Vitamin D3 + K2

Name: Vitamin D3 + K2
Brand: Supplements
SKU: product-0069
Price: 60.00 GBP
Availability: InStock
Rating: 4.8 (6 reviews)

£60.00

Vitamin D3 + K2 is a combined supplement pairing the two fat-soluble vitamins most closely associated with calcium regulation and bone mineralisation.

Supports calcium absorption and bone mineralisation
D3 and K2 work together in the same metabolic pathway
May help maintain vitamin D levels through low-sunlight months
Studied for a role in immune regulation and defence
Helps direct calcium to bones rather than soft tissue

4.8 (6 reflections)

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SupplementsVitamin D3 + K2

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about this product.

Vitamin D3 + K2 is a combined supplement pairing the two fat-soluble vitamins most closely associated with calcium regulation and bone mineralisation. Vitamin D3 (cholecalciferol) is the form the body synthesises from sunlight and the one most readily converted to the active hormone calcitriol. It supports calcium absorption in the gut and is widely studied for its role in immune modulation. Vitamin K2 (typically as menaquinone-7, or MK-7) directs that calcium toward the bones and away from soft tissue, including arterial walls — making the pairing more clinically coherent than either vitamin taken alone.

This combination suits people with confirmed low vitamin D on a blood test, those who spend limited time outdoors, individuals with darker skin tones living at northern latitudes, and anyone managing bone density concerns. It also fits well as a year-round baseline for people in the UK, where sunlight is insufficient for cutaneous D3 synthesis for much of the year.

D3 and K2 are both fat-soluble, so they are best absorbed alongside a meal containing dietary fat. The formulation brings together two nutrients that work in the same physiological pathway, reducing the need for separate capsules and making daily compliance more straightforward. For anyone optimising a supplement stack based on bloodwork, this is a rational starting point.

frequently asked.

Why take D3 and K2 together rather than separately?

Vitamin D3 increases calcium absorption, while K2 activates proteins that guide calcium into bone and away from soft tissue such as arterial walls. Taking them together addresses the full pathway rather than one step in isolation.

Do I need a blood test before starting this?

It is not strictly required, but a baseline vitamin D blood test is worthwhile. It tells you whether you are deficient or insufficient, and allows you to confirm — with a follow-up test — that your levels have actually responded to the supplement.

Who may not be suitable for this supplement?

People taking anticoagulant medications such as warfarin should speak to their doctor before taking vitamin K2, as K vitamins interact with clotting pathways. Those with hypercalcaemia or certain granulomatous conditions such as sarcoidosis should also seek medical advice first.

How long before I notice a difference?

Vitamin D is slow-acting. Measurable changes in serum 25(OH)D levels typically take several weeks of consistent supplementation. Benefits related to bone density take considerably longer. Most people do not notice a subjective difference — the value is in the bloodwork.

Should I take this every day, or can I dose less frequently?

Check the dosing guidance on the packaging. Daily dosing is generally preferred for fat-soluble vitamins at maintenance levels, as it keeps circulating levels stable. Higher-dose less-frequent protocols exist but are typically used under clinical supervision.

Customer reflections

Overall sentiment

4.86 reflections

1 – 6 of 6 reflections

QQVerified Buyer

The first adrenal support that made a quick difference.

4 days ago

Gentle on a sensitive stomach, and I feel like myself again. I had tried two other glandulars before this and neither sat right.

MRVerified Buyer

Steadier mornings within a fortnight.

1 week ago

I was sceptical about glandulars, but my mid-afternoon crash has genuinely eased. One capsule with breakfast and I forget about it.

ALVerified Buyer

Subtle, but real.

2 weeks ago

Not a stimulant, which is exactly what I wanted. It took about ten days, then I realised I wasn’t dreading the afternoon any more.

SKVerified Buyer

My clinician recommended it.

3 weeks ago

Bought after a blood panel flagged a flat cortisol curve. Easy to take, no jitters, and the sourcing is refreshingly transparent.

TPVerified Buyer

Recovery feels faster.

1 month ago

Training hard through a stressful stretch and this has helped me bounce back between sessions. Already on my second bottle.

DVVerified Buyer

Does what it says.

1 month ago

No frills, one ingredient, a sensible dose. I appreciate that it is designed to be used for a season rather than forever.

Vitamin D3 + K2

about this product.

how to take it

frequently asked.

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