We earn commission on purchases made through our links. It never affects ranking: tables are ordered purely by price per dose, and no retailer or brand can pay for position.We earn commission when you buy through our links. It never affects the ranking. Full disclosure.

perdose
Updated

Home › Vitamins › Vitamin D3

NOW FoodsVitamins

Vitamin D-3 & K-2 1000 IU / 45 mcg, 120 capsules

£8.30 for 120 capsules at Healf. That works out at 7p per 1,000 IU, which ranks it 85th of the 207 vitamin D3 products we price across 20 UK retailers.

What it really costs, per 1,000 IU7pOne 1,000 IU dose is our comparison unit for vitamin D3. It is not a recommendation.
A day7p
A week48p
A month£2.08
A year£25.25

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

How we worked it out

Vitamin D3

  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 1,000 IU = 120,000 IU
  • £8.30 ÷ 120,000 IU × 1,000 IU = 6.92p per 1,000 IU
  • A week 6.92p × 7 = 48p · a month × 30 = £2.08 · a year × 365 = £25.25
  • Amount per serving: stated on the label.

Vitamin K2

  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 45 µg = 5.4 mg
  • £8.30 ÷ 5.4 mg × 5 mg = £7.69 per 5 mg
  • A week £7.69 × 7 = £53.80 · a month × 30 = £230.56 · a year × 365 = £2805.09
  • 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 →
Higher NatureHigh Strength Vitamin D3 2000iuHigher Nature · 2,000 IU a serving · £1.87 a month · a pack lasts 8 months6p£14.95View at Higher Nature (opens in a new tab)
Vitamin D 1000IUHealf · 1,000 IU a serving · £1.92 a month · a pack lasts 8 months6p£15.99View at Healf (opens in a new tab)
Ultra Vitamin D 1000IU 96 TabletsVitabiotics · 1,000 IU a serving · £1.92 a month · a pack lasts 3 months6p£6.15View at Vitabiotics (opens in a new tab)
Vitamin D3 1000IUHealf · 1,000 IU a serving · £2.00 a month · a pack lasts 6 months7p£11.99View at Healf (opens in a new tab)
QuestForte D 4000IUVitamin Planet · 4,000 IU a serving · £2.03 a month · a pack lasts 8 months7p£16.21View at Vitamin Planet (opens in a new tab)
This productHealf · 1,000 IU a serving · £2.08 a month · a pack lasts 4 months7pshown above

Switching to the Higher Nature pack saves 21p a month at the same 1,000 IU dose.

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

How it compares: vitamin K2 MK-4

All 4, ranked →
Vitamin K2Cheapest per 5 mgHealf · 15 mg a serving · £7.56 a month · a pack lasts 8 months25p£60.49View at Healf (opens in a new tab)
Vitamin D and K2Healf · 200 µg a serving · £29.99 a month · a pack lasts 24 days£1.00£23.99View at Healf (opens in a new tab)
Vitamin D3 + K2 DropsHealf · 50 µg a serving · £69.97 a month · a pack lasts 9 days£2.33£20.99View at Healf (opens in a new tab)
This productHealf · 45 µg a serving · £230.56 a month · a pack lasts 1 day£7.69shown above

Ranked purely by price per 5 mg. 11 combination products also contain vitamin K2.

On the label

Vitamin D3 · Vitamin D3
1,000 IU per serving (stated on the label)
Vitamin K2 · MK-4
45 µg per serving (stated on the label)
Pack
120 capsules · 120 servings · 1 capsule(s) a serving
Cost per serving
7p (120 servings in the pack)
More label details
Sold by
Healf
What the listing says
“120 caps” · “Servings Per Container: 120” · “Serving Size: 1 Capsule” · “(from Lanolin) (1,000 IU) ; 25 mcg”
Ingredients

Vitamin K2 (as Menaquinone-4) (MK-4), Vitamin D (as D3 Cholecalciferol) (from Lanolin) (1,000 IU), Rice Flour, Hypromellose (Cellulose Capsule), Antioxidant (Ascorbyl Palmitate), Anti-Caking Agent (Silicon Dioxide)

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

Is something wrong? Tell us

Add to your basket

View basket

Your 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.

Price history

12 price changes since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Lowest recorded
£8.3015 Oct
Highest recorded
£8.451 Oct
First recorded
£8.451 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Down at Healf: £8.32 → £8.30 (−0.2%)
  2. Up at Healf: £8.30 → £8.32 (+0.2%)
  3. Down at Healf: £8.31 → £8.30 (−0.1%)
10 earlier entries
  1. Down at Healf: £8.34 → £8.31 (−0.4%)
  2. Up at Healf: £8.33 → £8.34 (+0.1%)
  3. Down at Healf: £8.34 → £8.33 (−0.1%)
  4. Down at Healf: £8.36 → £8.34 (−0.2%)
  5. Up at Healf: £8.35 → £8.36 (+0.1%)
  6. Down at Healf: £8.38 → £8.35 (−0.4%)
  7. Down at Healf: £8.41 → £8.38 (−0.4%)
  8. Down at Healf: £8.42 → £8.41 (−0.1%)
  9. Down at Healf: £8.45 → £8.42 (−0.4%)
  10. First checked at Healf: £8.45

Questions about this product

How much does NOW Foods Vitamin D-3 & K-2 1000 IU / 45 mcg cost per 1,000 IU?

7p per 1,000 IU, from £8.30 for 120 capsules at Healf, checked on 20 October 2026.

Is it the cheapest vitamin D3 in the UK?

No, it is 85th of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.

How long does one pack last?

4 months at one 1,000 IU dose. The pack holds 120,000 IU in total.

How much does NOW Foods Vitamin D-3 & K-2 1000 IU / 45 mcg cost per 5 mg?

£7.69 per 5 mg, from £8.30 for 120 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

1 day at one 5 mg dose. The pack holds 5.4 mg in total.

About NOW Foods

All 109 NOW Foods products, priced per dose

More from NOW Foods

Keep comparing

All vitamin D3Every form, cheapest per 1,000 IU firstVitamin D3 guideWhat it is, why people take it, how the forms differNOW FoodsAll 109 products from this brand, per doseVitaminsEverything else we price in this categoryVitamin D3 price historyEvery vitamin D3 product's price per dose and price historyBuild a basketThe cheapest way to buy several at onceHow we compareWhere every number on this page comes from