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Vitamin D3 4000iu, 365 tablets

£8.49 for 365 tablets at ZipVit. That works out at 1p per 1,000 IU, which ranks it 2nd of the 207 vitamin D3 products we price across 20 UK retailers.

What it really costs, per 1,000 IU1pOne 1,000 IU dose is our comparison unit for vitamin D3. It is not a recommendation.
A day1p
A week4p
A month17p
A year£2.12

At one 1,000 IU dose a day, this pack lasts 4 years. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 365 ÷ 1 per serving = 365
  • In the pack: 365 × 4,000 IU = 1,460,000 IU
  • £8.49 ÷ 1,460,000 IU × 1,000 IU = 0.582p per 1,000 IU
  • A week 0.582p × 7 = 4p · a month × 30 = 17p · a year × 365 = £2.12
  • 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 →
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)
ZipVitThis productZipVit · 4,000 IU a serving · 17p a month · a pack lasts 4 years1pshown above

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

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

On the label

Vitamin D3 · Vitamin D3
4,000 IU per serving (stated on the label)
Pack
365 tablets · 365 servings · 1 tablet(s) a serving
Cost per serving
2p (365 servings in the pack)
More label details
Sold by
ZipVit
What the listing says
“4000iu - 365” · “Take 1 tablet daily” · “Vitamin D3 ; 4000iu ; 2000%”
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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
£8.49ZipVit
First recorded
£8.499 Oct
Checked on
1 daysince 9 Oct

Checked once so far, on 9 October 2026.

  1. First checked at ZipVit: £8.49

Questions about this product

How much does ZipVit Vitamin D3 4000iu cost per 1,000 IU?

1p per 1,000 IU, from £8.49 for 365 tablets at ZipVit, checked on 9 October 2026.

Is it the cheapest vitamin D3 in the UK?

No, it is 2nd of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.

How long does one pack last?

4 years at one 1,000 IU dose. The pack holds 1,460,000 IU in total.

About ZipVit

All 157 ZipVit products, priced per dose

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