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Vitamin K1, also known as phylloquinone, plays a crucial role in blood clotting and bone health. Given its importance, selecting a high-quality supplement is essential to ensure you're getting the benefits you need. This guide will help you navigate the options and make an informed purchase.
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Heart & arterial health — Numerous studies show that vitamin K supports heart and arterial health, with higher vitamin K2 intake being correlated with a healthy cardiovascular system.
Helps maintain calcium balance — Vitamin K helps you incorporate calcium into your bones. As a part of maintaining “calcium balance”, this process helps keep calcium out of your arteries.
Vitamin K1 + two forms of K2 — It’s hard to get enough vitamin K from your diet. Super K provides vitamin K1 and two forms of bioavailable K2 to help you get enough daily vitamin K!
Ingredients matter – We use the finest raw ingredients chosen for quality and purity. The majority of our products are non-GMO, gluten-free and manufactured in the USA with globally sourced ingredients, and a Certificate of Analysis is available for...
Live your healthiest life - We believe the answers to a healthier life are within reach, and that scientific research is the key to getting us there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific...
Comprehensive Formula: Provides 3 clinically studied types of vitamin K for optimal health – vitamin K1, vitamin K2 as MK-4, and vitamin K2 as MK-7
Bone Health: Pairs with vitamin D to contribute to bone strength and density, and with magnesium to direct calcium to the bones and away from soft tissues like blood vessels*
Heart Health: Helps to maintain the health and elasticity of the arteries and supports the normal ability of the blood to clot*
Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)
Triple The Support Complex: Provides both Vitamin K1 and two forms of Vitamin K2, Vitamin K2 MK4 (Menatetrenone-4) and Vitamin K2 MK7 (Menaquinone-7).
Bone Health Support: Vitamin K Triple Play is scientifically formulated to help support strong bones.*
Superior Quality: Laboratory tested and free of GMOs and Gluten. Bronson products are in-house tested and carefully manufactured by trained professionals in our state-of-the-art facility that is located in Hauppauge, New York.
Trusted Since 1960: The pioneers of Bronson Vitamins were a group of pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients. Bronson Vitamins have been consistently mentioned by top medical...
OPTIMAL BLOOD HEALTH: Each tablet provides a 100mcg dose of Vitamin K, an essential nutrient that plays a role in the synthesis of prothrombin, which is necessary for normal blood clotting processes*
BONE AND JOINT HEALTH: Vitamin K is an excellent complement to Calcium and Vitamin D, playing a role in synthesizing a key protein in bone formation*
JOINT HEALTH: Vitamin K supports joint health.* A study found that seniors with higher Vitamin K intake had better joint health compared to those with lower intake, highlighting Vitamin K's role in maintaining joint wellness*
3-MONTH SUPPLY: Each bottle contains 100 tablets, providing a convenient and ample 100-day supply. This makes it simple to incorporate Vitamin K into your daily health routine, ensuring you stay consistent with your wellness goals
LIVE BOLDLY, AGE GRACEFULLY: For over 50 years, Puritan's Pride has provided premium-quality supplements at exceptional value. Embrace vitality and wellness at any age. With Puritan's Pride, feel your best and live boldly each day
Full Spectrum formula features plant-based ingredients without unnecessary processing
For nearly 5 years, Swanson has delivered science-backed health products worldwide. Each wellness supplement is made in our GMP certified facilities, and our purity and potency testing includes independent third-party labs
We're control freaks... in a good way! For nearly 5 years, Swanson Health has delivered science-backed health products worldwide. In 1969, we began in Fargo, ND, with a mission to offer wellness solons that help people live simply healthier together. Our...
Triple The Support Complex: Provides both Vitamin K1 and two forms of Vitamin K2, Vitamin K2 MK4 (Menatetrenone-4) and Vitamin K2 MK7 (Menaquinone-7).
Bone Health Support: Vitamin K Triple Play is scientifically formulated to help support strong bones.*
Superior Quality: Laboratory tested and free of GMOs and Gluten. Bronson products are in-house tested and carefully manufactured by trained professionals in our state-of-the-art facility that is located in Hauppauge, New York.
Trusted Since 1960: The pioneers of Bronson Vitamins were a group of pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients. Bronson Vitamins have been consistently mentioned by top medical...
FORMULATED WITH SCIENCE, CRAFTED WITH CARE: Based in Fargo, ND, our team of pharmacists, scientists, food nutritionists & quality experts ensure that every product is tested.
OUR QUALITY & HERITAGE - We're control freaks.in a good way! For nearly 5 years, Swanson Health has delivered science-backed health products worldwide. In 1969, we began in Fargo, ND with a mission to offer wellness solons that help people live simply...
Last update on 2026-09-01 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Vitamin K1 Supplements
Comparing Your Options
When comparing different Vitamin K1 supplements, pay close attention to the concentration of K1 per serving and the overall ingredient profile. Consider the reputation of the brand and any independent reviews or certifications available. Ensure the product aligns with your personal dietary needs and health goals.
Frequently Asked Questions
What is the difference between Vitamin K1 and K2?
Vitamin K1 (phylloquinone) is primarily involved in blood clotting and is found in leafy greens. Vitamin K2 (menaquinones) plays a more significant role in bone and cardiovascular health and is found in fermented foods and animal products.
Who should avoid Vitamin K1 supplements?
Individuals taking blood-thinning medications like warfarin should exercise caution and consult their doctor. Vitamin K can affect the efficacy of these drugs. Always discuss new supplements with your healthcare provider.
How much Vitamin K1 should I take daily?
The recommended daily intake of Vitamin K varies by age and sex. For adults, it's generally around 90-120 mcg. Supplement dosages can be higher, so follow product guidelines or your doctor's advice.
Can I get enough Vitamin K1 from my diet alone?
It is possible to meet your Vitamin K1 needs through diet, especially if you consume plenty of leafy green vegetables like spinach, kale, and broccoli. However, supplements can ensure consistent intake.
Are there any side effects of Vitamin K1 supplements?
Vitamin K1 is generally considered safe when taken in recommended doses. High doses are unlikely to cause adverse effects, but it's always best to stick to the suggested serving size unless advised otherwise by a healthcare professional.
How should I store my Vitamin K1 supplement?
Store your Vitamin K1 supplement in a cool, dry place away from direct sunlight. Ensure the container is tightly sealed to maintain potency and prevent degradation. Check the product packaging for specific storage instructions.
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