Content: 60 Softgels (€0.30* / 1 Softgels)
Content: 120 Softgels (€0.17* / 1 Softgels)
Vitamin K2 supplements are designed for shoppers looking to add a specific form of vitamin K to their daily nutrition routine. Vitamin K is a fat-soluble vitamin involved in normal blood clotting and bone metabolism, while vitamin K2 refers to a group of menaquinone compounds rather than one single ingredient. This category is particularly relevant for people comparing targeted vitamin support, combination formulas and different supplement formats. At ImmuneLabs.ie, the Vitamin K2 range gives you a focused place to compare the form, strength, ingredients and directions shown on each product label before choosing the option that best fits your routine.
Understanding vitamin K2
Vitamin K1, also known as phylloquinone, is found mainly in green leafy vegetables. Vitamin K2 covers several menaquinones, including MK-4 and MK-7. These forms differ in their chemical structure, food sources and how long they remain available in the body. MK-4 is associated with certain animal-derived foods, while MK-7 is commonly linked with fermented foods such as natto. When comparing products, check the exact form listed rather than treating all vitamin K supplements as interchangeable.
Choosing between MK-4 and MK-7
MK-4 and MK-7 are the forms most often seen in vitamin K2 supplements. MK-7 has been studied for its relatively longer half-life, whereas MK-4 has different properties and is handled differently by the body. There is no need to assume that one form is automatically suitable for everyone. Consider the ingredient form, amount per serving, serving instructions and whether the product is intended to be taken on its own or alongside other nutrients.
- MK-4: a menaquinone form of vitamin K2 with a shorter half-life.
- MK-7: a menaquinone form commonly associated with fermented foods and longer persistence in the body.
- Combined formulas: some products pair vitamin K2 with nutrients such as vitamin D, so compare the complete label rather than focusing on K2 alone.
What to compare on the label
Vitamin K2 may be available in different formats, including capsules, tablets or liquid products, depending on the individual listing. A capsule or tablet may suit shoppers who prefer a straightforward daily supplement, while a liquid format can offer an alternative for those who do not like swallowing tablets. Always review the stated serving size, the amount of vitamin K2, the specific menaquinone form and any additional vitamins or minerals. If a product combines K2 with vitamin D or another fat-soluble nutrient, check your wider supplement routine to avoid unnecessary duplication.
Practical considerations before buying
Vitamin K is naturally present in foods including leafy green vegetables, some oils, eggs, cheese, meat and fermented foods. Supplements are not a replacement for a varied diet, and more is not necessarily better. Vitamin K can interact with anticoagulant medicines such as warfarin. If you take warfarin or another prescribed medicine affected by vitamin K, speak with your GP or pharmacist before starting, stopping or changing a vitamin K2 supplement. Follow the directions on the individual product page and packaging rather than applying a general dosing rule.
Frequently asked question
Is vitamin K2 the same as vitamin K1?
No. Both belong to the vitamin K family, but vitamin K1 is phylloquinone and vitamin K2 refers to menaquinones such as MK-4 and MK-7. Check the label carefully to confirm which form a product contains.
Explore the Vitamin K2 range at ImmuneLabs.ie to compare the available forms and find a product that fits your personal nutrition routine.