OstroVit Vitamin D3 4000 + K2 Vegan

Name: OstroVit Vitamin D3 4000 + K2 Vegan
Brand: OstroVit
SKU: 5903933906201
Price: 7.39 GBP
Availability: InStock

Brands: OstroVit

£7.39

OstroVit Vitamin D3 4000 + K2 Vegan keeps it simple: a daily dose of vitamin D and vitamin K2, in a tablets format, 100 tablets per pack.

Why people take it

Vitamin D contributes to the normal function of the immune system
Vitamin D contributes to the maintenance of normal bones and teeth
Vitamin D contributes to normal muscle function
Vitamin D contributes to normal absorption and utilisation of calcium and phosphorus
Vitamin K contributes to the maintenance of normal bones
Vitamin K contributes to normal blood clotting

How to use

Take as directed on the pack, ideally with food and at the same time each day.

Good to know

Format: tablets
Caffeine free

A food supplement, not a substitute for a varied diet and healthy lifestyle. Do not exceed the stated dose. Keep out of reach of children.

Quantity

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Categories : Caffeine-Free Supplements, Everyday Health Supplements, OstroVit, Vegan Supplements, Vitamin D Supplements, Vitamins & Supplements

SKU: 5903933906201

At a glance

Strong

evidence for vitamin d3

Our honest take

A vegan tablet combining vitamin D3, sold as 4,000 IU (100 µg), with vitamin K2. Vegan D3 usually comes from lichen, which is useful because most D3 is made from sheep's wool. The dose sits at the UK daily limit for vitamin D, far above the 10 µg most people need in winter, so it is best kept for people advised to take a high dose. The K2 adds little for people who eat green vegetables.

You follow a vegan diet and want vitamin D3 rather than D2
You have been advised to take a high daily dose of vitamin D
You take warfarin or another blood thinner: vitamin K can interfere, so speak to your GP first
You take any other vitamin D product: this alone reaches the daily limit
You just want to follow the NHS winter advice: a lower dose is enough

The science

Vitamin D3· evidence: Strong

Vitamin D3 (cholecalciferol) is the form the skin makes from sunlight. In the UK there is not enough strong sunlight from about October to March, so many people have low levels over winter. Good-quality trials show supplements reliably raise blood levels and correct deficiency, and that matters for bone health in people who are low.

The NHS advises everyone to consider 10 µg (400 IU) a day in autumn and winter, and all year round for people who get little sun, cover their skin, have darker skin or live in care homes. For people who already have adequate levels, large trials have not shown that extra vitamin D prevents falls, fractures or other illness.

In short: a modest daily dose is sensible and cheap insurance for most UK adults in winter. Very high doses are not better and should only be taken on medical advice.

Authorised health claim
Vitamin D contributes to the normal function of the immune system. Vitamin D contributes to the maintenance of normal bones. Vitamin D contributes to the maintenance of normal muscle function. Vitamin D contributes to the maintenance of normal teeth. Vitamin D contributes to normal absorption/utilisation of calcium and phosphorus. (Applies where a daily dose gives at least 15% of the NRV, i.e. 0.75 µg.)

Typical dose: 10 µg (400 IU) a day is the NHS advice for adults and children over 1. Doses of 25 µg (1,000 IU) to 50 µg (2,000 IU) are common and safe for adults. Babies under 1 need 8.5 to 10 µg a day unless they have more than 500 ml of formula.

Safety: Do not take more than 100 µg (4,000 IU) a day without medical advice (FSA/NHS); children aged 1 to 10 should not have more than 50 µg, and babies under 1 no more than 25 µg. Long-term very high intake can raise blood calcium, which can damage the kidneys and heart. People with kidney disease, sarcoidosis or high calcium levels should speak to their GP first.

Research we looked at:
NHS. Vitamin D. nhs.uk/conditions/vitamins-and-minerals/vitamin-d
Scientific Advisory Committee on Nutrition (SACN). Vitamin D and Health. 2016.
EFSA NDA Panel. Scientific opinion on the tolerable upper intake level for vitamin D. EFSA Journal 2023;21(8):8145.
Bolland MJ, Grey A, Avenell A. Effects of vitamin D supplementation on musculoskeletal health: a systematic review, meta-analysis, and trial sequential analysis. Lancet Diabetes Endocrinol 2018;6(11):847-858.

Ingredients & nutrition

Main actives: vitamin D3 (cholecalciferol), sold as 4,000 IU (100 µg, 2,000% NRV), and vitamin K2. Sold as suitable for vegans. 100 tablets.

Please check the pack for: the amount and form of vitamin K2, the full ingredient list and the daily dose. We have not yet verified these against the label.

Always check the pack you receive, as manufacturers sometimes update recipes.

How to use

Take the daily dose shown on the pack with a meal. Do not exceed the stated daily dose. Do not combine with other vitamin D supplements, and do not take vitamin K if you are on warfarin unless your GP agrees.

Food supplements should not replace a varied, balanced diet and healthy lifestyle. General information, not medical advice. Speak to your GP or pharmacist first if you are pregnant or breastfeeding, have a medical condition or take medication.