Metagenics D3 10000 + K Review

Metagenics Vitamin D3 10,000 + K Softgels offer comprehensive support for vital bodily functions, focusing on strong bones, robust heart health, and a resilient immune system. This advanced formula delivers a high-potency daily dose of vitamin D3, specifically 10,000 IU of cholecalciferol, which is recognized as the most bioavailable form of vitamin D. This ensures optimal blood levels and overall wellness. Crucially, the supplement is synergistically combined with vitamin K2, including 90 mcg of Menaquinone-7 (MK-7) and 20 mcg of phytonadione USP, to enhance the body's ability to absorb and effectively utilize calcium. This targeted combination is essential for guiding calcium to the bones where it is needed most, thereby supporting bone strength and mineralization, while simultaneously helping to maintain healthy arteries by preventing calcium deposition in soft tissues. The unique formulation of Vitamin D3 10,000 + K is designed to support multiple physiological systems. Beyond bone health, it actively promotes cardiovascular well-being and ensures year-round immune system function. Vitamin D3 plays a pivotal role in immune system regulation, supporting healthy immune cell function and contributing to an improved immune response, particularly during seasonal challenges. The inclusion of vitamin K2 is key to this multi-system support, as it works hand-in-hand with vitamin D3 to maintain proper calcium balance throughout the body. The product is delivered in easy-to-swallow softgels, optimizing bioavailability for maximum benefit. Metagenics upholds stringent quality standards, having been a leader in health supplement innovation for over four decades. The brand is trusted by more than 50,000 healthcare providers globally and is recognized as the #1 Doctor-Recommended Professional Supplement Brand. All Metagenics formulas, including Vitamin D3 10,000 + K, are produced in GMP and NSF-certified facilities, ensuring the highest quality standards. The company performs over 200,000 tests annually, from ingredient sourcing to the finished product, to guarantee accuracy and consistency. Furthermore, all products are independently verified for purity, potency, and safety through third-party testing. This formula is Non-GMO Project Verified, Gluten-Free Certified, Dairy-Free, and free from artificial colors and preservatives, reflecting a commitment to clean and responsible supplementation. As a registered B-Corp, Metagenics is dedicated to environmental responsibility, ensuring ethical and purposeful production. Each purchase is backed by a 60-Day Money Back Guarantee, offering a risk-free commitment to customer satisfaction. For usage, one softgel is recommended daily or as directed by a healthcare practitioner. It's important to note that this product contains a high level of vitamin D, and monitoring serum 25(OH)- and 1,25(OH)2-vitamin D levels every 60-90 days is highly recommended to ensure levels remain in an acceptable range. Individuals who are pregnant, nursing, taking medications, or meds should consult their healthcare provider before use.

Product Focus: Bone HealthAlso graded for:Healthy AgingBlood SugarThyroid Health
Tier ⓘ
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Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions
Cost per month
$16
Study, Trial or Testing Result SummaryMembersHuman studies

Menaquinone-7, a form of vitamin K2, is here at 90 micrograms, the dose that in a one year trial of 311 adults, where it hip bone in women after menopause but in men. A three year trial in 244 women found 180 micrograms a day spine and hip bone . …

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Review Totals and SummaryMembers8,826 reviews
8,826 reviews · Amazon 8,311 · IHerb 274 · Metagenics 125 · Bariatric Advantage 94 · Walmart 22
Biohacker SummaryMembersWhat our biohacker panel says

People take it for immune , mood and brain function, bone strength, longevity, general wellness, and men's sperm , and say people are deficient, especially those who stay indoors or live far from the sun. Three panelists give a dose of 5,000 IU of D3 taken in the morning, one says to check blood levels first (one gives a target of 45 to 70, another 60 to 100 nanograms per milliliter), and one says there is little point taking it unless you are deficient. …

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RAL SummaryMembersThe tier and why

Menaquinone-7 at its studied dose has consistent support from pooled analyses, the largest of 6,853 women, showing bone density, along with a 90 microgram trial that hip bone and reviews.

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More DetailsMembersBody systems · Combine with · Possible side effects

Body systems: Skeletal system. Combine with and possible side are for members.

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Supplement FactsVitamin D 250 mcg · Vitamin K 20 mcg · Menaquinone-7 90 mcg
Supplement Facts
Serving Size 1 Softgel
Servings Per Container 60
Amount Per Serving% Daily Value
Vitamin D (as cholecalciferol)250 mcg1,250%
Vitamin K (as phytonadione USP)20 mcg17%
Menaquinone-7 (MK-7)90 mcg†
† Daily Value not established.

Other ingredients: Olive oil, gelatin, glycerin, beeswax, water, annatto extract (color), medium-chain triglyceride oil, d-alpha tocopherol (antioxidant).

Directions: Take one softgel daily or as directed by your healthcare practitioner. Do not exceed recommended dosage unless directed by your healthcare practitioner.

Barcode (UPC) 755571934468 · Label source: Metagenics · Report a label change

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Graded October 23, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.