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Higher NatureMinerals

True Food® Atlantic Marine Magnesium, 30 capsules

£9.95 for 30 capsules at Higher Nature. That works out at 11p per 100 mg magnesium, which ranks it 35th of the 79 magnesium blends and other forms we price across 15 UK retailers.

What it really costs, per 100 mg magnesium11pOne 100 mg dose is our comparison unit for magnesium. It is not a recommendation.

A day11p

A week77p

A month£3.32

A year£40.35

At one 100 mg dose 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

Servings: 30 ÷ 1 per serving = 30
In the pack: 30 × 300 mg = 9 g
£9.95 ÷ 9 g × 100 mg = 11.1p per 100 mg magnesium
A week 11.1p × 7 = 77p · a month × 30 = £3.32 · a year × 365 = £40.35
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 blends and other forms

All 79, ranked →

Magnesium Triple ComplexSimply Supplements · 384 mg a serving · £1.69 a month · a pack lasts 8 months6p£12.99View at Simply Supplements

Magnesium Glycinate X3 90 Brand NewProtein Works · 384 mg a serving · £2.43 a month · a pack lasts 6 months8p£13.99View at Protein Works

Higher NatureTrue Food® Atlantic Marine MagnesiumHigher Nature · 300 mg a serving · £2.55 a month · a pack lasts 9 months9p£22.95View at Higher Nature

Ultra Magnesium 3-in-1 ComplexVitabiotics · 375 mg a serving · £2.65 a month · a pack lasts 4 months9p£9.95View at Vitabiotics

Triple Magnesium ComplexHealf · 500 mg a serving · £2.70 a month · a pack lasts 7 months9p£20.25View at Healf

Higher NatureThis productHigher Nature · 300 mg a serving · £3.32 a month · a pack lasts 3 months11pshown above

Switching to the Simply Supplements pack saves £1.63 a month at the same 100 mg dose.

Ranked purely by price per 100 mg magnesium. 236 combination products also contain magnesium.

Pack sizes

Pack	Price	Per dose	A year
90 capsules	£22.95	9p	£31.03
30 capsulesthis pack	£9.95	11p	£40.35

At one 100 mg dose a day, the 90 capsules pack costs £9.33 less a year than this one.

On the label

Magnesium · Blends and other forms: 300 mg per serving (stated on the label)
Pack: 30 capsules · 30 servings · 1 capsule(s) a serving
Cost per serving: 33p (30 servings in the pack)

More label details

Sold by: Higher Nature
What the listing says: “30 Capsules” · “One capsule typically provides” · “Magnesium (from filtered seawater) ; 300mg”

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Daily dosemgFordays

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: £9.95Higher Nature
First recorded: £9.959 Oct
Checked on: 1 daysince 9 Oct

Checked once so far, on 9 October 2026.

9 OctFirst checked at Higher Nature: £9.95

Questions about this product

How much does Higher Nature True Food® Atlantic Marine Magnesium cost per 100 mg magnesium?

11p per 100 mg magnesium, from £9.95 for 30 capsules at Higher Nature, checked on 9 October 2026.

Is it the cheapest of the magnesium blends and other forms in the UK?

No, it is 35th of 79. Magnesium 500mg at ZipVit works out at 1p per 100 mg magnesium.

How long does one pack last?

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

About Higher Nature

All 81 Higher Nature products, priced per dose

Keep comparing

All magnesiumEvery form, cheapest per 100 mg magnesium first Magnesium blends and other forms79 products ranked, from 1p Magnesium guideWhat it is, why people take it, how the forms differ Higher NatureAll 81 products from this brand, per dose MineralsEverything else we price in this category Magnesium price historyEvery magnesium product's price per dose and price history Build a basketThe cheapest way to buy several at once How we compareWhere every number on this page comes from