About - Holistic Fungi

A Holistic Approach to Feeling Good, Every Day

Our aim is to provide quality products, backed by science and medical expertise, that add mindfulness and connection to your daily routine.

Our Story

Katie Simons, PharmD, BCPS

Holistic Fungi is a women owned, small-batch herbal/botanical dietary supplement company based in Durango, Colorado. Founded in 2023 by Katie Simons, PharmD, BCPS, Holistic Fungi offers pharmacist-formulated functional mushroom blends designed for people who want clean, science- backed and delicious products they can trust.

Katie created the company after struggling to find an alternative that delivered meaningful amounts of mushrooms without unnecessary additives, and most importantly tasted good. Drawing from her clinical background and working in her home apothecary (a.k.a. her kitchen!), she developed our signature formulation, m3: my morning mushrooms, with three carefully selected mushrooms—lion’s mane, cordyceps, and tremella—each included at 1 gram per serving. She paired these with supportive superfoods like cacao, maca root, and mesquite to create a powerful, all-natural blend that supports focus, energy, and skin health.

Crystal Fenwick, PhD

In 2025, Crystal Fenwick, PhD, a scientist and engineer, joined the company to help support its growth. After being diagnosed with an autoimmune condition in 2020, Crystal retrained as a health and life coach and began exploring the gut-brain axis, inflammation, and nervous system health, ultimately discovering the health benefits of mushrooms. Like Katie, she found the market lacking, so she began crafting her own blends at home. Daily mushroom supplementation played a key role in helping her regain her health. When the opportunity arose to join Holistic Fungi, the partnership was a natural fit.

Holistic Fungi is committed to integrity, transparency, and sustainability. As a rural-based business, we are also committed to making meaningful change in our local community and aspire to create local employment opportunities for people with disabilities as we grow.

Meet Our Founder

Katie Simons, PharmD, BCPS

Hello All,

Thank you so much for popping in to check out our products. My name is Katie Simons. I am a clinical pharmacist who has focused my professional energy and life journey to the path of holistic healing and the founder of Holistic Fungi.

Our signature product, m3 my morning mushrooms, is a formulation I came up with while tinkering in my home apothecary (aka kitchen). At the time, I was looking for a functional mushroom product with therapeutic doses of specific mushrooms for cognition, focus, energy, and skin complexion. The products available on the market were just not cutting it for me – Everything I found had 500-1000mg total of 5-8 different mushrooms and none of them tasted good! So I decided I would just make my own formulation.

I focused on 3 mushrooms that fulfilled my therapeutic desires, lion’s mane, cordyceps, and tremella, and I ensured I was getting 1 gm of each in every serving. I filled in the formulation with mindful, complementary ingredients that tasted yummy, maca root, mesquite, cacao, and coconut. And Tada! M3 is a product I use to start every day.

I hope you love it as much as I do!

Katie