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Nature's BestMinerals

OsteoGuard with Calcium and Magnesium, 90 tablets

£8.50 for 90 tablets at Lamberts Healthcare (Nature's Best). 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 500 mg calcium9pOne 500 mg dose is our comparison unit for calcium. It is not a recommendation.
A day9p
A week66p
A month£2.83
A year£34.47

At one 500 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

Calcium

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 500 mg = 45 g
  • £8.50 ÷ 45 g × 500 mg = 9.44p per 500 mg calcium
  • A week 9.44p × 7 = 66p · a month × 30 = £2.83 · a year × 365 = £34.47
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 125 mg = 11.3 g
  • £8.50 ÷ 11.3 g × 100 mg = 7.56p per 100 mg magnesium
  • A week 7.56p × 7 = 53p · a month × 30 = £2.27 · a year × 365 = £27.58
  • 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: other forms of calcium

All 25, ranked →
Calcium 1000mg & Vitamin D3 400iu TabletsCheapest per 500 mg calciumSimply Supplements · 1 g a serving · 94p a month · a pack lasts 12 months3p£11.29View at Simply Supplements (opens in a new tab)
Calcium & Magnesium TabletsMyprotein · 800 mg a serving · £2.29 a month · a pack lasts 5 months8p£10.99View at Myprotein (opens in a new tab)
ZipVitCalcium 400mg with Magnesium 200mgZipVit · 400 mg a serving · £2.29 a month · a pack lasts 9 months8p£21.99View at ZipVit (opens in a new tab)
This productLamberts Healthcare (Nature's Best) · 500 mg a serving · £2.83 a month · a pack lasts 3 months9pshown above

Ranked purely by price per 500 mg calcium. 216 combination products also contain calcium.

How it compares: magnesium blends and other forms

All 79, ranked →
ZipVitMagnesium 500mgCheapest per 100 mg magnesiumZipVit · 500 mg a serving · 33p a month · a pack lasts 4.9 years1p£19.99View at ZipVit (opens in a new tab)
Magnesium Glycinate X3Protein Works · 1.81 g a serving · 40p a month · a pack lasts 2.2 years1p£10.99View at Protein Works (opens in a new tab)
Magnesium CapsHealf · 500 mg a serving · 41p a month · a pack lasts 1.4 years1p£6.75View at Healf (opens in a new tab)
This productLamberts Healthcare (Nature's Best) · 125 mg a serving · £2.27 a month · a pack lasts 4 months8pshown above

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

On the label

Calcium · Other forms
500 mg per serving (stated on the label)
Magnesium · Blends and other forms
125 mg per serving (stated on the label)
Pack
90 tablets · 90 servings · 1 tablet(s) a serving
Cost per serving
9p (90 servings in the pack)
More label details
Barcode
5055148412036
Sold by
Lamberts Healthcare (Nature's Best)
What the listing says
“Specifications: 90 Tablets” · “Our 1-2 a day tablets” · “Each tablet provides 500mg of calcium”
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One 500 mg dose is our comparison unit, not a recommendation.

Price history

1 price change since 21 September 2026. Checked on 27 days, most recently 20 October 2026.

Lowest recorded
£8.506 Oct
Highest recorded
£9.9521 Sept
First recorded
£9.9521 Sept
Checked on
27 dayssince 21 Sept
Pack price at each check.
  1. Down at Lamberts Healthcare (Nature's Best): £9.95 → £8.50 (−15%)
  2. First checked at Lamberts Healthcare (Nature's Best): £9.95

Questions about this product

How much does Nature's Best OsteoGuard with Calcium and Magnesium cost per 500 mg calcium?

9p per 500 mg calcium, from £8.50 for 90 tablets at Lamberts Healthcare (Nature's Best), checked on 20 October 2026.

How long does one pack last?

3 months at one 500 mg dose. The pack holds 45 g in total.

How much does Nature's Best OsteoGuard with Calcium and Magnesium cost per 100 mg magnesium?

8p per 100 mg magnesium, from £8.50 for 90 tablets at Lamberts Healthcare (Nature's Best), checked on 20 October 2026.

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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