Source Naturals Vitamin K, Supports Normal Bone Health, 100 Tablets

Key Benefits of Vitamin K1

Phylloquinone (vitamin K1) is a fat-soluble vitamin that plays a crucial role in two essential bodily functions: blood coagulation and bone metabolism. It helps maintain normal blood clotting by activating clotting factors, and contributes to the synthesis of proteins that regulate calcium in the bones, thereby supporting normal bone structure. Source Naturals Vitamin K provides a convenient way to ensure adequate intake of this vital nutrient.

What Makes Understanding Vitamin K1 Important?

Vitamin K1 is naturally abundant in green leafy vegetables such as spinach, kale, and broccoli. However, dietary intake may not always be sufficient, making supplementation a practicable option. This vegetarian-friendly supplement delivers phylloquinone in tablet form, suitable for plant-based diets.

Recommended Intake

The reference nutrient intake (RNI) for vitamin K in the UK is approximately 1 microgram (mcg) per kilogram of body weight per day. For most adults, this translates to around 70–140 mcg daily, whilst individual needs vary. Source Naturals Vitamin K provides a standard dose as indicated on the label; typical supplementation ranges from 100 to 500 mcg daily. Always follow the directions on the packaging and consult a health care professional for personalised advice.

Safety and Interactions

Vitamin K1 is generally safe at recommended doses. Rare side effects may include mild gastrointestinal discomfort. Because vitamin K influences blood coagulation, anyone taking anticoagulant medicines (e.g., warfarin) should seek medical advice before use, as sudden changes in vitamin K intake can affect medication efficacy. Pregnant or breastfeeding women should only use this supplement under the guidance of a health care provider.

Frequently Asked Questions

Is vitamin K1 the same as vitamin K2?
No. Vitamin K1 (phylloquinone) is primarily involved in blood clotting and bone health, whereas vitamin K2 (menaquinone) plays a role in cardiovascular health and bone mineralisation. Both are important but have distinct functions.

Can I take vitamin K1 with other supplements?
Yes, it is often combined with vitamin D and calcium to support bone health. However, always check for potential interactions with medications or other products.

Is this product suitable for vegetarians?
Yes, Source Naturals Vitamin K is labelled as vegetarian-friendly.

How should I store this supplement?
Keep in a cool, dry place away from direct sunlight, out of reach of children.

This product is a food supplement and should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. These statements have not been evaluated by the Medicines and Health care products Regulatory Agency (MHRA). This product is not intended to diagnose, treat, , or prevent any disease.