Extra Strength D3 2500 IU, 180 tablets
£8.99 for 180 tablets at Healf. That works out at 2p per 1,000 IU, which ranks it 29th of the 207 vitamin D3 products we price across 20 UK retailers.
At one 1,000 IU dose a day, this pack lasts 1.2 years. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 180 ÷ 1 per serving = 180
- In the pack: 180 × 2,500 IU = 450,000 IU
- £8.99 ÷ 450,000 IU × 1,000 IU = 2p per 1,000 IU
- A week 2p × 7 = 14p · a month × 30 = 60p · a year × 365 = £7.29
- 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 →
Switching to the Simply Supplements pack saves 4p 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
- 2,500 IU per serving (stated on the label)
- Pack
- 180 tablets · 180 servings · 1 tablet(s) a serving
- Cost per serving
- 5p (180 servings in the pack)
More label details
- Sold by
- Healf
- What the listing says
- “180 tabs” · “Servings Per Container: 180” · “Serving Size: 1 Tablet” · “Vitamin D3 (Cholecalciferol) 2500 IU ; 62.5 mcg”
Ingredients
Vitamin D3 (Cholecalciferol) 2500 IU, Bulking Agent (Microcrystalline Cellulose), Dibasic Calcium Phosphate Dihydrate, Croscarmellose Sodium, Anti-Caking Agent (Stearic Acid), Vegetable Grade Magnesium Stearate, Anti-Caking Agent (Silicon Dioxide)
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.
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Filled in from the label’s serving: 1 tablet.
What you paid
Optional. At Healf today: £8.99.
“Order by” allows 3 working days’ delivery from Healf and your spare days.
Price history
No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.
- Price at every check
- £8.99Healf
- First recorded
- £8.991 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £8.99
Questions about this product
How much does Webber Naturals and Holista Extra Strength D3 2500 IU cost per 1,000 IU?
2p per 1,000 IU, from £8.99 for 180 tablets at Healf, checked on 20 October 2026.
Is it the cheapest vitamin D3 in the UK?
No, it is 29th of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.
How long does one pack last?
1.2 years at one 1,000 IU dose. The pack holds 450,000 IU in total.
About Webber Naturals and Holista
All 19 Webber Naturals and Holista products, priced per dose
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