Nutrition Geeks

Vitamin D3 4000iu + K2

Name: Vitamin D3 4000iu + K2
Brand: Nutrition Geeks

Zero ££

A year of vitamin D for a tenner, with the K2 that ought to come with it.

365 micro tablets, one a day. 4000iu of D3 with 100mcg of vitamin K2 as MK-7. Third-party tested.

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Why we recommend it

Between October and March the UK sits too far north for anyone to make vitamin D from sunlight, which is why the NHS suggests a supplement over winter and why deficiency here is ordinary rather than remarkable.

The K2 is the part worth understanding. D3 increases how much calcium you absorb; K2 has a role in where that calcium ends up, which is the argument for taking the two together rather than D3 on its own.

I've tried it, I love it, so does Nico.

Liton Ali

Nothing gets on this list because a brand asked. We try everything ourselves. And only recommend things we'd feed to our families.

The carb bands are ours. Zero is under a gram a serving, Low under five, Medium under ten. Where a product's own marketing and its nutrition panel disagree, the panel wins and we say so on the page.

Only carbohydrates become glucose. Protein becomes amino acids and fat becomes fatty acids, which is why a fatty snack with two grams of carbohydrate does very little to your glucose and a fat-free one with twenty does rather a lot.

Nico is a general wellness app for informational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult with your healthcare provider before making any medical decisions. 18+ only.

Nutrition information here comes from the manufacturer's own labelling and can change without notice. Read the pack in front of you. If you have a food allergy, the pack is the only thing that counts.