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VitaminsVegan

Vitamin D3 5000IU, 120 capsules

£34.99 for 120 capsules at Healf. That works out at 6p per 1,000 IU, which ranks it 75th of the 207 vitamin D3 products we price across 20 UK retailers.

What it really costs, per 1,000 IU6pOne 1,000 IU dose is our comparison unit for vitamin D3. It is not a recommendation.

A day6p

A week41p

A month£1.75

A year£21.29

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

Servings: 120 ÷ 1 per serving = 120
In the pack: 120 × 5,000 IU = 600,000 IU
£34.99 ÷ 600,000 IU × 1,000 IU = 5.83p per 1,000 IU
A week 5.83p × 7 = 41p · a month × 30 = £1.75 · a year × 365 = £21.29
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 →

Vitamin D3 + K2Healf · 5,000 IU a serving · £1.65 a month · a pack lasts 10 months5p£16.45View at Healf

Vitamin D3 1000iuLamberts Healthcare (Nature's Best) · 1,000 IU a serving · £1.66 a month · a pack lasts 6 months6p£9.95View at Lamberts Healthcare

Vegan Vitamin D3 25μg 90 tablets (3 month supply)Boots · 1,000 IU a serving · £1.67 a month · a pack lasts 3 months6p£5.00View at Boots

Vitamin D 10 µg Food Supplement, 180 TabletsBoots · 400 IU a serving · £1.67 a month · a pack lasts 2 months6p£4.00View at Boots

Ultra Vitamin D 1000IU 96 TabletsLloyds Pharmacy · 1,000 IU a serving · £1.69 a month · a pack lasts 3 months6p£5.41View at Lloyds Pharmacy

This productHealf · 5,000 IU a serving · £1.75 a month · a pack lasts 1.6 years6pshown above

Switching to the Healf pack saves 10p 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: 5,000 IU per serving (stated on the label)
Pack: 120 capsules · 120 servings · 1 capsule(s) a serving
Cost per serving: 29p (120 servings in the pack)

More label details

Claimed on the listing: vegan
Sold by: Healf
What the listing says: “120 caps” · “Vitamin D (as Cholecalciferol) ; 125 mcg”

Ingredients

Vitamin D (as Cholecalciferol), Cellulose, Modified Cellulose Gum, Anti-Caking Agent (Silicon Dioxide), Stearic Acid (Vegetable Source), Anti-Caking Agent (Magnesium Stearate (Vegetable Source))

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

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Daily doseIUFordays

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: £34.99Healf
First recorded: £34.991 Oct
Checked on: 20 dayssince 1 Oct

Pack price at each check.

1 OctFirst checked at Healf: £34.99

Questions about this product

How much does Erewhon Vitamin D3 5000IU cost per 1,000 IU?

6p per 1,000 IU, from £34.99 for 120 capsules at Healf, checked on 20 October 2026.

Is it the cheapest vitamin D3 in the UK?

No, it is 75th 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.

About Erewhon

All 15 Erewhon products, priced per dose

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