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ThorneVitamins

Vitamin D and K2, 30 ml

£23.99 for 30 ml at Healf. That works out at 4p per 1,000 IU, which ranks it 49th of the 207 vitamin D3 products we price across 20 UK retailers.

What it really costs, per 1,000 IU4pOne 1,000 IU dose is our comparison unit for vitamin D3. It is not a recommendation.
A day4p
A week28p
A month£1.20
A year£14.59

At one 1,000 IU dose a day, this pack lasts 1.6 years. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Vitamin D3

  • In the pack: 600 × 1,000 IU = 600,000 IU
  • £23.99 ÷ 600,000 IU × 1,000 IU = 4p per 1,000 IU
  • A week 4p × 7 = 28p · a month × 30 = £1.20 · a year × 365 = £14.59
  • Amount per serving: stated on the label.

Vitamin K2

  • In the pack: 600 × 200 µg = 120 mg
  • £23.99 ÷ 120 mg × 5 mg = £1.00 per 5 mg
  • A week £1.00 × 7 = £7.00 · a month × 30 = £29.99 · a year × 365 = £364.85
  • 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 vitamin D3

All 207, ranked →
Ultra Vitamin D 3000IU 96 TabletsLloyds Pharmacy · 3,000 IU a serving · £1.08 a month · a pack lasts 9 months4p£10.34View at Lloyds Pharmacy (opens in a new tab)
Super Strength Vitamin D3 240 TabletsHealthspan · 1,000 IU a serving · £1.12 a month · a pack lasts 8 months4p£8.99View at Healthspan (opens in a new tab)
Vitamin D3 CapsulesBio-Synergy · 5,000 IU a serving · £1.13 a month · a pack lasts 1.2 years4p£16.99View at Bio-Synergy (opens in a new tab)
Vitamin D3 & K2 CapsulesMyprotein · 4,000 IU a serving · £1.17 a month · a pack lasts 12 months4p£13.99View at Myprotein (opens in a new tab)
Vitamin D-3 2,000 IUHealf · 2,000 IU a serving · £1.18 a month · a pack lasts 2 months4p£2.36View at Healf (opens in a new tab)
This productHealf · 1,000 IU a serving · £1.20 a month · a pack lasts 1.6 years4pshown above

Switching to the Lloyds Pharmacy pack saves 12p a month at the same 1,000 IU dose.

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

Cheaper vitamin K2 MK-4

All 4, ranked →
Vitamin K2Cheapest per 5 mgHealf · 15 mg a serving · £7.56 a month · a pack lasts 8 months25p£60.49View at Healf (opens in a new tab)
This productHealf · 200 µg a serving · £29.99 a month · a pack lasts 24 days£1.00shown above

Switching to the Healf pack saves £22.43 a month at the same 5 mg dose.

Ranked purely by price per 5 mg. 11 combination products also contain vitamin K2.

On the label

Vitamin D3 · Vitamin D3
1,000 IU per serving (stated on the label)
Vitamin K2 · MK-4
200 µg per serving (stated on the label)
Pack
30 ml · 600 servings
Cost per serving
4p (600 servings in the pack)
More label details
Sold by
Healf
What the listing says
“30ml” · “Servings Per Container: 600” · “Vitamin D (as Vitamin D3) (1,000 IU) ; 25 mcg”
Ingredients

Vitamin K (as Vitamin K2 (Menatetrenone)), Vitamin D (as Vitamin D3) (1,000 IU), Antioxidant (Mixed Tocopherols), Medium Chain Triglyceride Oil

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

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One 1,000 IU dose is our comparison unit, not a recommendation.

Price history

No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£23.99Healf
First recorded
£23.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £23.99

Questions about this product

How much does Thorne Vitamin D and K2 cost per 1,000 IU?

4p per 1,000 IU, from £23.99 for 30 ml at Healf, checked on 20 October 2026.

Is it the cheapest vitamin D3 in the UK?

No, it is 49th of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.

How long does one pack last?

1.6 years at one 1,000 IU dose. The pack holds 600,000 IU in total.

How much does Thorne Vitamin D and K2 cost per 5 mg?

£1.00 per 5 mg, from £23.99 for 30 ml at Healf, checked on 20 October 2026.

Is it the cheapest vitamin K2 MK-4 in the UK?

No, it is 2nd of 4. Vitamin K2 at Healf works out at 25p per 5 mg.

How long does one pack last?

24 days at one 5 mg dose. The pack holds 120 mg in total.

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