Thorne

Vitamin D + K2

£30.00

Winter-proof immunity, mood and bone strength, with K2 to steer the calcium exactly where it belongs.

  • 1,000 IU D3 with 200mcg K2 (MK-4)
  • Supports immunity, mood & bone
  • Fat-soluble liquid drops
  • NSF Certified for Sport
1
ThorneVitamin D + K2
1

What are you hoping to improve?

Pick a goal and we’ll tell you, honestly, whether Vitamin D + K2 is the right fit, or what would suit you better.

recommended alongside

Omega-3

The single most evidence-backed supplement there is, in a clean, high-strength triglyceride oil that actually absorbs.

Magnesium Bisglycinate

The gentle, highly absorbed form of the mineral behind calm, sleep and steady energy, that most people are short on.

Creatine

The most researched supplement in sport, and increasingly in brain health, at the exact 5g dose the studies use.

Interested in more
personalised recommendations?

Set up your WA\ Profile to connect your wearables, biomarkers and test results. Create a bespoke plan based on your unique biology. Expert-led, evidence-based.

Set up Profile now

about this product.

For much of the year the sun is too weak to make the vitamin D your immune system, mood and bones rely on. Indoor days and northern latitudes make a daily top-up one of the most reliable habits you can keep, quietly holding up your defences through the darker, harder months when everything else feels like more effort.

Thorne pairs D3 with vitamin K2, and that pairing is the whole point. D3 raises how much calcium you absorb; K2 then directs that calcium into bone and away from arteries and soft tissue, so the two behave as a system rather than one working without the other. It is the difference between supplementing and supplementing properly.

This is a clean, fat-soluble formulation from a brand clinicians and professional teams both trust, made without unnecessary fillers and dosed for everyday use. The liquid drops absorb easily and take seconds, so there is nothing to talk yourself out of.

A true foundation for immune defence, steady mood and long-term bone strength, and an easy companion to omega-3 and magnesium in a complete daily base.

For much of the year the sun is too weak to make the vitamin D your immune system, mood and bones rely on. Indoor days and northern latitudes make a daily top-up one of the most reliable habits you can keep, quietly holding up your defences through the darker, harder months when everything else feels like more effort.

Vitamin D31,000 IU
Vitamin K2 (MK-4)200mcg
FormLiquid drops
Servings30

how to take it

i.

One serving daily with a meal containing fat.

ii.

Take in the morning, vitamin D can be subtly stimulating.

iii.

Consider a higher dose in winter if your levels run low.

If you feel wired or restless, take less, or take a break.
The aim is steadiness, not stimulation.

you may also like

Through the darker months

A seasonal session on immunity, mood and the handful of habits that carry you through a northern winter in good health.

See our next nutrition talk

Customer reflections

Overall sentiment

4.9168 reflections
1 – 6 of 168 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.

shop by selection

test before you supplement.

A blood test is the only way to know what your body actually needs. We’ll tell you which of these supplements is right for you.

Find your panel

more from thorne. View all