You ran the math. Here is the receipt.
You’re looking for a coffee alternative with the best taste and highest potency - you’ve come to the right place. But how does Rainbo’s Fungki compare to the top competitors? We put Fungki next to the top mushroom coffee alternatives, same serving size, brands anonymized. Here is what the numbers say:
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Competitors anonymized by dose. Competitor 1 includes myceliated grain: per that brand's own label, the mushrooms are grown on grain, and the grain is counted in the listed weight. Fungki is made with 100% organic fruiting body mushrooms.
As Seen In
Same cup. Four very different doses.
Fungki has the most mushrooms, and the cheapest cost per gram: $0.53/g - - $0.40/g on subscription
$66 for 30 servings. 3,000mg of organic fruiting body mushroom per cup. That works out to 73 cents a gram: the highest dose and the lowest price per gram on the chart.
Start a subscription and it drops to $1.20 per cup, or $0.40 per gram of organic fruiting body mushrooms, with free shipping.
And here is what the per-cup price hides. By the gram, the nearest competitor is $0.74 - but they include myceliated grain filler. The rest of the category runs $1.81, $1.89, up to $6.09. One even looks cheap at $0.91 a cup, until you do the math: that is $1.81 a gram, more than triple the cost of Fungki. Fungki is $0.53/g; $0.40/g on subscription. More mushrooms, less money.
The smartest cup is the one that restocks itself.
When it comes to adaptogens, you get the best results with consistent use. Subscribe, and every bag is 25% off with free shipping, delivered on your schedule. That is 55 cents per gram of organic fruiting body functional mushrooms, the lowest price Fungki ever costs. Skip, pause, or cancel anytime, no strings.
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Why Is This Important?
You get the best results from consistent, high doses.
With functional mushrooms, dose and consistency get results. A sprinkle does not move the needle. Real amounts, taken daily, do. The adaptogens in Fungki - Lion's Mane, Reishi, and Cordyceps, are the most effective with consistent use. Here are two trials with female subjects who experienced significant benefits from taking these mushrooms regularly at high doses.
1. Reishi · the stress and mood study
Fungki delivers 1,000mg of Reishi per cup: the exact dose shown effective in this trial.
Two groups of women took 500mg and 1,000mg of Reishi daily for 30 days. The 1,000mg group improved across stress, mood, and overall well-being, with gains in fitness markers like oxygen use and grip strength. The half-dose group improved less, so the benefit tracked the dose.
Go deeper here: Mitra et al., 2024 · International Journal of Medicinal Mushrooms
2. Lion's Mane · the mood study
Fungki delivers 1,000mg of Lion's Mane per cup.
In a 4-week double-blind study, the women who took Lion's Mane daily scored significantly lower on a standard depression scale than the placebo group, and reported feeling less irritable and anxious.
Go deeper: Nagano et al., 2010 · Biomedical Research
3. Cordyceps · the energy and stamina study
Fungki delivers 1,000mg of Cordyceps per cup: the exact dose used in this trial.
In a 12-week double-blind study, healthy adults who took Cordyceps daily raised the point at which their bodies tire, holding a higher, steadier output before fatigue set in. The effect built over the full 12 weeks, exactly the kind of consistent gain Cordyceps is known for.
Go deeper: Chen et al., 2010 · Journal of Alternative and Complementary Medicine
Each result showed up at high, consistent doses of the same mushrooms we put in Fungki. That is exactly why every cup of Fungki delivers 3,000mg of organic fruiting body mushroom: 1,000mg each of Lion's Mane, Reishi, and Cordyceps. The highest dose on the chart, at the lowest price per gram in the category.
Start your Fungki ritual todayRainbo's Fungki vs. The Biggest Competitor
Some brands grow their mushrooms on grain, then count the grain in the dose. Per these brand's own label, the listed weight is mycelium grown on grain, not pure mushrooms. The compounds worth paying for, like hericenones and triterpenoids, are concentrated in the fruiting body, not the grain substrate. Fungki has 100% organic fruiting body mushrooms, dual-extracted, with verified beta-glucans on every batch. The most potent coffee alternative on the market
Best value: Subscribe for 25% off + free shipping. Cancel anytime.
What Fungki's 3,000mg Is
Organic Lion's Mane
1,000mg · Fruiting Body
Keeps your mind clear and your focus sharp. Lion's Mane supports your brain's ability to repair and maintain its own cells, so you stay switched on through the day.
Organic Reishi
1,000mg · Fruiting Body
Calms the system. Reishi helps your body settle and stay steady when the day starts piling up.
Organic Cordyceps
1,000mg · Fruiting Body
Steady, caffeine-free energy. Cordyceps supports your body's own energy production, for stamina that builds with use instead of a spike and a crash.
Organic Chicory Root
Prebiotic gut support. Chicory feeds the good bacteria in your gut and gives the cup its deep, roasted, coffee-style base.
Mesquite · Ceylon Cinnamon · Vanilla
Naturally sweet, warm, and roasted, with notes of caramel and cinnamon. No sugar added.
Pink Himalayan Salt
A pinch of minerals to round out the flavour and help with hydration.
What people are saying…
50,000+ Orders from Happy Customers
I've been looking for this
"I swapped my afternoon coffee for this. Steadier focus, none of the wired feeling."
Haleigh R.
Verified Buyer
Best tasting by far!
"Caffeine-free, but I am not dragging at 3pm anymore. Roasty and a little caramel taste - its a functional treat."
Jarret C.
Verified Buyer
Simply the best !!!
This is absolutely the best stuff ever!!! I have tried other types of mushrooms. However I keep coming back to Rainbo.
Denise R.
Verified Buyer
Love Love Loveee
So happy to have added this to my daily routine. Really great for my energy levels throughout the day and it has helped me maintain my nervous system regulation :) Love!
Bisma M.
Verified Buyer
Simply the best !!!
"My gut is happier and my head is clearer. I drink it every afternoon now."
Denise R.
Verified Buyer
Your ritual starts here
A daily ritual with a dose that actually has an impact, at a price per gram no competitors can beat, and 25% off when it restocks itself. You already saw the math. Taste and feel the difference.
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Vegan
Non GMO
B-Corp Certified
Climate Neutral
Fruiting Body Mushroom
Made in Canada
100% Traceable
Third Party Tested





