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Nature's BestMinerals

OsteoGuard with Calcium and Magnesium, 180 tablets

£17.50 for 180 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 calcium10pOne 500 mg dose is our comparison unit for calcium. It is not a recommendation.
A day10p
A week68p
A month£2.92
A year£35.49

At one 500 mg dose a day, this pack lasts 6 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Calcium

  • Servings: 180 ÷ 1 per serving = 180
  • In the pack: 180 × 500 mg = 90 g
  • £17.50 ÷ 90 g × 500 mg = 9.72p per 500 mg calcium
  • A week 9.72p × 7 = 68p · a month × 30 = £2.92 · a year × 365 = £35.49
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 180 ÷ 1 per serving = 180
  • In the pack: 180 × 125 mg = 22.5 g
  • £17.50 ÷ 22.5 g × 100 mg = 7.78p per 100 mg magnesium
  • A week 7.78p × 7 = 54p · a month × 30 = £2.33 · a year × 365 = £28.39
  • 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 · £2.92 a month · a pack lasts 6 months10pshown 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 · £2.33 a month · a pack lasts 7 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
180 tablets · 180 servings · 1 tablet(s) a serving
Cost per serving
10p (180 servings in the pack)
More label details
Testing
Claimed on the label (not verified by us)
Sold by
Lamberts Healthcare (Nature's Best)
What the listing says
“Specifications: 180 Tablets” · “Each tablet provides 500mg of calcium and 125mg of magnesium”
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One 500 mg dose is our comparison unit, not a recommendation.

Price history

No price change since 21 September 2026. Checked on 27 days, most recently 20 October 2026.

Price at every check
£17.50Lamberts Healthcare (Nature's Best)
First recorded
£17.5021 Sept
Checked on
27 dayssince 21 Sept
Pack price at each check.
  1. First checked at Lamberts Healthcare (Nature's Best): £17.50

Questions about this product

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

10p per 500 mg calcium, from £17.50 for 180 tablets at Lamberts Healthcare (Nature's Best), checked on 20 October 2026.

How long does one pack last?

6 months at one 500 mg dose. The pack holds 90 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 £17.50 for 180 tablets at Lamberts Healthcare (Nature's Best), checked on 20 October 2026.

How long does one pack last?

7 months at one 100 mg dose. The pack holds 22.5 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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