Review Summary

Four Sigmatic Plant-based protein review

Four Sigmatic is a leader in creating sustainable products. They are probably most well known for their Mushroom Coffee but their plant protein mixes are just as great!

I have always preferred plant-based protein powders and shakes. Whey protein just always made my stomach keep uncomfortable.

In this article I will share my honest review of Four Sigmatic Protein.

Four Sigmatic is known for it's mushroom blend coffee, they also have a mushroom blend cacao mix and other blends!

What is Four Sigmatic protein?

Peanut Butter Flavor

Let’s start with the basics. Four Sigmatic protein mixes are vegan (plant protein) and include amazing ingredients that you won’t find in many other protein blends.

Ingredients include:
Vegan Protein (18g per serving)
The plant based protein comes from “organic peas grown in the USA, organic hemp and pumpkin seeds picked in Europe, organic chia from South America, and organic coconuts harvested in Southeast Asia.”

Organic Chaga Mushroom (200mg per serving)
Organic Reishi Mushroom (200mg per serving)
Organic Cordyceps Mushroom (200mg per serving)
Organic Lion’s Mane Mushroom (200mg per serving)
Organic Turkey Tail Mushroom (200mg per serving)
Organic Ashwagandha (250mg per serving)
Organic Eleuthero (250 mg per serving)

Other indents in the Peanut Butter protein blend include: Organic Peanut Flour, Organic Coconut Palm Sugar, Organic Yacon Juice Powder, Pink Himalayan Salt, Organic Cinnamon, Organic Monk Fruit Extract.

The exact ingredients in the Sweet Vanilla and Creamy Cocoa protein will vary and you can reference the Four Sigmatic product pages for details.

Does NOT include
Artificial flavors
Other fillers


The vegan protein flavors include:
Peanut Butter

I only tired the Peanut Butter Protein so far, but with how devious it is, I bet the Vanilla and Chocolate are just as good and maybe even better!  

How to use Four Sigmatic protein?

How you make your protein shakes is up to you but here are some options:

- Blend in a smoothie
- Shake it in a shaker bottle

My experience

Peanut butter + banana = Love

My favorite recipe for using the Four Sigmatic Peanut Butter protein is this smoothie recipe:

1 serving of peanut butter protein
1.5 cups of organic unsweetened vanilla almond milk
1 banana
1 cup of ice

Blend and enjoy!

Where to buy and price?

The best place to order these protein mixes is directly from the brand through their official website: The have a easy and secure checkout and ordering.

You can save 20% if you sign up for the “Subscribe & Save” option. A few perks of this is 20% off and free US shipping.

The protein comes in these flavor options:
Creamy Cocao
Sweet Vanilla
Peanut Butter

The exciting news is that they offer a Protein Sampler that includes all three flavors for $120 or only $96 is you sign up for “Subscribe & Save” . Each of the three boxes in the Sampler include 10 packets for a total of 30 servings.

You can also buy each flavor individually in Packets. The protein packets come in 10 servings.  

Otherwise the Protein Cans are only $50 or  $35 with “Subscribe and Save”.  These include 15 servings.

Final Thoughts

Finding plant protein that is vegan, organic, delicious, and sustainably made is hard!

Share your comments & questions!


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