Vitamin D3 5000 IU

Name: Vitamin D3 5000 IU
Brand: Pure Encapsulations
SKU: product-0201
Price: 15.00 GBP
Availability: InStock
Rating: 4.8 (27 reviews)

£15.00

Pure Encapsulations Vitamin D3 5000 IU delivers cholecalciferol, the same form the body produces in response to sunlight and the form most readily converted to the active hormone calcitriol.

Supports bone mineralisation via improved calcium absorption
Studied for immune system regulation and function
Corrects or addresses confirmed vitamin D deficiency
Suitable for those with chronically low sunlight exposure
Single-ingredient formula with minimal excipients

4.8 (27 reflections)

One-time purchase£15.00

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Pure EncapsulationsVitamin D3 5000 IU

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About This Product.

Pure Encapsulations Vitamin D3 5000 IU delivers cholecalciferol, the same form the body produces in response to sunlight and the form most readily converted to the active hormone calcitriol. At 5000 IU per capsule, this is a higher-potency option designed for people with confirmed or likely deficiency rather than a general maintenance dose.

Vitamin D3 is studied for its roles in calcium absorption and bone mineralisation, immune regulation, and mood. Deficiency is common in the UK, where low sunlight exposure for much of the year means many people — particularly those who are older, darker-skinned, or spend little time outdoors — run chronically low without knowing it. A serum 25(OH)D blood test is the appropriate way to establish whether supplementation at this level is warranted.

This dose is typically used under clinical guidance: to correct a documented deficiency, to maintain adequate levels in someone whose baseline tends to drop, or during winter months when dietary and sunlight sources are insufficient. It suits adults who have been advised to supplement beyond standard low-dose options.

Pure Encapsulations is a professional-grade brand with a long-standing presence in clinical practice, known for minimal excipient formulas. This SKU contains a single active ingredient — cholecalciferol — with no unnecessary additives, making it straightforward to incorporate into an existing supplement protocol.

Frequently Asked.

Do I need a blood test before taking 5000 IU daily?

It is advisable, yes. At higher potencies, vitamin D can accumulate over time since it is fat-soluble. A serum 25(OH)D test tells you where your levels actually sit, which allows a clinician to recommend an appropriate dose and duration rather than guessing.

How long before I notice a difference?

Vitamin D works gradually. If you are correcting a deficiency, meaningful improvement in levels typically takes several weeks of consistent supplementation. Symptoms like fatigue or low mood linked to deficiency may shift over a similar timeframe, though individual response varies.

Who should not take this without medical supervision?

Anyone with hypercalcaemia, granulomatous conditions such as sarcoidosis, or certain kidney disorders should seek medical advice before supplementing at this dose. Those taking medications that interact with vitamin D metabolism — including some anticonvulsants and certain diuretics — should also check with their prescriber.

Why D3 rather than D2?

Cholecalciferol (D3) is the form synthesised naturally in human skin and is generally considered more effective at raising and sustaining serum 25(OH)D levels compared to ergocalciferol (D2), making it the preferred form in most clinical contexts.

Can I take this alongside a multivitamin?

Possibly, but check the vitamin D content of your multivitamin first. Adding 5000 IU on top of a multivitamin that already contains a meaningful dose of D3 could result in a combined intake that exceeds what your blood levels require. A blood test removes the guesswork.

Customer Reflections

Overall Sentiment

4.827 reflections

1 – 6 of 27 reflections

Finally got my levels up

4 months ago

Was consistently low on D3 despite eating well and getting outside. GP suggested a higher dose and I landed on these. Six weeks later my levels are back in the normal range. Simple capsule, no weird fillers, easy to swallow. Will keep buying.

Does exactly what it says

4 months ago

Solid product. No nonsense ingredients list, which is what I wanted.

Good supplement, bottle could be bigger

5 months ago

The quality is clearly there — clean formula, capsules are easy to take. My only gripe is that you only get 60 capsules per bottle which means I'm reordering every two months. Would love a 120-count option at this price point.

5 months ago

My nutritionist recommended this brand specifically for the minimal excipients. Been taking it daily for about three months now and my follow-up blood test showed a solid improvement. Happy with it.

Perfect for winter

5 months ago

I always dip in autumn/winter and started these in October. Definitely notice a difference in energy and mood compared to last year. Can't say if it's entirely the D3 but the timing lines up.

High quality, clean formula

5 months ago

Vitamin D3 5000 IU

About This Product.

How to Take It

Frequently Asked.

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