Undissolved protein aggregates. Large, dense particles hydrate on the outside and stay dry in the middle, so they sit on the tongue as grit.
Mix with favorite milk, make a protein shake, put it in yogurt or coffee, bake with, and add to anything to make it protein rich and gut healthy. Blend or shake well.
Our flavors do not include any natural or artificial flavors, and the same goes for artificial sweeteners. Vanilla is sweet like a milkshake, and chocolate is deep and rich.
Our bags and the scoop inside of them are 100% plastic free and compostable. Compost them instead of throwing them in the trash bin. Do not recycle.
Cultured Protein
Fermented grass-fed whey with collagen, MCT, and prebiotic fiber. A full-system protein, grown regeneratively and packed in a bag you can compost.
- ✓ Complete Protein for Longevity
- ✓ Replaces 6+ Supplements
- ✓ Performance and Recovery
- ✓ Gut Health
- ✓ Zero Plastic
All of Our Ingredients
No "Flavors", natural or artificial. Only whole food sourced ethically.
Grass-fed Whey Fermented with prebiotics and cultures. Higher absorption, plus gut benefits.
Pasture-raised and grass-fed collagen uses hydrolysis, which breaks down proteins similar to fermentation.
C8 and C10 fats from organic coconuts that provide clean, usable energy.
Sap of the acacia tree, and one of the best-tolerated prebiotic fibers.
Has phospholipids for your brain and helps the system mix with liquids.
Organic, grown with practices that rebuild soil and keep more nutrients in the bean.
Zero glycemic index, without the gut disruption linked to other sweeteners.
Real bean ground whole that retains properties, not the “natural flavor” line that can legally cover almost anything.
Zero glycemic index, without the gut disruption linked to other sweeteners.
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet.
How it gets made
Grass-fed dairy cows that graze in the Netherlands provide the milk for the whey.
The whey is fermented with prebiotics and cultures from lactic acid bacteria to pre-digest proteins and create bioactives.
Dried and combined with whole food and regenerative ingredients that all work together, and packed without plastic.
All the benefits in one scoop
You already use protein powder, might as well get more out of it.
Muscle
Fermented grass-fed whey · 20g ProteinA complete protein with all of the essential amino acids, plus increased absorption due to fermentation so your body can actually use everything it is given.
US vs. others
Every protein brand talks big. Here is the actual side-by-side on fermentation, gut support, sourcing, and packaging, the four places most powders cut corners.
We took the chalk out of protein powder.
We looked it up. The biggest complaints across the internet about protein powder have always been about the chalky, gritty texture that no one can seem to be able to solve. Well, we used science and fermentation to solve it.
Fermentation breaks the long peptide chains down before the powder reaches you. Smaller peptides hydrate fully in seconds instead of clumping.
Our protein powder does not contain any grit or chalk. It dissolves in about ten seconds in a shaker, with water or milk, and drinks smooth all the way to the last sip.
One holistic serving instead of six less effective products
Our ingredients are synergistic with each other, meaning the system as a whole works together to create holistic health rather than individual benefits that do not compound with each other.
Comparison uses prices for single-ingredient products of similar quality. For example, we compare against grass-fed whey, not regular whey, since ours is grass-fed.
What our study found
Fermented whey with prebiotic GOS was measured in a 3-week study.
View the study resultsof Athletes and high-performers experience gut health problems related to performance stressors
of participants self-reported improved satisfaction with their physical well-being, performance, and recovery
Of participants reported steadier daily energy without a post-shake crash
saw significantly reduced bloating
Study Testimonials
Our testimonials come from actual research study participants
"I feel less sleepy and more energized in the mornings, and I haven't had a stomach ache."
"I have been performing very well in all my recent activities, and I've had great recovering too."
"Less Bloating."
Frequently asked questions
Fermented whey is grass-fed whey protein cultured with lactic acid bacteria and a prebiotic fiber called GOS before it is dried. The cultures break long protein chains into smaller peptides and produce postbiotics along the way. You get a complete protein that is easier to digest, plus gut-health compounds regular whey does not have.
Chocolate is deep and rich, made with regenerative organic cocoa. Vanilla tastes like a milkshake, made with real organic vanilla bean. Both are sweetened only with monk fruit, with no natural or artificial flavors and no sugar alcohols. Unflavored has nothing added, so it disappears into coffee, oats, smoothies and baking.
The usual causes are lactose, sugar alcohols, gums and thickeners, and large protein particles that digest slowly. Cultured Protein leaves out sugar alcohols, gums and artificial sweeteners, and fermentation pre-digests the whey into smaller peptides. In our study, 60% of participants reported significantly reduced bloating.
It was built for people whose stomachs react to protein powder. Fermentation pre-digests the whey, the 5g of acacia fiber is one of the gentlest prebiotic fibers, and there are no gums, sugar alcohols or artificial sweeteners.
Fermentation cultures feed on lactose, so fermented dairy usually carries less of it than the milk it came from. Cultured Protein is still a dairy product and is not labelled lactose-free. If you are sensitive, start with half a scoop and see how you feel. If you have a milk allergy, do not take it.
Probiotics are live bacteria. Prebiotics are the fiber that feeds them. Postbiotics are what that fermentation produces, the compounds your gut and immune system actually respond to. Most protein powders contain none, because the whey is never fermented. Ours is fermented with prebiotic GOS, so the postbiotics come built in.
Standard whey is neutral at best for the gut, and for many people it causes bloating. Fermented whey is different: it brings prebiotic GOS, postbiotics and pre-digested peptides, and Cultured Protein adds 5g of organic acacia fiber, one of the best-tolerated prebiotic fibers. Protein and gut support come in the same scoop.
Grit comes from large protein clumps that hydrate on the outside and stay dry in the middle. Fermentation breaks the protein into smaller peptides before it reaches you, so it dissolves fully in about ten seconds in a shaker, with water or milk, and stays smooth to the last sip.
20g of complete protein from fermented grass-fed whey and collagen peptides, 5g of fiber, MCTs from organic coconut, sunflower lecithin, and 0g of added sugar, at 130 calories. It covers what most people buy as separate products: protein, collagen, MCT, a prebiotic and a postbiotic.
Shake one scoop into 8–10 oz of water or milk for about ten seconds. Most people take it after training or as a morning shake, since the MCTs and fiber keep you full. It also stirs into coffee, yogurt and oats, and you can bake with it.
Organic sets limits on what goes onto a field. Regenerative farming goes further and rebuilds the soil: more organic matter, more carbon stored in the ground, more biodiversity. The cocoa in our Chocolate flavor is grown this way, and it is fair trade.
Yes. Cultured Protein is tested for heavy metals.
Yes. The bag and the scoop inside it contain no plastic and are compostable, including in a home compost. Please compost them rather than recycling them. We pay close to $3 a bag for this packaging, against about 10 cents for plastic.
Yes, any time from your account, with no phone call. Skip a delivery, change flavor, or change how often it arrives.
