MagAsorb (Magnesium Citrate) Powder, Citrus, 165 g
£16.70 for 165 g at Lamberts Healthcare (Nature's Best). That works out at 15p per 100 mg magnesium, which ranks it 15th of the 38 magnesium citrate products we price across 12 UK retailers.
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: 165 ÷ 5.5 per serving = 30
- In the pack: 30 × 375 mg = 11.3 g
- £16.70 ÷ 11.3 g × 100 mg = 14.8p per 100 mg magnesium
- A week 14.8p × 7 = £1.04 · a month × 30 = £4.45 · a year × 365 = £54.18
- 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 →
Switching to the W-Wellness pack saves £2.21 a month at the same 100 mg dose.
Ranked purely by price per 100 mg magnesium. 187 combination products also contain magnesium.
On the label
- Magnesium · Citrate
- 375 mg per serving (stated on the label)
- Pack
- 165 g · 30 servings · 5.5 g a serving
- Cost per serving
- 56p (30 servings in the pack)
More label details
- Claimed on the listing
- vegan, vegetarian
- Barcode
- 5055148411466
- Sold by
- Lamberts Healthcare (Nature's Best)
- What the listing says
- “Specifications: 165 Grams” · “each 5.5g scoop provides a full 375mg of magnesium” · “each 5.5g scoop provides a full 375mg of magnesium, 100% of the adult NRV”
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One 100 mg dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 5.5 g.
What you paid
Optional. At Lamberts Healthcare today: £16.70.
“Order by” allows 4 working days’ delivery from Lamberts Healthcare and your spare days.
Price history
No price change since 21 September 2026. Checked on 27 days, most recently 20 October 2026.
- Price at every check
- £16.70Lamberts Healthcare (Nature's Best)
- First recorded
- £16.7021 Sept
- Checked on
- 27 dayssince 21 Sept
- First checked at Lamberts Healthcare (Nature's Best): £16.70
Questions about this product
How much does Nature's Best MagAsorb (Magnesium Citrate) Powder cost per 100 mg magnesium?
15p per 100 mg magnesium, from £16.70 for 165 g at Lamberts Healthcare (Nature's Best), checked on 20 October 2026.
Is it the cheapest magnesium citrate in the UK?
No, it is 15th 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 11.3 g in total.
About Nature's Best
Founded 1981 · Tunbridge Wells, England · Part of Procter & Gamble
Nature's Best is a vitamins and supplements brand based in Tunbridge Wells, Kent, that has sold direct to the public since 1981. It is a trading name of Lamberts Healthcare Ltd, which also supplies practitioners and pharmacists under the Lamberts name.
All 136 Nature's Best products, priced per doseVisit Nature's Best (opens in a new tab)
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