Vitamin K2 Rich Foods – The Complete Guide to Bone Strength and Heart Health (2026)

Most people have never heard of vitamin K2 rich foods. That is the problem. You could be taking calcium and vitamin D every day, eating leafy greens, exercising regularly, and still watching your bone density decline while calcium quietly builds up in your arteries instead of your skeleton. That is not a scary story. It is what happens when K2 is missing from the equation.

Vitamin K2 guides calcium to the right places in the body. Without it, calcium is essentially a construction crew with no directions — it wanders, deposits in the wrong tissues, and leaves bones under-supplied. The good news is that vitamin K2 rich foods are accessible, delicious, and surprisingly easy to add to your daily meals. You do not need expensive supplements if you eat the right things.

This guide covers everything you need: how K2 works in your body, the difference between the two main forms (MK-4 and MK-7), a complete ranked food list with verified serving data, a practical daily eating plan, and honest answers to the questions that matter most. Every fact here comes from peer-reviewed research.

 

What You Will Learn The difference between vitamin K1 and K2 — and why it matters for your health MK-4 vs MK-7: which form does what, and which foods contain each A full-ranked table of the best food sources with real serving data How vitamin K2 protects your heart (the Rotterdam Study explained simply) How vitamin K2 builds and maintains bone density A practical daily meal plan to hit your K2 target from food Vegan and plant-based options for getting K2 When to consider supplements — and the safe upper limit FAQ section covering the most important K2 questions

 

 

1. What Is Vitamin K2 — and Why Is It Different from K1?

Vitamin K is not one nutrient. It is a family of fat-soluble vitamins that share a similar chemical structure but behave quite differently in the body. The two main forms you need to understand are vitamin K1 (phylloquinone) and vitamin K2 (menaquinone).

Vitamin K1 is found primarily in green leafy vegetables — spinach, kale, broccoli. It handles blood clotting and spends most of its time in the liver. Your body is reasonably good at getting K1 from a vegetable-rich diet.

Vitamin K2 works differently. It activates two critical proteins: osteocalcin (which binds calcium into bone) and Matrix Gla Protein (MGP) (which blocks calcium from depositing in artery walls and soft tissues). Without enough K2 to activate these proteins, calcium floats in the blood and ends up in the wrong places. Researchers sometimes call this the “calcium paradox” — low calcium in bones, high calcium in arteries — and K2 deficiency is central to it.

According to the National Institutes of Health Office of Dietary Supplements, K2 has a longer half-life in the body than K1 and shows activity in tissues beyond the liver — particularly in bones, arteries, and the heart. The body converts only a handful of K1 into K2, and research suggests this conversion is inefficient. The practical implication: eating more spinach does not reliably cover your K2 needs. You need to eat foods that actually contain it.

Why most people are K2 deficient

Modern diets have drifted away from the two food categories that deliver the most K2: fermented foods and grass-fed animal products. Traditional diets across Japan, Europe, and other cultures naturally included regular portions of aged cheese, fermented soybeans, organ meats, and full-fat dairy from pasture-raised animals. Today’s typical Western diet has largely replaced these with processed foods that contain almost no K2.

Certain medications also deplete K2. Broad-spectrum antibiotics reduce gut bacteria that produce menaquinone. The weight-loss drug orlistat reduces the absorption of all fat-soluble vitamins, including K2. If you take either of these regularly, your K2 levels may be low even if your diet is otherwise reasonable. For a full picture of vitamins that support bone and joint strength — including calcium, D3, and magnesium — see our complete bone nutrition guide alongside this one.

K2 deficiency is also underdiagnosed because symptoms are slow to appear — brittle bones and arterial stiffness develop over years, not weeks. If your goal is to increase bone strength naturally, vitamin K2 from food is consistently one of the most overlooked starting points.

 

MK-4 vs MK-7: The Two Forms of Vitamin K2 Explained

Not all vitamin K2 is the same. The most important practical distinction is between MK-4 and MK-7 — the two forms you will encounter most often in food and supplements.

 

Factor	MK-4	MK-7
Found in	Animal products (meat, liver, eggs, dairy)	Fermented foods (natto, cheese, kefir)
Half-life in body	Short — leaves within hours	Long — active for up to 3 days
Primary roles	Soft tissue, brain, and arterial health	Bone density, cardiac protection
The easiest food source	Egg yolk, chicken, butter	Natto, aged cheese, kefir
Vegan-friendly?	No — animal-based only	Yes — natto, fermented veg (small amounts)
Daily target from food	~45–185 mcg (varies by food)	100–180 mcg MK-7 is considered effective

What this means for your food choices

MK-7 is considered the more potent dietary form because it stays active in the body for up to 72 hours after eating, making it the most studied form of vitamins for bone health in clinical research. MK-4, found in animal products, is absorbed quickly and clears the body faster, which means consistent daily intake matters more for MK-4 than for MK-7.

The ideal approach is to eat both — not one or the other. Egg yolks, chicken, and butter give you MK-4. Aged cheese, natto, and kefir give you MK-7. Together, they cover the different roles K2 plays in bone, arterial, and soft-tissue health. Fatty fish contributes modest K2 alongside another critical nutrient — for the full picture of omega-3 fatty acids and their role in eye and body health, including how they reduce systemic inflammation, see our dedicated guide.

 

The 13 Best Vitamin K2 Rich Foods — Ranked by Serving Amount

The following table is based on published food composition data, including the 2017 analysis by Walther and Chollet, Menaquinone, Bacteria, and Foods: Vitamin K2 in the Diet,’ which is the most comprehensive cross-referenced food database analysis available for K2. Some values are estimated ranges because of natural variation in farming and fermentation practices.

 

Food	K2 per serving	Form	Type	Best use
Natto (3 oz / 85g)	850–1,000 mcg	MK-7	Fermented	Bone + heart — the champion
Goose / Duck Liver (1 oz)	~369 mcg	MK-4	Animal	Nutrient-dense — eat occasionally
Aged Gouda / Edam (1 oz)	~76 mcg	MK-8/9	Dairy	Practical daily source
Aged Cheddar (1 oz)	65–85 mcg	MK-8/9	Dairy	Great for snacking
Brie / Soft Cheese (1 oz)	~56 mcg	MK-9	Dairy	Easy to add daily
Beef Liver, grass-fed (1 oz)	11–72 mcg	MK-4	Animal	Iron + K2 in one hit
Chicken Liver (1 oz)	~14 mcg	MK-4	Animal	Budget-friendly option
Dark Chicken Meat (3 oz)	8–60 mcg	MK-4	Animal	Easy everyday protein
Egg Yolk — pasture-raised (1)	15–32 mcg	MK-4	Animal	Higher K2 from grass-fed hens
Grass-Fed Butter (1 tbsp)	~15 mcg	MK-4	Dairy	Pairs with fat-soluble K2
Kefir, full-fat (1 cup)	10–20 mcg	MK-7/8	Fermented	Gut health bonus
Sauerkraut (1/2 cup)	4–5 mcg	MK-7	Fermented	Vegan-friendly + probiotic
Kimchi (1/2 cup)	2–4 mcg	MK-7	Fermented	Add-on, not primary source

1. Natto — the undisputed K2 champion

Nothing else comes close. Natto is a traditional Japanese food made from fermented soybeans, and with 850–1,000 mcg of MK-7 per 3 oz serving, a single portion provides more than a week’s worth of the nutrient. The MK-7 in natto stays active in the bloodstream for up to 72 hours after consumption, according to research comparing MK-4 and MK-7 bioavailability published in Nutrition Journal.

The honest challenge: Natto has a sticky texture, a pungent smell, and a bold taste that takes some getting used to. Start with a handful (one tablespoon) mixed with rice, soy sauce, and mustard. If you can work up to 2–3 servings per week, you will meet your K2 needs from food alone.

2. Aged hard cheeses — the practical daily source

For people who cannot face natto, aged hard cheeses are the most practical everyday solution. Gouda, Edam, Jarlsberg, and aged cheddar are particularly high in MK-8 and MK-9 — the forms produced by the lactic acid bacteria used in their fermentation. A 2013 study in the British Journal of Nutrition confirmed that fermented dairy products are among the most significant sources of dietary menaquinone in Western diets.

An ounce of aged Gouda delivers approximately 76 mcg of K2 alongside a meaningful calcium contribution. If you want to explore the full list of foods that increase calcium in bones, the two lists overlap considerably — dairy is the cornerstone of both.

3. Liver — the most nutrient-dense animal source

Goose liver and duck liver top the animal-product category, with goose liver pit delivering approximately 369 mcg per ounce of MK-4. Beef liver from grass-fed animals provides a more modest 11–72 mcg per ounce — the range is wide because K2 content depends heavily on whether the animal was grass-fed. Conventionally raised animals fed grain have significantly lower K2 in their tissues.

Liver does not need to be eaten daily to be effective. One or two servings per week — sautéed with onions, added to a pâté, or blended into meatballs — provides a meaningful MK-4 contribution. The bonus: liver is one of the most micronutrient-dense foods available, also delivering iron, B12, vitamin A, and zinc in a single serving. If iron deficiency is a concern, read our full guide on treating anemia with food for the complete picture.

4. Pasture-raised egg yolks — the daily staple

A single pasture-raised egg yolk provides 15–32 mcg of MK-4. The keyword is pasture-raised: hens that eat grass, insects, and grubs convert significantly more K1 into K2 than hens raised on grain in confined environments. Studies have shown that eggs from hens with access to pasture can contain 20% more K2 than standard supermarket eggs.

Three egg yolks daily — in an omelet, scrambled eggs, or a frittata — provides a consistent 45–96 mcg of MK-4 alongside biotin, vitamin D, and protein. Many of these same nutrients appear in our guide to foods for healthy nail growth — the overlap is not a coincidence. The same nutrient-dense foods that build strong bones also build strong nails.

5. Grass-fed butter and full-fat fermented dairy

Grass-fed butter contains roughly 15 mcg of MK-4 per tablespoon — modest compared to liver or natto, but meaningful given how easy it is to include daily. The fat in butter also improves absorption of K2 from other foods eaten alongside it, since K2 is a fat-soluble vitamin and requires dietary fat for optimal uptake.

Full-fat kefir (10–20 mcg MK-7 per cup) and full-fat natural yogurt offer fermented dairy options that work well for people who want K2 through daily habit rather than occasional high-dose foods. Always choose full-fat versions — the K2 content drops significantly in low-fat or non-fat dairy products.

6. Fermented vegetables — small amounts, real value

Sauerkraut and kimchi contain small amounts of K2 (4–5 mcg per half-cup for sauerkraut) produced by the bacteria responsible for fermentation. They are not primary K2 sources, but they add to the cumulative total, support gut health, and — crucially — the bacteria in fermented vegetables can produce K2 in the gut, indirectly supporting K2 status beyond the measurable K2 in the food itself.

One important note: pasteurized sauerkraut and kimchi contain significantly less K2 because heat kills the bacteria responsible for production. Always choose raw, unpasteurized fermented vegetables for K2 benefit. The same gut-health support from fermented foods also improves absorption of nutrients relevant to the best foods for hair growth — including biotin and zinc — so the benefits of fermented vegetables reach further than K2 alone.

 

4. What Vitamin K2 Does for Your Heart — The Science

This is where the evidence gets genuinely compelling. The landmark study on K2 and cardiovascular health is the Rotterdam Study, a 10-year population-based study that followed 4,807 initially healthy Dutch men and women aged over 55.

Published in the Journal of Nutrition in 2004 by Geleijnse et al., the study found that people in the highest third of dietary menaquinone (vitamin K2) intake had a 57% lower risk of dying from heart disease, 52% less severe aortic calcification, and a 26% lower risk of all-cause mortality — compared to those with the lowest K2 intake. Critically, these effects were observed for K2, not K1. Eating more leafy greens (K1) showed no cardiovascular benefit in this study.

The mechanism is Matrix Gla Protein (MGP), a protein found naturally in arterial walls. MGP inhibits vascular calcification — but only when activated by vitamin K2. Without adequate K2, MGP remains inactive (carboxylated), and calcium accumulates in the artery walls, increasing stiffness and cardiovascular risk. A subsequent intervention trial published in Thrombosis and Hemostasis found that 180 mcg of MK-7 daily for 3 years significantly decreased arterial stiffness in postmenopausal women. Diet matters significantly for cardiovascular health — and for the exercise side of the equation, our heart health workout plan covers the seven movements with the strongest cardio evidence.

The Rotterdam Study — Key Finding (2004) Study population: 4,807 adults, followed for 10 years Finding: Highest K2 intake → 57% lower cardiovascular mortality Finding: Highest K2 intake → 52% less aortic calcification Finding: K1 intake had NO significant effect on any cardiovascular outcome Implication: Eating leafy greens does not protect arteries the way K2-rich foods do Source: Geleijnse et al., Journal of Nutrition, 2004 — PubMed ID: 15514282

When calcium accumulates in artery walls, it triggers chronic inflammation — the same pathway that harms eye tissue and other vascular structures. Our guide to an anti-inflammatory diet for eye and overall health explores how nutrition can calm this inflammatory process across multiple body systems simultaneously.

5. What Vitamin K2 Does for Your Bones

The bone health story is equally well-established. How to improve bone health naturally is a question that always leads back to three nutrients working together: calcium, vitamin D3, and vitamin K2. Of the three, K2 is consistently the most overlooked.

Osteocalcin is a protein produced by osteoblasts (the cells that build bones). It plays a critical role in binding calcium to the hydroxyapatite crystals that give bones their strength. But osteocalcin only works when activated — and vitamin K2 is the cofactor that activates it. For a complete foundation on bone health explained — how bones form, what weakens them, and what rebuilds them — our complete overview covers everything alongside K2’s specific role here.

Without enough K2, osteocalcin remains in its inactive, undercarboxylated form. It cannot bind calcium, and bone mineralization suffers. This is why people can take calcium supplements for years without improving bone density — the calcium simply cannot reach the bone matrix if K2 is insufficient.

A 2022 meta-analysis published in Frontiers in Public Health analyzed 16 randomized controlled trials covering 6,425 participants and found that vitamin K2 supplementation produced a significant improvement in lumbar spine bone mineral density (p = 0.006). A further meta-analysis from 2022 in the Journal of Bone and Mineral Metabolism found that K2 was associated with a significantly increased percentage change of lumbar BMD (weighted mean difference of 2.17%) and a 50% reduction in fracture incidence after excluding one heterogeneous study.

K2 is particularly important for women over 40, where declining estrogen accelerates the conversion of osteocalcin to its inactive form. Multiple clinical trials have shown that K2 supplementation — particularly MK-7 — combined with calcium and vitamin D is more effective for bone mineral density than calcium and D alone.

6. How to Get Enough K2 From Vitamin K2 Rich Foods Daily

There is no official Recommended Dietary Allowance (RDA) for vitamin K2 specifically — the NIH provides a combined adequate intake (AI) for total vitamin K of 90 mcg per day for women and 120 mcg per day for men. However, research on K2’s specific roles in bone and heart health suggests that 100–180 mcg of MK-7 daily is likely the meaningful target for these benefits, based on the intervention trials that showed measurable outcomes.

The good news is that hitting this target from food is practical for most people, especially if you focus on the high-density sources — natto, aged cheese, and egg yolks.

A practical daily plan to hit your K2 target

 

Sample Day Covering 100–180 mcg K2 From Food Breakfast:   3 pasture-raised egg yolks (45–96 mcg MK-4) 1 tsp grass-fed butter (15 mcg MK-4) Lunch:       1 oz aged Gouda in a salad (76 mcg MK-8/9) Afternoon:   1 cup full-fat kefir (10–20 mcg MK-7) Dinner:      3 oz dark chicken thigh (up to 60 mcg MK-4)   Estimated daily total: 206–267 mcg combined MK-4 + MK-7 No supplements required. No natto required.

 

If you eat natto 2–3 times per week, you can relax about the other sources considerably — a single 3 oz serving provides more K2 than most people eat in a week from all other sources combined.

The fat absorption rule — do not ignore this

Vitamin K2 is fat-soluble. It requires dietary fat for absorption. Eating K2-rich foods with a fat source — butter, olive oil, avocado, the fat naturally present in cheese or egg yolk — significantly improves how much K2 your body actually absorbs.

A low-fat diet that includes K2 foods will deliver far less K2 to your bloodstream than the same foods eaten with adequate fat. Pairing K2 foods with vitamin C foods also supports the collagen production that works alongside K2 in maintaining vascular and bone tissue integrity — the two nutrients are complementary, not competing.

This is another reason full-fat dairy is the right choice for K2. Low-fat cheeses and fat-free yogurt not only contain less K2, but the K2 they do contain is also absorbed less efficiently because the fat carrier is gone.

7. Vitamin K2 and Vitamin D3 — Why They Work Together

If K2 is the guide for calcium, vitamin D is the gatekeeper that lets calcium into the body. The two vitamins work synergistically and are increasingly prescribed together by clinicians focused on bone and cardiovascular health.

Vitamin D increases calcium absorption from food in the intestine. Without adequate K2, the absorbed calcium may not be directed to bones — it may instead accumulate in arteries and soft tissues. If you are not supplementing D3 and want to raise it through diet first, our guide to foods high in vitamin D covers the top ten dietary sources with real serving data — many of which overlap directly with K2-rich foods.

The practical takeaway is simple: if you supplement vitamin D3 (particularly at doses above 2,000 IU daily), it is worth ensuring your K2 intake from food or supplements is adequate alongside it.

8. Vitamin K2 for Vegans and Plant-Based Diets

This is one of the most searched questions around K2, and the honest answer is: it is genuinely harder on a plant-based diet — but not impossible.

MK-4 is exclusively found in animal products and cannot be sourced from a vegan diet (although the body can theoretically convert K1 to MK-4, research suggests this conversion is slow and highly variable between individuals). MK-7, however, is produced by bacteria during fermentation and can be found in some plant-based fermented foods.

Best vegan sources of vitamin K2

• Natto — by far the best plant-based option. It contains more MK-7 per serving than any other food, plant or animal. If you can incorporate natto into your diet 2–3 times per week, your MK-7 needs are essentially covered.
• Raw, unpasteurized sauerkraut — small amounts of MK-7 from bacterial fermentation.
• Raw, unpasteurized kimchi — similar to sauerkraut.
• Some fermented tempeh products have variable MK-7, depending on the bacterial strains used in fermentation.
• MK-7 supplements derived from natto — a legitimate and effective option for vegans who cannot tolerate natto as food. Dose: 100–180 mcg MK-7 daily.

Vegans should be aware that MK-4 deficiency is harder to address through diet. If you avoid all animal products, an MK-7 supplement covers the most clinically studied cardiovascular and bone benefits, but cannot replicate the full MK-4 roles in soft tissue and brain health. Discussing K2 levels with a doctor — particularly anyone over 40 — is worthwhile.

9. Vitamin K2 Supplements — When Food Is Not Enough

Food first is always the right philosophy. But supplements are appropriate in specific circumstances:

• If you are vegan or vegetarian and cannot eat natto regularly, MK-7 supplementation at 100–180 mcg daily is evidence-based and widely used.
• If you are over 50 with confirmed low bone density, K2 supplementation in combination with calcium and vitamin D3 has the strongest clinical support in this group.
• If you take high-dose vitamin D3 (above 2,000 IU), pairing it with K2 is increasingly recommended by clinicians to direct the additional calcium absorbed.
• If you have been on long-term antibiotics, your gut bacteria’s production of menaquinone may be depleted.

Safety and upper limits

In November 2025, the Council for Responsible Nutrition (CRN) updated its safety guidance for vitamin K2 (MK-7), setting the Highest Observed Intake (HOI) at 375 mcg/day of MK-7 for adults, with no serious adverse effects identified at this dose in clinical trials. No upper tolerable intake level (UL) has been set because no toxicity has been observed. The HOI does not apply to individuals on vitamin K antagonist medications such as warfarin — those individuals should consult their doctor before taking any K2 supplement.

Important — If You Take Blood Thinners Vitamin K2 interacts with warfarin and other vitamin K antagonist anticoagulants. Do not change your vitamin K2 intake (from food or supplements) without speaking to your doctor first. Consistent K2 intake is usually manageable with medication adjustment, but sudden changes can affect INR levels.

FAQs About Vitamin K2 Rich Foods

 

What happens if you do not get enough vitamin K2?

Calcium gradually migrates to the wrong tissues — arteries, kidneys, and joints — instead of reinforcing bones. Over the years, this increases the risk of osteoporosis, arterial stiffness, and cardiovascular disease. The effects are slow and silent, which is exactly why K2 deficiency often goes undetected until symptoms of these conditions appear.

Can I get enough K2 from leafy greens?

No. Leafy greens are high in vitamin K1, which handles blood clotting but does not activate MGP or osteocalcin effectively. The body converts only a small, inefficient fraction of K1 into K2. The Rotterdam Study specifically found no cardiovascular benefit from high K1 intake — the benefit came exclusively from K2.

How much natto do I need to eat to hit my K2 target?

Approximately one tablespoon to one ounce (30–85g) twice per week is enough. A single standard serving of natto (85g / 3 oz) provides 850–1,000 mcg of MK-7 — well above the 100–180 mcg daily target used in most clinical research. Because MK-7 stays active in the body for up to 72 hours, eating it two to three times per week maintains consistently elevated K2 levels.

Is grass-fed butter really that much better than regular butter?

For K2, yes — significantly. The K2 content in dairy fat comes from the cow’s diet. Cows that eat green grass consume vitamin K1, which they convert to K2 MK-4 in their tissues. Grain-fed cows produce little to no K2 through this conversion. Independent testing has consistently found that grass-fed butter contains measurably higher K2 than conventional grain-fed butter.

Do I need to eat natto if I already eat a lot of cheese?

It depends on your goal. Aged cheese provides MK-8 and MK-9, which contribute to bone and cardiovascular health. However, MK-7 from natto has a longer half-life and is more extensively studied in clinical trials. If you reliably eat 2–3 oz of aged Gouda or Edam daily plus two to three egg yolks, you are likely meeting your practical K2 needs without natto. If you have confirmed bone loss or cardiovascular risk factors, adding natto or an MK-7 supplement provides an additional evidence-based layer.

Is vitamin K2 safe to take long-term?

Yes, based on current evidence. No toxicity has been observed from dietary K2 at any amount found in food. For MK-7 supplements, the CRN’s updated safety assessment found no serious adverse effects at 375 mcg per day — well above the doses used in most clinical research. The only meaningful safety concern involves individuals on vitamin K antagonist anticoagulants.

The Bottom Line

Vitamin K2 rich foods are one of the most under-appreciated categories in nutrition. You will not hear about them in typical health messaging because they do not fit a simple narrative — they are mostly animal and fermented foods, not smoothie ingredients. But the research is clear and consistent: adequate K2 intake from dietary sources protects arteries from calcification, supports bone mineral density, and may reduce all-cause mortality.

The practical path forward is simpler than it looks. Two eggs at breakfast, an ounce of aged Gouda at lunch, a tablespoon of grass-fed butter, and full-fat kefir in the afternoon covers most people’s K2 needs from vitamin K2-rich foods alone — no supplements required. Add natto twice a week, and you have the strongest K2 diet available from whole foods.

The same fat-soluble vitamins and mineral-rich animal foods that direct calcium to bones also strengthen keratin-based tissues. If brittle nails are part of your picture, our guide on how to get strong nails explains the nutritional connection — and many of the same foods appear in both guides.

Start with one change. If you only do one thing after reading this article, switch to aged Gouda or Jarlsberg cheese for your daily snacking. It is the easiest, most consistent K2 upgrade available — and it tastes considerably better than most supplements.

 

Your K2 Action Plan Today:       Buy aged Gouda or Jarlsberg — use it as your daily snacking cheese This week:   Switch to pasture-raised eggs and grass-fed butter This month: Try natto once — mix with rice, soy sauce, and a little mustard Ongoing:     1 cup full-fat kefir daily for fermented K2 + gut health If vegan:    Research MK-7 supplements (100–180 mcg daily) and raw unpasteurized natto If over 50: Discuss K2 status with your doctor, particularly if you take calcium or vitamin D

Sources and References

All claims in this article are drawn from published, peer-reviewed research and guidance from recognized medical and nutritional bodies. Key sources:

 

1. NIH Office of Dietary Supplements — Vitamin K Fact Sheet for Health Professionals

https://ods.od.nih.gov/factsheets/VitaminK-HealthProfessional/

2. Geleijnse JM, et al. (2004). Dietary intake of menaquinone is associated with a reduced risk of coronary heart disease: the Rotterdam Study. Journal of Nutrition. 134(11):3100–5.

https://pubmed.ncbi.nlm.nih.gov/15514282/

3. Ma M, et al. (2022). Efficacy of vitamin K2 in the prevention and treatment of postmenopausal osteoporosis. Frontiers in Public Health. 10:979649.

 

4. Haugsgjerd TR, et al. (2020). Vitamin K2 — a neglected player in cardiovascular health. Open Heart. PMC8596038.

https://pmc.ncbi.nlm.nih.gov/articles/PMC8596038/

5. Cleveland Clinic — Should You Eat More Vitamin K2-Rich Foods? (2023)

https://health.clevelandclinic.org/vitamin-k2-foods

6. Healthline — Everything You Need to Know About Vitamin K2. Medically reviewed, March 2024.

https://www.healthline.com/nutrition/vitamin-k2

About the Author

Adel Galal is the founder of NextFitLife.com and has spent over 30 years studying, practicing, and writing about health, fitness, nutrition, and wellness. All content on NextFitLife is for informational purposes only and does not substitute for professional medical advice.

Medical Disclaimer: This article is for educational and informational purposes only. Always consult a qualified healthcare professional before making significant changes to your diet or supplement routine, particularly if you take blood-thinning medications.