Vitamin K is not a single nutrient—it’s a family of compounds that govern calcium trafficking, blood coagulation, and arterial elasticity. Yet most supplements shortchange you by featuring only one form, leaving critical biological pathways unsupported. The difference between a complete K complex and a partial one can be felt in your morning stiffness, your bruising tendency, and your long-term cardiovascular resilience.
I’m Mohammad — the founder and writer behind ProteinJug. I’ve spent years analyzing supplement formulations, comparing bioavailability markers like all-trans vs. cis MK7 isomers, and evaluating third-party testing protocols to separate potent stacks from filler-heavy bottles. My focus is on the specific delivery mechanisms and measured dosages that determine whether a K supplement actually works.
This guide breaks down the best vitamin k1 and k2 supplements based on K-form completeness, absorption carriers, organic certification, and real-world user outcomes for bone density, vascular health, and clotting normalization.
How To Choose The Best Vitamin K1 And K2 Supplements
Choosing a K supplement means understanding that K1 (phylloquinone) supports blood clotting while K2 (menaquinones MK4 and MK7) directs calcium to bones and away from arteries. A formula that covers all three forms gives you comprehensive coverage. Here are the key factors to evaluate.
Form Completeness: K1 + MK4 + MK7
The smartest formulas include K1 for coagulation alongside both MK4 (short half-life, tissue-specific) and MK7 (long half-life, sustained activity). Single-form products leave gaps—you end up either clotting well but missing bone support, or vice versa. Look for bottles that explicitly list all three on the label.
Absorption Technology: All-Trans MK7 and Fat Carriers
MK7 exists in two isomers: all-trans (bioactive) and cis (inactive). Cheap supplements often contain cis blends that barely register in your system. Premium options use all-trans MK7 from sources like MenaQ7. Additionally, fat-soluble carriers such as coconut oil in softgels significantly improve uptake compared to dry powders.
Purity and Third-Party Certification
USDA Organic certification ensures no synthetic pesticides or GMOs. Look for supplements manufactured in cGMP facilities and tested by third-party labs for heavy metals, microbial contamination, and potency. Avoid products with long lists of fillers, artificial colors, or preservatives.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Total K2 | Premium | Bioactive all-trans MK7 absorption | USDA Organic, all-trans MenaQ7 MK7 | Amazon |
| Super Vitamin K Complex | Premium | High-volume supply with coconut oil carrier | 360 softgels, 1,500 mcg total K per serving | Amazon |
| Advanced Vitamin D 2000 with K | Mid-Range | Combined D3 + all 3 K forms in one capsule | 60 veggie caps, includes MK4 and MK7 | Amazon |
| Vitamin K with Whole Food Blend | Mid-Range | Vegan formula with 25+ fruit/veg matrix | 60 vegan caps, K1 + MK4 + MK7 | Amazon |
| Peak Performance Vitamins A, D, E, K | Value | Budgetting four fat-soluble vitamins in one | 60 vegan caps, includes A, D3, E, K1+MK4+MK7 | Amazon |
In‑Depth Reviews
1. Total K2 by Triquetra Health
Triquetra Health’s Total K2 is the rare supplement that delivers both MK4 and MK7 in a full-spectrum formula, plus K1 and Vitamin D3 as a cofactor. The MK7 comes exclusively from MenaQ7—a clinically studied all-trans source that avoids the inactive cis isomer found in cheaper products. Each capsule provides 620 mcg of K2 per serving, making it one of the most potent and bioavailable options on the market.
Users report measurable improvements in bruising recovery, joint flexibility, and cardiovascular markers like blood pressure. The USDA Organic certification and third-party testing for over 100 toxins add a layer of trust that few competitors match. The formula is vegan, GMO-free, and free of soy, gluten, and preservatives.
Some users note the capsule size is slightly larger than average, but the clean ingredient profile and clinically backed MK7 source justify the premium positioning. For buyers prioritizing absorption science and organic purity, this is the definitive pick.
Why it’s great
- USDA Organic certified; third-party tested for purity
- All-trans MenaQ7 MK7 ensures bioactive absorption
- Full spectrum K1, MK4, and MK7 in one capsule
Good to know
- Premium tier pricing; mid-range budgets may look elsewhere
- Capsules are slightly larger than mini softgels
2. Super Vitamin K Complex by Micro Ingredients
Micro Ingredients delivers a massive 360-softgel pouch that provides up to 180 servings of a three-form K complex—K1, MK4, and MK7—infused in coconut oil for enhanced fat solubility. Each two-softgel serving supplies 1,500 mcg of total K (1,000 mcg MK4, 100 mcg MK7, and K1), a dosage designed for sustained calcium regulation and bone support.
The coconut oil carrier is a smart formulation choice because vitamin K is fat-soluble, and the oil matrix improves absorption efficiency compared to dry tableted ingredients. Users consistently praise the tiny softgel size and the pleasant coconut aroma, noting no stomach upset or aftertaste. The non-GMO formula excludes soy, dairy, gluten, and preservatives.
The only trade-off is packaging—the product comes in a resealable bag rather than a bottle, which some users find less convenient for daily dispensing. However, for the price per serving and the extended supply, this is an exceptional value proposition for long-term users.
Why it’s great
- 180 servings per pouch; excellent long-term value
- Coconut oil carrier boosts fat-soluble absorption
- Small softgels with no aftertaste or stomach issues
Good to know
- Packaged in a bag, not a bottle
- Not USDA Organic certified
3. Peak Performance Advanced Vitamin D 2000 with All 3 Types of Vitamin K
This Peak Performance formula smartly pairs 2,000 IU of Vitamin D3 with all three K forms—K1, MK4, and MK7—in a single small veggie capsule. The rationale is sound: Vitamin D boosts calcium absorption, while the K complex directs that calcium to bones rather than arteries. Users taking this combination report better sleep regulation (when taken in the morning), improved alertness, and fewer colds.
The capsules are notably small and easy to swallow, a detail appreciated by those who struggle with larger tablets. The formula is free of gluten, GMOs, additives, and artificial colors, and it’s manufactured under GMP standards in the USA. An additional philanthropic angle—every purchase donates vitamins to a child in need through Vitamin Angels—adds a feel-good factor.
The main limitation is the lower vitamin D dose (2,000 IU) compared to higher-potency options, and the bottle size is 60 capsules, which means a two-month supply if you take one daily. It’s an excellent entry point for those new to K supplementation or anyone wanting a streamlined D+K stack.
Why it’s great
- All three K forms plus D3 in one small capsule
- GMP certified; free of common allergens and additives
- 1-for-1 donation program supports children’s nutrition
Good to know
- Only 2,000 IU of Vitamin D—some may want higher
- 60-count bottle requires frequent reordering
4. Peak Performance Vitamin K with Whole Food Blend
This Peak Performance offering combines K1, MK4, and MK7 with a proprietary blend of over 25 fruits and vegetables, creating a whole-food matrix designed to enhance nutrient synergy. The MK7 is sourced from Bacillus subtilis natto, a fermentation-derived form that mirrors the bioactive K2 found in traditional natto. The formula is vegan, free of soy, milk, egg, shellfish, corn, wheat, and peanuts.
Users have reported positive outcomes for hemorrhoidal bleeding reduction, improved energy, and smoother digestion—likely a result of the combined plant-based cofactors. The capsules are easy to swallow and contain no synthetic fillers or preservatives. The 1-for-1 donation program to Vitamin Angels is also included here.
The total K dosage per capsule is moderate compared to more concentrated options, so users with higher K requirements may need two capsules daily. Additionally, the whole-food blend, while beneficial for some, introduces more ingredients to a formula that minimalists might prefer to avoid. It’s a great choice for those who believe in food-based nutrition over isolated compounds.
Why it’s great
- Whole-food fruit and vegetable blend for natural synergy
- Vegan and free of top allergens; GMP certified
- K1 + MK4 + MK7 in easy-to-swallow capsules
Good to know
- Moderate K dosage may require two capsules daily
- Whole-food blend adds ingredients minimalists may dislike
5. Peak Performance Vitamins A, D, E, K All in 1 Vegan Capsule
This all-in-one capsule packs Vitamin A (as retinyl palmitate), Vitamin D3 (cholecalciferol), Vitamin E (d-alpha tocopherol succinate), and a full Vitamin K complex (K1, MK4, and MK7) into a single vegan capsule. It’s designed for those who want to replace multiple bottles with one streamlined supplement. The K forms include both MK4 and MK7 alongside K1, ensuring comprehensive calcium trafficking support.
Users have reported noticeable improvements in skin health, mood stability, and energy levels within two weeks of consistent use. The capsule is easy to digest and doesn’t cause nausea or aftertaste. The formula is free of soy, milk, egg, shellfish, corn, wheat, peanuts, gluten, and preservatives, and it’s manufactured under GMP standards in the USA.
Some customers have flagged inconsistent capsule counts—occasionally short by 2-4 pills per bottle, which is a manufacturing quality concern worth noting. Additionally, the 60-count bottle means it’s a one- to two-month supply depending on dosage. For the budget-conscious buyer wanting a four-in-one fat-soluble vitamin stack, this is a strong candidate despite the minor counting issue.
Why it’s great
- Four essential fat-soluble vitamins in one capsule
- Includes full K complex (K1, MK4, MK7) plus A, D, E
- Vegan, allergen-free, and GMP certified
Good to know
- Occasional underfill reported (missing 2-4 capsules)
- 60-count bottle may need frequent repurchase
FAQ
Why should I take both K1 and K2 instead of just one form?
What is the difference between MK4 and MK7 in vitamin K2?
Can I take vitamin K supplements with blood thinners like Warfarin?
How much vitamin K should I look for in a daily supplement?
Final Thoughts: The Verdict
For most users, the best vitamin k1 and k2 supplements winner is the Total K2 by Triquetra Health because it combines USDA Organic certification, all-trans MenaQ7 MK7, and full-spectrum K1 + K2 in a single potent capsule. If you want a long-lasting supply with a coconut oil carrier for better absorption, grab the Super Vitamin K Complex by Micro Ingredients. And for a budget-friendly all-in-one stack that includes Vitamin D3 alongside the K complex, nothing beats the Peak Performance Advanced Vitamin D 2000 with K.