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Algae-Sourced Calcium, 90 capsules

£36.79 for 90 capsules at Healf. 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 calcium82pOne 500 mg dose is our comparison unit for calcium. It is not a recommendation.
A day82p
A week£5.72
A month£24.53
A year£298.41

At one 500 mg dose a day, this pack lasts 45 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Calcium

  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 750 mg = 22.5 g
  • £36.79 ÷ 22.5 g × 500 mg = 81.8p per 500 mg calcium
  • A week 81.8p × 7 = £5.72 · a month × 30 = £24.53 · a year × 365 = £298.41
  • Amount per serving: stated on the label.

Boron

  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 3 mg = 90 mg
  • £36.79 ÷ 90 mg × 3 mg = £1.23 per 3 mg boron
  • A week £1.23 × 7 = £8.58 · a month × 30 = £36.79 · a year × 365 = £447.61
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 65 mg = 1.95 g
  • £36.79 ÷ 1.95 g × 100 mg = £1.89 per 100 mg magnesium
  • A week £1.89 × 7 = £13.21 · a month × 30 = £56.60 · a year × 365 = £688.63
  • Amount per serving: stated on the label.

Vitamin D3

  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 1,000 IU = 30,000 IU
  • £36.79 ÷ 30,000 IU × 1,000 IU = £1.23 per 1,000 IU
  • A week £1.23 × 7 = £8.58 · a month × 30 = £36.79 · a year × 365 = £447.61
  • 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 productHealf · 750 mg a serving · £24.53 a month · a pack lasts 45 days82pshown above

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

How it compares: boron

All 8, ranked →
NutravitaBoron 4mgCheapest per 3 mg boronNutravita · 4 mg a serving · 56p a month · a pack lasts 1.5 years2p£9.99View at Nutravita (opens in a new tab)
Boron 3mgHealf · 3 mg a serving · £1.44 a month · a pack lasts 8 months5p£11.98View at Healf (opens in a new tab)
Boron 3mgHealf · 3 mg a serving · £1.53 a month · a pack lasts 3 months5p£5.11View at Healf (opens in a new tab)
This productHealf · 3 mg a serving · £36.79 a month · a pack lasts 30 days£1.23shown above

Ranked purely by price per 3 mg boron. 33 combination products also contain boron.

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 productHealf · 65 mg a serving · £56.60 a month · a pack lasts 20 days£1.89shown above

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

How it compares: vitamin D3

All 207, ranked →
WeightWorldHigh-Strength Vitamin D3 TabletsCheapest per 1,000 IUWeightWorld · 4,000 IU a serving · 17p a month · a pack lasts 4.4 years1p£8.99View at WeightWorld (opens in a new tab)
ZipVitVitamin D3 4000iuZipVit · 4,000 IU a serving · 17p a month · a pack lasts 4 years1p£8.49View at ZipVit (opens in a new tab)
WeightWorldVitamin D3 + K2 (MK7) TabletsWeightWorld · 4,000 IU a serving · 21p a month · a pack lasts 4 years1p£9.99View at WeightWorld (opens in a new tab)
This productHealf · 1,000 IU a serving · £36.79 a month · a pack lasts 30 days£1.23shown above

Ranked purely by price per 1,000 IU. 439 combination products also contain vitamin D3.

On the label

Calcium · Other forms
750 mg per serving (stated on the label)
Boron · Boron
3 mg per serving (stated on the label)
Pack
90 capsules · 30 servings · 3 capsule(s) a serving
Cost per serving
£1.23 (30 servings in the pack)
More label details
Magnesium · Blends and other forms
65 mg per serving (stated on the label)
Vitamin D3 · Vitamin D3
1,000 IU per serving (stated on the label)
Claimed on the listing
vegan
Sold by
Healf
What the listing says
“90 Caps” · “3 capsules typically contain” · “Boron ; 3 mg”
Ingredients

Algas Calcareas (Algaecal®) Providing Calcium And Magnesium, Capsule: Hydroxypropyl Methylcellulose, Anti-Caking Agents: Tricalcium Phosphate And Magnesium Stearate, Sodium Borate, Anti-Caking Agent: Stearic Acid, Cholecalciferol.

From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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One 500 mg dose is our comparison unit, not a recommendation.

Price history

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

Lowest recorded
£36.798 Oct
Highest recorded
£45.991 Oct
First recorded
£45.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Down at Healf: £45.99 → £36.79 (−20%)
  2. First checked at Healf: £45.99

Questions about this product

How much does Metagenics Algae-Sourced Calcium cost per 3 mg boron?

£1.23 per 3 mg boron, from £36.79 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 3 mg dose. The pack holds 90 mg in total.

How much does Metagenics Algae-Sourced Calcium cost per 500 mg calcium?

82p per 500 mg calcium, from £36.79 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

45 days at one 500 mg dose. The pack holds 22.5 g in total.

How much does Metagenics Algae-Sourced Calcium cost per 100 mg magnesium?

£1.89 per 100 mg magnesium, from £36.79 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

20 days at one 100 mg dose. The pack holds 1.95 g in total.

How much does Metagenics Algae-Sourced Calcium cost per 1,000 IU?

£1.23 per 1,000 IU, from £36.79 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 1,000 IU dose. The pack holds 30,000 IU in total.

About Metagenics

All 126 Metagenics products, priced per dose

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