked purely by price per 100 mg magnesium. 187 combination products also contain magnesium.

On the label

Magnesium · Citrate
400 mg per serving (stated on the label)
Pack
120 capsules · 30 servings · 4 capsule(s) a serving
Cost per serving
36p (30 servings in the pack)
More label details
Sold by
Healf
What the listing says
“120 caps” · “Servings Per Container: 30” · “Serving Size: 4 Capsules” · “Magnesium (as Citrate) ; 400 mg”
Ingredients

Magnesium (as Citrate), Magnesium Citrate, Capsule Shell (Hydroxypropyl Methyl Cellulose), Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agent (Magnesium Stearate), Anti-Caking Agent (Silicon Dioxide)

From the Healf 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 1 October 2026. Checked on 1 day, most recently 1 October 2026.

Price at every check
£10.66Healf
First recorded
£10.661 Oct
Checked on
1 daysince 1 Oct

Checked once so far, on 1 October 2026.

  1. First checked at Healf: £10.66

Questions about this product

How much does NaturesPlus Magnesium Capsules cost per 100 mg magnesium?

9p per 100 mg magnesium, from £10.66 for 120 capsules at Healf, checked on 30 September 2026.

Is it the cheapest magnesium citrate in the UK?

No, it is 37th of 38. Magnesium Citrate Tablets 700mg at Simply Supplements works out at 2p per 100 mg magnesium.

How long does one pack last?

4 months at one 100 mg dose. The pack holds 12 g in total.

About NaturesPlus

All 25 NaturesPlus products, priced per dose

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