NEW! HBO Original The Last of Us High Caf Ground Coffee | Shop Now

We'll reach out when this item is back

All you have to do is enter your email address and you'll automatically receive an alert once this product is restocked.

Best Seller

Gut Health Mushroom Blend

GUT HEALTH IMMUNITY

Support gut and immune health with every sip of this caffeine-free organic mushroom blend.

Pick your product: Gut Health
Pack Size:
30% OFF of first order
20% OFF on recurring orders
Lowest Price Option
Cancel Any Time
+200M Cups of Four Sigmatic Sold
60-day Money Back Guarantee
Refill Ships In 30 Days
How to use & taste
Simply mix into hot water, coffee, tea, or smoothies—earthy and smooth taste.
Benefits
Gut health and immune support in caffeine-free blend
Ingredients
Organic wildcrafted chaga extract Organic cordyceps fruiting body extract Organic lion’s mane extract Organic rose hips Organic yacon juice powder Organic log-grown turkey tail fruiting body extract Heat-resistant probiotics

Frequently Asked Questions

Functional mushrooms like Lion’s Mane, Reishi, and Turkey Tail provide a range of benefits, including immune support, stress relief, and mental clarity. Incorporating them into your daily routine is a natural way to nourish your body, support your mind, and enhance overall well-being.
Yes! Four Sigmatic products are crafted with safety and quality in mind. They are USDA-certified organic, rigorously third-party tested for purity, and free from fillers, heavy metals, and toxins. Functional mushrooms have been used for centuries and are a safe, natural addition to your daily routine.
Absolutely! Four Sigmatic products are USDA-certified organic, made with real mushroom fruiting bodies (not mycelium), and crafted without fillers, gums, and artificial flavors.
Yes! Our products are purchased as a monthly membership, designed to help you build habits that stick. While habits typically form over 30 days, maintaining them consistently leads to lasting change. For those who prefer to try before committing, we’ve designed limited edition one-time Starter Kits: Shop Starter Kits here.

Rest assured, we offer a 60-day Happiness Guarantee. If you want to cancel your Membership or change the delivery date of your upcoming order, you can do so anytime through your Account Page. Remember, consistency is key to achieving both short-term and long-term benefits!
Absolutely! We offer a 60-day money-back guarantee, no questions asked.
Nope! The founder, Tero Isokauppila, is Finnish. Four Sigmatic was founded over 10 years ago and pioneered the mushroom coffee movement. With the support of wellness experts like Tim Ferriss, Dr. Mark Hyman, and others, Four Sigmatic has become the leader in making functional mushrooms a part of everyday routines worldwide.

Add Gut Health In Your Cup

Smooth Digestion

Smooth Digestion

Your digestive system is like a second brain, with 100 million nerve cells linking your brain and gut. So when our digestion runs smoothly, so do our thought processes. Healthy gut, healthy mind.
Immune Support

Immune Support

Functional mushrooms each have their own special benefits. But they are all phenomenal at building a strong immune system. So when everyone around you is sniffling, add these ten to your cup.
Caffeine Free

Caffeine Free

Stay calm and focused with sustained energy—without caffeine.
Enhanced Focus

Enhanced Focus

Whether you are working on one project or trying to power through your to-dos, these genius adaptogens bring the benefits. Every adaptogenic ingredient is chosen to enhance focus.
Tasting Notes Earthy and smooth
Caffeine level Caffeine free
Usage Add 1 scoop to your coffee, tea or smoothie. Try in soup too!
Daily Wellness
Caffeine-Free
Tested For Toxins
Gluten Free
Science-Backed
Certified Organic
Plant-Based
No Filler Mycelium

Science-Backed Ingredients

Organic wildcrafted chaga extract
Organic wildcrafted chaga extract
Meet your ultimate immune system supporter. Packed with antioxidants, this mushroom helps keep your body well. Our chaga’s sustainably wildcrafted on birch trees, just as nature intended. We extract the real chaga (no mycelium, fillers or grains here) to unlock the best of the best benefits.
Immune Support
Organic cordyceps fruiting body extract
Organic cordyceps fruiting body extract
These mighty mushrooms are known for their support of energy and endurance. Our cordyceps are vegan and organically grown with no mycelium or filler grains to ensure the highest level of quality.
Energy
Endurance
Organic lion’s mane extract
Organic lion’s mane extract
This mushroom takes after its name with a fierce brain-powering boost to keep you sharp and energized. We extract our lion’s mane from log-grown fruiting bodies: fully organic, with no fillers, grains or carriers.
Focus
Organic rose hips
Organic rose hips
If you haven’t had rose hips before, they’re delicious, deep red, and perfect little vitamin C bombs. Adding in this natural source of vitamin C helps improve the bioavailability of the functional mushrooms.
Vitamin C
Organic yacon juice powder
Organic yacon juice powder
This powerful Peruvian tuber is prebiotic-rich and supports a healthy microbiome so your gut can do its thing.
Prebiotic Fiber
Organic log-grown turkey tail fruiting body extract
Organic log-grown turkey tail fruiting body extract
This mighty wood-grown mushroom has prebiotics and research to support smooth digestion, one sip at a time. We extract our turkey tail from log-grown fruiting bodies: fully organic, with no fillers, grains or carriers.
Immune Support
Gut Health
Heat-resistant probiotics
Heat-resistant probiotics
The only probiotic we trust in our coffee because these 1 billion CFU of Bacillus subtilis (DE111®) will survive 5 minutes in boiling water, dissolves easily in water and are heavily researched.
Gut Health

Over

200M+

Cups of Four Sigmatic served

& thousands of lives changed

Don't just take our word for it

Formulated to change your day

Subscribe to Four Sigmatic
and Start feeling the benefits

Immediately

Feel-good nourishment from the first sip or bite—deliciously crafted with powerful superfoods.

In a few days

Steady energy, a calm mind, and smoother digestion become part of your daily rhythm.

Immediately

More focus, less stress, and healthier gut—your new favorite ritual that works as hard as you do.

Mushroom Legacy Beyond a Decade

Finnish Funguys

  • Founded by a 13th-gen farmer Tero Isokauppila and team of Finnish Funguys
  • After years of perfecting, Mushroom Coffee was born!
  • From freezing Finland to sunny California, we made the leap
  • Tero’s book 'Healing Mushrooms' became an Amazon bestseller

The Shroom Boom starts

  • Team grows; three offices later, we plant roots in Venice, CA.
  • Mushroom Coffee becomes a sensation. Beloved by podcast giants and a-list celebs
  • Shroom Rooms spore up in Venice, CA, and Soho, NY to serve FREE mushroom coffee
  • Tero’s third book, 'Healing Adaptogens,' is yet another Amazon hit

200 Million Cups Sold

  • Find Mushroom Coffee at thousands of U.S. stores like Whole Foods and Sprouts
  • A #1 bestseller on Amazon, giving the best coffee brands a run for their beans
  • It’s official! We’ve served over +200 million cups of coffee
  • And stay tuned, because there’s so much more brewing...

We'll reach out when this item is back

All you have to do is enter your email address and you'll automatically receive an alert once this product is restocked.

{"statementLink":"","footerHtml":"","hideMobile":false,"hideTrigger":false,"disableBgProcess":false,"language":"en","position":"left","leadColor":"#356648","triggerColor":"#5c5c5c","triggerRadius":"5px","triggerPositionX":"left","triggerPositionY":"bottom","triggerIcon":"wheels","triggerSize":"small","triggerOffsetX":0,"triggerOffsetY":0,"mobile":{"triggerSize":"small","triggerPositionX":"left","triggerPositionY":"bottom","triggerOffsetX":10,"triggerOffsetY":10,"triggerRadius":"50%"}}