What Food Has Vitamin D3 and K2? Essential Dietary Sources

Reading time:10 min

Published:April 1, 2026

Author:

Cymbiotika

Finding foods that contain both Vitamin D3 and Vitamin K2 is rare, as most sources offer one or the other. Only a handful of nutrient-dense options provide both, including pastured egg yolks, natto, wild-caught fatty fish, grass-fed organ meats, aged cheeses, and grass-fed butter or ghee.

Introduction

Finding foods that contain both Vitamin D3 and Vitamin K2 is rare, as most sources offer one or the other. Only a handful of nutrient-dense options provide both, including pastured egg yolks, natto, wild-caught fatty fish, grass-fed organ meats, aged cheeses, and grass-fed butter or ghee.

At Cymbiotika, we believe true wellness is built on education and transparency. Understanding how these nutrients interact is just as important as the quality of the ingredients themselves. Think of it like a traffic system: Vitamin D3 helps your body absorb calcium from your diet, while Vitamin K2 acts as the "director," ensuring that calcium reaches your bones and teeth instead of accumulating in soft tissues like your arteries—a dynamic often called the "Calcium Paradox."

This guide explores these whole-food sources, why they are difficult to find in the modern diet, and how you can optimize your intake to bridge the gap between your diet and your body's nutritional requirements.

The Synergistic Relationship: Why D3 and K2 Belong Together

To understand which foods to prioritize, we must first understand why they are looking for them as a pair. Vitamin D3 (cholecalciferol) and Vitamin K2 (menaquinone) are both fat-soluble vitamins, meaning they require dietary fats for proper absorption. However, their relationship goes much deeper than sharing a pathway.

The Role of Vitamin D3

Vitamin D3, the "sunshine vitamin," is produced by the skin during UVB exposure. Its primary job is maintaining adequate blood levels of calcium and phosphorus by increasing intestinal absorption. Without enough D3, your body may only absorb a fraction of the calcium you consume, which can lead the body to pull calcium from the bones to maintain blood levels.

Many people find that supporting their Immunity starts with maintaining healthy Vitamin D levels, as it plays a critical role in modulating the immune response.

The Role of Vitamin K2

If Vitamin D3 is the gatekeeper that lets calcium into the body, Vitamin K2 is the usher. It activates osteocalcin, a protein that binds calcium to the bone matrix. Simultaneously, it activates Matrix GLA Protein (MGP), which helps prevent calcium from accumulating in the heart and blood vessels.

The Power of the Pair

When taken together, these vitamins may support bone density and cardiovascular health more effectively than when taken in isolation. This is why we focus heavily on the combination in our Liposomal Vitamin D3 + K2 + CoQ10 formulation, providing both in a highly bioavailable format to reduce the guesswork of nutrient timing.

What Food Has Vitamin D3 and K2?

Finding foods with significant amounts of both vitamins is rare, which is why a varied diet—or targeted supplementation—is so important. Below are the "superfoods" that naturally provide this dynamic duo.

Food
D3 Contribution
K2 Contribution/Form
Note

Pastured Egg Yolks
High (from sun exposure)
MK-4
Quality matters; deep orange yolks indicate higher nutrient density from outdoor-roaming hens.

Natto
None (naturally)
Very High MK-7
Fermented soybeans using Bacillus subtilis. Traditionally paired with fatty fish to hit both D3 and K2 targets.

Wild-Caught Fatty Fish
High (Sockeye, Mackerel, Sardines)
Small amounts
Provides the Omega-3 fats needed for absorption; eating small bones in sardines adds a calcium boost.

Grass-Fed Organ Meats
Concentrated dose
MK-4
Beef and chicken liver are among the most nutrient-dense foods on the planet.

Aged and Fermented Cheeses
Moderate (if pasture-raised)
MK-7 / MK-4
Bacteria in Gouda, Brie, Jarlsberg, and Edam synthesize K2 during the ripening process.

Grass-Fed Butter and Ghee
Higher levels
MK-4
"Spring butter" from cows grazing on fast-growing grass is historically prized for its vitamin profile.

The Bioavailability Gap: Why Diet Isn't Always Enough

Even a diligent diet faces obstacles that can prevent you from reaching optimal nutrient levels.

Soil Depletion and Industrial Farming

Modern agricultural practices have depleted minerals in our soil. When the soil lacks nutrients, the plants and the animals that eat them produce meat, dairy, and eggs with lower vitamin profiles. A factory-farmed egg may have only a fraction of the D3 found in a pastured egg.

The Problem with Absorption

Many traditional supplements use cheap fillers and synthetic forms that the body struggles to recognize. At Cymbiotika, we focus on bioavailability.

Our Liposomal Vitamin D3 + K2 + CoQ10 uses an advanced liposomal delivery approach. Liposomes are tiny fat bubbles (micelles) that mimic the body's own cell membranes. By wrapping the vitamins in these liposomes, we protect them through the digestive tract and deliver them directly into the bloodstream to maximize absorption.

Modern Lifestyles

Spending the majority of our time indoors limits natural Vitamin D3 production. Furthermore, gut health imbalances can make it difficult to absorb fat-soluble vitamins. Incorporating a high-quality Probiotic can support the "good" bacteria in your gut that help produce Vitamin K2 naturally.

Quick Summary:

Only a select group of "superfoods" like natto, pastured eggs, and organ meats naturally provide both D3 and K2.
Vitamin D3 and K2 work in synergy to absorb calcium and direct it into bones rather than arteries.
Industrial farming and soil depletion have significantly reduced the nutrient density of the modern food supply.
Successful absorption depends on healthy fats and gut health, which can be supported through liposomal delivery systems.

Practical Strategies for Everyday Balance

Integrating these nutrients into a busy lifestyle shouldn't feel like a chore. Here are some practical ways to ensure you are supporting your body's needs:

Create a Consistent Routine: Wellness is built on habits. For those who travel, our single-serve pouches of Liposomal Vitamin D3 + K2 + CoQ10 make it easy to stay consistent on the go.
Pair Your Nutrients Wisely: Since D3 and K2 are fat-soluble, always take them with a meal containing healthy fats like avocado or olive oil. You can also pair them with The Omega to provide the lipid base necessary for transport.
Support Your Energy and Focus: Pairing these bone-supporting nutrients with Molecular Hydrogen can support cellular health and Energy & Focus.

"At Cymbiotika, we believe in transparency—no hidden ingredients, fillers, or unnecessary additives. Our commitment to high-quality ingredients and rigorous quality standards empowers our community to make informed choices for their long-term health."

Understanding Different Forms of Vitamin K2

When looking at labels, you will typically see two forms of Vitamin K2:

MK-4 (Menaquinone-4): Primarily found in animal products like meat, eggs, and dairy. It is quickly absorbed but has a shorter half-life, leaving the body relatively fast.
MK-7 (Menaquinone-7): Found in fermented foods like Natto. It is highly bioavailable and stays in your system much longer, providing sustained support for your bones and heart.

In our formulations, we prioritize the forms that offer the best long-term value and absorption.

The Importance of Third-Party Testing

Trust is paramount when supplementing. You should never have to guess if what is on the label is in the bottle. At Cymbiotika, we utilize third-party testing to verify the purity and potency of every batch. Our products are non-GMO and free from unnecessary synthetic fillers, ensuring clean support for your Healthy Aging journey.

How to Tell if You Need More D3 and K2

While we cannot provide medical diagnoses, there are common signs that your body might benefit from support. During winter months, many people find their energy levels dip and immune resilience feels lower—a common time to focus on Vitamin D3.

If you are focusing on long-term bone health or cardiovascular care, ensuring a steady supply of Vitamin K2 is a proactive strategy. Rather than guessing, we recommend taking The Health Quiz. This tool identifies your unique needs to create a personalized routine.

Dietary Diversity vs. Targeted Supplementation

"Can't I just get everything from food?" In an ideal world, yes. However, food quality is often inconsistent, and indoor lifestyles limit sun exposure.

Think of supplementation as an insurance policy rather than a replacement. Eating pastured eggs and wild fish provides a fantastic foundation. Adding a liposomal supplement ensures your body always has the "GPS" it needs to manage calcium effectively. For broad-spectrum health, combining your routine with Liposomal Vitamin C can further support collagen production and immune function.

Reducing Guesswork in Wellness

The wellness industry is often filled with hype. We take a science-forward approach, focusing on realistic expectations and consistent habits. Whether you are looking to support Sleep & Stress with our Magnesium Complex or optimize nutrient absorption with liposomal technology, our goal is to provide clear information that matches your life.

Conclusion

Understanding what food has Vitamin D3 and K2 is a powerful first step in taking control of your health. By prioritizing pastured eggs, fatty fish, fermented dairy, and Natto, you provide the raw materials for strong bones and a healthy heart. However, because these nutrients are often found in low levels or are difficult to absorb, targeted supplementation can be a valuable ally.

At Cymbiotika, our Liposomal Vitamin D3 + K2 + CoQ10 is a testament to our commitment to transparency and advanced formulation. By combining nature’s wisdom with modern science, we help you achieve a state of vibrant health.

Start by incorporating nutrient-dense foods, stay consistent with your routine, and always prioritize quality and absorption.

Take The Health Quiz today to discover your personalized supplement routine.

Frequently Asked Questions

1. Can I get enough Vitamin D3 and K2 from sunlight alone?

While sunlight is the primary source of Vitamin D3, it does not provide any Vitamin K2. Furthermore, factors like geographical location, skin pigmentation, and sunscreen use can significantly limit D3 production. Most people find that a combination of sensible sun exposure, a nutrient-rich diet, and high-quality supplementation is the most effective way to maintain optimal levels year-round.

2. Is it safe to take Vitamin D3 without Vitamin K2?

While taking Vitamin D3 on its own is common, it may not be the most efficient strategy for long-term bone and heart health. Because D3 increases calcium absorption, you need Vitamin K2 to ensure that calcium is directed to the bones and kept out of the arteries. Pairing them together "completes the circuit" of calcium metabolism.

3. Which type of cheese has the highest amount of Vitamin K2?

Aged and fermented cheeses are the best sources. Gouda, Jarlsberg, and Edam are particularly high in Vitamin K2 due to the specific bacteria used during their fermentation process. Generally, the longer a cheese is aged, the higher the potential for K2 content, provided it was made with milk from pasture-raised cows.

4. How long does it take to see the benefits of D3 and K2 supplementation?

Nutritional support is a long-term investment in your health. While some people may notice improvements in their energy or immune resilience within a few weeks, the structural benefits—such as support for bone density and cardiovascular health—are typically realized over months of consistent use. We recommend starting low and going slow, following the label instructions, and consulting a healthcare professional if you are under medical supervision or taking medication.

Liposomal Advanced Creatine

Liquid Colostrum

Liposomal Elderberry

Table of Contents

Introduction

The Synergistic Relationship: Why D3 and K2 Belong Together

What Food Has Vitamin D3 and K2?

The Bioavailability Gap: Why Diet Isn't Always Enough

Practical Strategies for Everyday Balance

Understanding Different Forms of Vitamin K2

The Importance of Third-Party Testing

How to Tell if You Need More D3 and K2

Dietary Diversity vs. Targeted Supplementation

Reducing Guesswork in Wellness

Conclusion

Frequently Asked Questions

Dive deeper

Frequently searched

Recommended

Liposomal Advanced Creatine

Liquid Colostrum

Liposomal Elderberry

Frequently searched

Recommended

Liposomal Advanced Creatine

Liquid Colostrum

Liposomal Elderberry

The Synergistic Relationship: Why D3 and K2 Belong Together

What Food Has Vitamin D3 and K2?

The Bioavailability Gap: Why Diet Isn't Always Enough

Practical Strategies for Everyday Balance

Understanding Different Forms of Vitamin K2

The Importance of Third-Party Testing

How to Tell if You Need More D3 and K2

Dietary Diversity vs. Targeted Supplementation

Reducing Guesswork in Wellness

Conclusion

Frequently Asked Questions

Frequently searched

Recommended

Liposomal Advanced Creatine

Liquid Colostrum

Liposomal Elderberry