Vitamin K Supplements & Tablets

Support your bones, heart and blood clotting with Welzo’s curated range of Vitamin K supplements, including Vitamin K2 and Vitamin K1 in capsule, softgel and complex formulas. Shop online for premium Vitamin K products designed to help direct calcium to your bones, maintain normal blood clotting and complement an overall healthy lifestyle.

Our Vitamin K range fits seamlessly alongside other essentials such as Vitamin D supplements, calcium supplements, magnesium and bone & joint support supplements, allowing you to build a complete routine for skeletal and cardiovascular health.

What is Vitamin K?

Vitamin K is a family of fat-soluble vitamins best known for their role in normal blood clotting and bone health. The two main forms are Vitamin K1 (phylloquinone), found primarily in green leafy vegetables, and Vitamin K2 (menaquinones), which occur in fermented foods and certain animal products. Both forms help activate proteins that regulate calcium use in the body.

By supporting the carboxylation of specific proteins, Vitamin K helps ensure that calcium is laid down in bones and teeth rather than accumulating in soft tissues. For that reason, Vitamin K is often featured in formulas aimed at bone density, cardiovascular wellbeing and long-term healthy ageing, alongside nutrients you’ll also find in our anti-ageing & longevity and cardiovascular health collections.

Benefits and Features of the Welzo Vitamin K Collection

The Welzo Vitamin K collection brings together trusted brands and evidence-informed formulations to support multiple aspects of health. Key benefits and features include:

Bone strength and density – Vitamin K works with Vitamin D and calcium to support optimal bone mineralisation and long-term skeletal health.
Heart and artery support – particularly Vitamin K2, which helps keep calcium away from artery walls and supports flexible, healthy blood vessels.
Normal blood clotting – Vitamin K contributes to the maintenance of normal blood coagulation, a key factor in everyday health.
Targeted K2 complexes – options featuring MK-7 or blends of K1, MK-4 and MK-7 for sustained support.
Synergistic formulas – products that combine Vitamin K with Vitamin D, magnesium or other micronutrients from our multivitamins and immunity supplements collections.
Trusted brands – including specialist names you’ll also find across our wider vitamins & supplements range.

Why is Vitamin K Important for Health?

Vitamin K plays a crucial role in how your body uses calcium. Adequate levels help activate proteins such as osteocalcin and matrix Gla protein, which direct calcium into bones and keep it away from arteries and soft tissues. This makes Vitamin K especially important for:

Maintaining normal bone structure – particularly in older adults or those with low dietary intake of leafy greens and fermented foods.
Supporting cardiovascular health – by helping to reduce unwanted calcification in blood vessels when combined with a balanced lifestyle.
Healthy blood clotting – crucial for wound healing and everyday resilience.

Many people choose to combine Vitamin K with nutrients from our Vitamin D and omega-3 ranges as part of a long-term heart and bone health strategy.

How to Use Vitamin K Supplements Safely

Vitamin K supplements are usually taken daily with food, as the presence of dietary fat helps absorption. Typical guidance includes:

Capsules and softgels – take once or twice per day with a meal, following the dosage instructions on the label.
Combined D3 & K2 formulas – often designed as a single daily dose to simplify your routine.
Consistency – regular, long-term use alongside a balanced diet generally provides the best results.

If you take anticoagulant medications (for example warfarin or similar), you must speak with your doctor or pharmacist before using Vitamin K supplements, as they can interact with blood-thinning medicines. For general wellness, many people pair Vitamin K with products from our joints, bones & muscles and eye health categories to support broader healthy ageing.

What Types of Vitamin K Supplements are Available?

Welzo offers a variety of Vitamin K formats to match different preferences and health goals, including:

Vitamin K1 (phylloquinone) – often used for general support of normal blood clotting and basic bone health.
Vitamin K2 (MK-7) – a long-acting form frequently chosen for cardiovascular and bone support.
Vitamin K2 (MK-4) – a shorter-acting form that is commonly used in higher doses or combination formulas.
Multi-K complexes – blends that combine K1, MK-4 and MK-7 for broad-spectrum support.
D3 & K2 combinations – convenient formulas that pair Vitamin K with Vitamin D, often bought alongside calcium supplements and magnesium.

Some products are available in vegetarian or vegan formats, making it easier to integrate Vitamin K into plant-based routines that may already include vegan & plant-based supplements.

Statistics, Research & Expert Information on Vitamin K

Scientific research continues to highlight Vitamin K’s role in long-term bone and cardiovascular health, particularly when used alongside Vitamin D and adequate calcium intake. Studies suggest that Vitamin K2 may be especially effective in activating osteocalcin and matrix Gla protein, both of which help manage where calcium is deposited in the body.

Observational and interventional data indicate that sufficient Vitamin K status is associated with healthier bone mineral density and less arterial calcification in certain groups. While more research is needed, Vitamin K is increasingly recognised as a key nutrient in comprehensive bone and heart health strategies.

To explore practical product options that combine these nutrients, read our in-depth guide Best 7 Vitamin D3 and K2 Supplements UK, which explains how D3 and K2 work together and compares leading formulas available at Welzo.

How We Select Our Vitamin K Supplements on Welzo

Our Vitamin K collection is curated by the Welzo team using strict quality and safety criteria. When choosing which products to stock, we consider:

Ingredient transparency – clear labelling of K1 vs K2, MK-4 vs MK-7 and exact microgram dosages.
Manufacturing standards – preference for brands following robust quality control and, where applicable, third-party testing.
Evidence-informed dosing – amounts aligned with current guidelines and research on Vitamin K and bone/heart health.
Synergy with other nutrients – formulas that pair well with products in our joints, bones & muscles and immunity support ranges.
User experience – easy-to-swallow capsules, practical dosing schedules and positive customer feedback.

This same approach is applied across our wider supplements & vitamins collection, so you can shop with confidence.

Trusted by Experts and Verified Vitamin K Quality on Welzo

Welzo collaborates with experienced healthcare and nutrition professionals to ensure our Vitamin K recommendations are responsible and evidence-informed. We are committed to ingredient quality, clear information and rigorous standards for every product we list.

Vitamin K Supplement Reviews

Customers frequently report that adding Vitamin K, especially K2, to their routine helps them feel more confident about supporting bones and heart health as they age. Many users also appreciate convenient combination formulas that pair Vitamin K with Vitamin D and calcium for an all-in-one approach.

To read real-life feedback and check ratings across our Vitamin K and related products, visit our dedicated Welzo reviews page.

Vitamin K FAQs

1. What is the difference between Vitamin K1 and Vitamin K2?

Vitamin K1 is primarily involved in normal blood clotting, whereas Vitamin K2 is more closely associated with directing calcium into bones and away from soft tissues. Both forms are important, but they play slightly different roles in the body.

2. Do I need both Vitamin D and Vitamin K?

Vitamin D helps you absorb calcium, while Vitamin K supports the proper use of that calcium in bones and soft tissues. Many people choose to take both together, especially in bone and heart health formulas, but you should always follow product guidance and speak with a professional if you are unsure.

3. How long does it take to feel the benefits of Vitamin K?

Vitamin K works gradually, supporting long-term bone and cardiovascular health rather than providing an immediate effect. Most people use it consistently for months as part of a wider lifestyle approach that includes a balanced diet and regular activity.

4. Can I get enough Vitamin K from food alone?

Some people can meet their Vitamin K needs from a diet rich in leafy greens and fermented foods. Others, particularly those with limited dietary variety or specific health considerations, may choose a supplement to help support optimal intake.

5. Is Vitamin K suitable for vegetarians and vegans?

Certain Vitamin K supplements are suitable for vegetarians and vegans, especially those made with plant-based capsules and non-animal-derived ingredients. Always check individual product labels for dietary suitability.

6. Are there any side effects from taking Vitamin K supplements?

Most people tolerate Vitamin K well when used at recommended doses. However, individuals taking blood-thinning medication or with specific medical conditions should only use Vitamin K supplements under medical supervision.

7. Can children take Vitamin K supplements?

Children’s Vitamin K needs are usually met through diet and, where relevant, routine medical care in early life. Any additional supplementation for children should be discussed with a GP or paediatric specialist.

8. Should I take Vitamin K at a specific time of day?

Vitamin K is fat-soluble, so it is generally best taken with a meal that contains some healthy fats. Beyond that, timing is usually flexible; choose a time that helps you remember to take your supplements consistently.