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Vitamin D3 + K2 (MK-7) Gummies

£17.99 for 90 servings at WeightWorld. That works out at 5p per 1,000 IU, which ranks it 67th of the 207 vitamin D3 products we price across 20 UK retailers.

What it really costs, per 1,000 IU5pOne 1,000 IU dose is our comparison unit for vitamin D3. It is not a recommendation.
A day5p
A week35p
A month£1.50
A year£18.24

At one 1,000 IU dose a day, this pack lasts 12 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Vitamin D3

  • In the pack: 90 × 4,000 IU = 360,000 IU
  • £17.99 ÷ 360,000 IU × 1,000 IU = 5p per 1,000 IU
  • A week 5p × 7 = 35p · a month × 30 = £1.50 · a year × 365 = £18.24
  • Amount per serving: stated on the label.

Vitamin K2

  • In the pack: 90 × 50 µg = 4.5 mg
  • £17.99 ÷ 4.5 mg × 100 µg = 40p per 100 µg
  • A week 40p × 7 = £2.80 · a month × 30 = £11.99 · a year × 365 = £145.92
  • 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 →
everyday Vitamin D 240 TabletsBoots · 400 IU a serving · £1.41 a month · a pack lasts 3 months5p£4.50View at Boots (opens in a new tab)
Vitamin D3 5000 IUHealf · 5,000 IU a serving · £1.45 a month · a pack lasts 10 months5p£14.49View at Healf (opens in a new tab)
VITAMIN D3 & K2 SprayHealf · 3,000 IU a serving · £1.45 a month · a pack lasts 10 months5p£14.50View at Healf (opens in a new tab)
Ultra Vitamin D 2000IU 96 TabletsVitabiotics · 2,000 IU a serving · £1.46 a month · a pack lasts 6 months5p£9.35View at Vitabiotics (opens in a new tab)
Vitamin D3 2500 IU with K2 120 mcgHealf · 2,500 IU a serving · £1.48 a month · a pack lasts 7 months5p£11.10View at Healf (opens in a new tab)
WeightWorldThis productWeightWorld · 4,000 IU a serving · £1.50 a month · a pack lasts 12 months5pshown above

Switching to the Boots pack saves 9p 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-7

All 68, ranked →
Vitamin D3 & K2Healf · 100 µg a serving · £9.60 a month · a pack lasts 2 months32p£19.19View at Healf (opens in a new tab)
4000IU Vitamin D3 + K2Healf · 100 µg a serving · £9.99 a month · a pack lasts 2 months33p£19.99View at Healf (opens in a new tab)
Vitamin D3 + K2 (Formerly K2-7+D3)Healf · 150 µg a serving · £10.00 a month · a pack lasts 3 months33p£29.99View at Healf (opens in a new tab)
Vitamin D3 + K2 Liquid DropsHealf · 200 µg a serving · £10.49 a month · a pack lasts 2 months35p£20.99View at Healf (opens in a new tab)
Vitamin D3 + K2 (K2Vital)Healf · 100 µg a serving · £10.98 a month · a pack lasts 2 months37p£21.95View at Healf (opens in a new tab)
WeightWorldThis productWeightWorld · 50 µg a serving · £11.99 a month · a pack lasts 45 days40pshown above

Switching to the Healf pack saves £2.40 a month at the same 100 µg dose.

Ranked purely by price per 100 µg. 52 combination products also contain vitamin K2.

On the label

Vitamin D3 · Vitamin D3
4,000 IU per serving (stated on the label)
Vitamin K2 · MK-7
50 µg per serving (stated on the label)
Pack
90 servings · 1 gummy(s) a serving
Cost per serving
20p (90 servings in the pack)
More label details
Sold by
WeightWorld
What the listing says
“Servings per Container: 90” · “Serving Size: 1 Gummy” · “Vitamin D3 (as Cholecalciferol) ; 100 mcg”
Ingredients

: Glucose Syrup, Sugar, Thickening Agent: Pectin, Acid: Citric Acid, MCT Oil, Acidity Regulator: Sodium Citrate, Natural Lemon Flavor,, Vegetable Oil (Palm), Glazing Agent (Carnauba Wax), Colour (β-Carotene) Advice Gummy should be chewed and not swallowed whole. Do not exceed the recommended daily dose. Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Discontinue use if any adverse reactions occur. Not intended for use by persons under the age of 18.

From the WeightWorld 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 9 October 2026. Checked on 1 day, most recently 9 October 2026.

Price at every check
£17.99WeightWorld
First recorded
£17.999 Oct
Checked on
1 daysince 9 Oct

Checked once so far, on 9 October 2026.

  1. First checked at WeightWorld: £17.99

Questions about this product

How much does WeightWorld Vitamin D3 + K2 (MK-7) Gummies cost per 1,000 IU?

5p per 1,000 IU, from £17.99 for 90 servings at WeightWorld, checked on 9 October 2026.

Is it the cheapest vitamin D3 in the UK?

No, it is 67th of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.

How long does one pack last?

12 months at one 1,000 IU dose. The pack holds 360,000 IU in total.

How much does WeightWorld Vitamin D3 + K2 (MK-7) Gummies cost per 100 µg?

40p per 100 µg, from £17.99 for 90 servings at WeightWorld, checked on 9 October 2026.

Is it the cheapest vitamin K2 MK-7 in the UK?

No, it is 47th of 68. Vitamin D3 2000IU + K2 (MK-7) Tablets at WeightWorld works out at 2p per 100 µg.

How long does one pack last?

45 days at one 100 µg dose. The pack holds 4.5 mg in total.

About WeightWorld

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