Skip to product information
1 of 7

Mason Natural Vitamin K 100 mcg, Supports Normal Bones & Blood Clotting, 100 Tablets

Mason Natural Vitamin K 100 mcg, Supports Normal Bones & Blood Clotting, 100 Tablets

Regular price £38.94 GBP
Sale price £38.94 GBP Regular price
Save % Sold out

HOT PRODUCT | LOW STOCK

Carefully selected from trusted wellness brands

Free worldwide delivery

Secure checkout

Buy More Save More!

Mason Natural Vitamin K 100 mcg, Supports Normal Bones & Blood Clotting, 100 Tablets

Regular price £38.94
Sale price £38.94 Regular price
Save % Sold out
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Tracked worldwide delivery. Estimated arrival between - and -.

Looking to support your bone strength and maintain normal blood clotting? Mason Natural Vitamin K1 100 mcg tablets offer a convenient daily dose of phytonadione, the plant form of vitamin K. With 100 tablets per bottle, this supplement helps you meet your daily needs for this essential nutrient.

What is Vitamin K1?

Vitamin K1, also known as phylloquinone, is a fat-soluble vitamin found naturally in green leafy vegetables. It plays a key role in the body's blood clotting process and helps regulate calcium distribution to support strong bones and teeth. Unlike vitamin K2, which is produced by gut bacteria, K1 is obtained mainly from dietary sources and supplements.

Vitamin K1 vs K2: Key Differences

Vitamin K exists in two main forms: K1 (phylloquinone) and K2 (menaquinone). Both contribute to normal blood clotting and bone metabolism, but they differ in sources, absorption, and duration. Vitamin K1 is primarily found in plants and is shorter-acting, while K2 is produced by bacteria and stays active longer in the body. This supplement provides K1, which is ideal for supporting daily calcium metabolism and clotting factors. For most adults, a balanced diet plus a K1 supplement like this one helps maintain adequate levels.

Health Benefits of Vitamin K1

  • Normal Bones: Vitamin K contributes to the maintenance of normal bones by activating osteocalcin, a protein that binds calcium to the bone matrix.
  • Normal Blood Clotting: As a cofactor for clotting factors, vitamin K is essential for normal haemostasis, helping the body form clots to stop bleeding.
  • Calcium Utilisation: By aiding in the proper utilisation of calcium, K1 helps direct calcium to bones and teeth rather than soft tissues.
  • Cartilage Maintenance: Adequate K1 levels support the maintenance of cartilage and connective tissue, contributing to joint function and mobility.

Mason Natural's 100 mcg dose provides 80% of the recommended daily intake, making it a practicable addition to your wellness routine.

Recommended Dosage

For adults, the adequate intake of vitamin K1 is approximately 90–120 mcg per day. Each tablet of Mason Natural Vitamin K supplies 100 mcg, which fulfils most of the daily requirement. Take one tablet daily with a meal, preferably with a source of fat to enhance absorption. As vitamin K1 is not stored in the body for long, consistent daily supplementation helps maintain optimal levels.

Potential Side Effects & Interactions

Vitamin K1 is generally safe at recommended doses. However, individuals taking blood-thinning medications like warfarin should consult a health care professional before supplementing, as K1 can interfere with anticoagulant effects. Allergic reactions are rare but possible, especially in those with sensitivity to any ingredients. This product contains milk derivatives, so it is not suitable for those with dairy allergies. Always follow the dosage instructions and consult a professional if you have underlying health conditions.

How to Choose a Vitamin K1 Supplement

When selecting a vitamin K1 supplement, consider the dosage form, purity, and brand reputation. Mason Natural adheres to GMP (Good Manufacturing Practise) standards and has been a trusted name in supplements for over 50 years. This product is free from added starch, yeast, soy, wheat, egg, fish, crustacean shellfish, tree nuts, peanuts, and sodium. It is also sodium-free and suitable for vegetarian diets (note: contains milk). Always check labels for allergens and certifications to match your dietary needs.

Frequently Asked Questions

Can I take Vitamin K1 with other supplements? Yes, it is often combined with vitamin D and calcium for bone health synergy. However, consult a health care professional for personalised advice.

Is this supplement vegan? No, it contains milk derivatives, making it unsuitable for a vegan diet.

How long does one bottle last? With 100 tablets taken once daily, the bottle provides over three months of supply.

What is the difference between K1 and K2 in this context? This supplement provides K1, which is ideal for daily calcium metabolism and clotting support, while K2 may be preferred for longer bone and cardiovascular benefits. Both are valuable, but this product focuses on K1.

This product is a food supplement. Do not exceed the recommended daily dose. Keep out of reach of children. If you are taking anticoagulant medication, consult your doctor before taking this product. Vitamin K contributes to normal blood clotting and the maintenance of normal bones as part of a balanced diet and healthy lifestyle.

Worldwide Delivery

Orders are prepared with clear worldwide delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

UK Vitality Vitamins offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any food supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

View full details
  • Tracked worldwide delivery

    Clear delivery messaging for shoppers worldwide.

  • Secure checkout

    Secure checkout.

  • Clear returns

    Returns information is written plainly before purchase.

  • Trusted brands

    Carefully selected supplements from established wellness brands.

Supplement guide

Mason Natural Vitamin K 100 mcg, Supports Normal Bones & Blood Clotting, 100 Tablets at UK Vitality Vitamins

Looking to support your bone strength and maintain normal blood clotting? Mason Natural Vitamin K1 100 mcg tablets offer a convenient daily dose of phytonadione, the plant form of vitamin K. With 100 tablets per bottl...

Category Vitamin K1
Delivery area Worldwide
Checkout Secure checkout
Brand Mason Natural
Price £38.94
Availability In stock
100 mcgBlood ClottingBone HealthContains DairyGluten-FreeMason NaturalNon-GMOPhytonadioneSupplementsTablets

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

What UK Vitality Vitamins shows before checkout

Every product page displays price, availability, variant choices, ingredient information, directions for use, allergen details, worldwide delivery expectations and secure checkout — so you can make an informed decision quickly.

Questions about Mason Natural Vitamin K 100 mcg, Supports Normal Bones & Blood Clotting, 100 Tablets

Is Mason Natural Vitamin K 100 mcg, Supports Normal Bones & Blood Clotting, 100 Tablets available with worldwide delivery?

Yes. This product is currently available on UK Vitality Vitamins with free worldwide delivery.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to basket area. Returns guidance is available on the product page and full terms are covered in the store returns policy.

Supplement shopping with clarity

UK Vitality Vitamins product pages display ingredients, directions, allergen details and delivery information clearly — so you can compare supplements and make informed choices quickly.