Ultra Vitamin D 400IU, 96 tablets
£3.95 for 96 tablets at Vitabiotics. That works out at 10p per 1,000 IU, which ranks it 111th of the 207 vitamin D3 products we price across 20 UK retailers.
At one 1,000 IU dose a day, this pack lasts 38 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 96 ÷ 1 per serving = 96
- In the pack: 96 × 400 IU = 38,400 IU
- £3.95 ÷ 38,400 IU × 1,000 IU = 10.3p per 1,000 IU
- A week 10.3p × 7 = 72p · a month × 30 = £3.09 · a year × 365 = £37.55
- 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 W-Wellness pack saves 24p 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
- 400 IU per serving (stated on the label)
- Pack
- 96 tablets · 96 servings · 1 tablet(s) a serving
- Cost per serving
- 4p (96 servings in the pack)
More label details
- Claimed on the listing
- vegetarian
- Barcode
- 5021265248223
- Sold by
- Vitabiotics
- What the listing says
- “96 tablets” · “Average per tablet” · “Vitamin D †† (as D3 400 IU) ; 10 µg ; 200”
Ingredients
Maltodextrin, Bulking Agent: Microcrystalline Cellulose, Vitamin D3 (Cholecalciferol, Antioxidant: DL-Alpha Tocopherol), Tablet Coating (Hydroxypropylmethylcellulose, Isomalt, Medium Chain Trigylcerides, Colour: Calcium Carbonate), Anti-Caking Agents: Silicon Dioxide, Stearic Acid & Magnesium Stearate. Vitamin D food supplement tablets. Always read the product directions before use. Do not exceed the recommended intake. Food supplements must not replace a varied and balanced diet and a healthy lifestyle.
From the Vitabiotics listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
Add to your basket
View basketYour basket prices everything you take together: whole packs, delivery included, from as few websites as you like.
One 1,000 IU dose is our comparison unit, not a recommendation.
Add to my stack
My stackSee when it runs out, the day to reorder by and what it costs you a day. Free, kept on this device.
Filled in from the label’s serving: 1 tablet.
What you paid
Optional. At Vitabiotics today: £3.95.
“Order by” allows 5 working days’ delivery from Vitabiotics and your spare days.
Price history
No price change since 23 September 2026. Checked on 2 days, most recently 9 October 2026.
- Price at every check
- £3.95Vitabiotics
- First recorded
- £3.9523 Sept
- Checked on
- 2 dayssince 23 Sept
- First checked at Vitabiotics: £3.95
Questions about this product
How much does Vitabiotics Ultra Vitamin D 400IU cost per 1,000 IU?
10p per 1,000 IU, from £3.95 for 96 tablets at Vitabiotics, checked on 9 October 2026.
Is it the cheapest vitamin D3 in the UK?
No, it is 111th of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.
How long does one pack last?
38 days at one 1,000 IU dose. The pack holds 38,400 IU in total.
About Vitabiotics
Founded 1971 · London, England
Vitabiotics is a British vitamins and supplements company based in London. Professor Kartar Lalvani founded it in 1971, and his son Tej Lalvani is group chief executive.
All 100 Vitabiotics products, priced per doseVisit Vitabiotics (opens in a new tab)
More from Vitabiotics
- Ultra Vitamin D 4000IU 96 Tabletsvitamin D3 · 96 tablets3p per 1,000 IUDetails and price history
- Ultra Vitamin D 3000IU 96 Tabletsvitamin D3 · 96 tablets4p per 1,000 IUDetails and price history
- Ultra Vitamin D 2000IU 96 Tabletsvitamin D3 · 96 tablets4p per 1,000 IUDetails and price history
- Ultra Vitamin D 1000IU 96 Tabletsvitamin D3 · 96 tablets6p per 1,000 IUDetails and price history
