More consumers are seeking ingredients that are not only clinically effective, but also ethically sourced, environmentally responsible, and biologically intelligent. Vitamin D₂ (ergocalciferol) represents exactly that.

Traditionally overshadowed by vitamin D₃, this fungal-derived form of vitamin D is reclaiming its place at the forefront of modern functional nutrition. And for good reason.

What Is Vitamin D₂?

Vitamin D₂ is one of the two primary forms of vitamin D, the other being D₃ (cholecalciferol). While D₃ is typically synthesized from animal sources like lanolin (sheep’s wool) or fish liver oil, D₂ is entirely plant-based, found in fungi and mushrooms.

When mushrooms are exposed to UV light—just like human skin—they convert ergosterol into vitamin D₂, a process as natural and intelligent as the compound itself.

Why D₂ Matters More Than Ever

With growing attention on plant-based living, ethical sourcing, and sustainable wellness, D₂ stands out as the ideal choice for:

• Vegans and vegetarians

• Religious or ethical consumers

• Those seeking cruelty-free supplements

• Sustainability-conscious individuals

In products like MÙSH DNA, vitamin D₂ is not synthetically added—it's grown into the product through the same mushrooms that offer other functional health benefits. This creates a natural synergy that synthetic isolates can’t replicate.

Clinically Proven Health Benefits

Vitamin D, regardless of form, is essential to human health. Vitamin D₂ specifically is scientifically validated to:

• Support normal immune function

• Maintain healthy bones and teeth

• Aid in muscle function and calcium absorption

• Help regulate blood calcium levels

These benefits are not marketing claims—they are authorized health claims under EU Regulation (EC) No 1924/2006 and recognized by the FDA.

How D₂ Compares to D₃

There has long been debate over the relative bioavailability of vitamin D₂ vs. D₃. While some studies suggest D₃ may raise blood serum levels more efficiently, emerging research reveals both forms play distinct and meaningful roles in immune regulation and gene expression.

A 12-week randomized controlled trial found that D₂ and D₃ both influenced immune-related gene expression, but through overlapping yet different mechanisms—indicating that D₂ isn’t just effective, it may be uniquely functional in ways we’re only beginning to understand.

More Than Bones: The Neuro-Immune Angle

Recent interest in vitamin D has moved beyond bone health into its effects on:

• Cognitive function

• Mood regulation

• Neuromuscular health

• Inflammatory balance

Vitamin D receptors are found in the brain, immune cells, and gut, linking this micronutrient directly to systems that impact long-term vitality and resilience. D₂’s presence in whole mushrooms—alongside antioxidants like ergothioneine—may further enhance this effect when delivered in synergy.

A Sustainability Standpoint

Animal-derived D₃ comes with an ecological cost:

• Animal farming

• Industrial extraction

• High carbon and water footprints

By contrast, vitamin D₂ from mushrooms:

• Requires no animal inputs

• Is UV-activated using light—not chemicals

• Can be grown indoors with minimal environmental impact

• Aligns with regenerative and closed-loop agricultural practices

This makes D₂ a clear choice for brands and consumers who value clean-label integrity and planetary health.

In MÙSH DNA: Function Meets Philosophy

In MÙSH DNA, vitamin D₂ isn’t just a supplement—it’s a natural expression of the ingredient’s origin story. Grown in our own mushrooms, dual-extracted for potency, and protected through low-temperature lyophilization, our D₂ is:

• Integrated, not added

• Traceable, not generic

• Effective, not overstated

It’s vitamin D with a narrative, and a purpose.

Why We Champion D₂

• 100% vegan, ethical, and cruelty-free

• Backed by clinical evidence and regulatory approval

• Sourced from traceable, sustainable mushroom cultivation

• Supports immunity, bone health, and cognitive function

• Aligned with the future of clean, conscious nutrition

The Future Is Fungal

As wellness evolves, so does the intelligence of the ingredients we trust. Vitamin D₂ represents a shift toward a more connected, intentional form of nourishment—one that honors both body and earth.