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The best-tasting keto protein out there

We’ve formulated a delicious keto protein powder that packs in 20 grams of plant-based protein and only 7 grams of net carbs.

90-day money-back guarantee

Keto doesn’t have to suck

KOS vs. Other Proteins

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  • Keto-friendly
  • Low calories and sugar
  • No bloating
  • Great taste
  • Complete multivitamin
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  1. Keto-friendly
  2. Low calories and sugar
  3. No bloating
  4. Great taste
  5. Complete multivitamin

3 ways to enjoy

Mix 2 scoops in 8–10 oz. of cold water or plant milk

Add 2 scoops to your smoothie or shake

Substitute for flour in your favorite baking recipes

Blend it, bake it, BOOM

Whether you’re a chocolate kinda gal or a blueberry-muffin guy, our award-winning flavors are super tasty and versatile. No animal products, no sketchy fillers or additives, and no gritty, chalky texture.
Try KOS now

90-day money-back guarantee

America’s best-tasting protein powder

No whey, dude

And no dairy, soy, or gluten, either. Just organic, high-quality ingredients from responsibly managed farms.

Winner, winner, plants for dinner

Or breakfast, or lunch. Plant proteins are a heart-healthy way to boost energy and help you feel full longer.

Flavor savior

Self, Popular Science, and Women’s Health all agree: KOS is the best-tasting protein powder out there.

200,000+ happy customers and counting

“I do KETO and have been using this as a meal replacement. Blends well and tastes GREAT compared to many other similar products. Great way to get nutrients and proteins when doing any type of dieting. Highly recommend!”

Gregory G.

Gregory G.

“Been on keto diet for 6 months and stopped losing weight. Using this as a meal replacement at lunch has helped me to lose more. Tastes great. Would highly recommend.”

Bee L.

Bee L.

“Great chocolate protein powder! Mixes well and tastes delicious! Perfect if you're following a keto diet or just want to cut carbs. Lower carb, higher protein makes this a great, go-to shake!”

J. Prime

J. Prime

Created by potrace 1.16, written by Peter Selinger 2001-2019

Fuel yourself fast with delicious keto-friendly protein

Our protein is a quick, healthy, and tasty way to get more plants into your diet. Jump on the KOS train and have some good, clean fun with plant power.
Try KOS now

90-day money-back guarantee

Created by potrace 1.16, written by Peter Selinger 2001-2019

Got questions? We’ve got answers!

Are KOS products certified organic?
Nearly every ingredient is certified organic and therefore free of hormones, antibiotics, pesticides, artificial sweeteners, colors, and GMOs. When you check out the ingredient panel of our labels, you’ll see “organic” in front of the specific ingredients that are certified organic.
What if I purchase and don’t like it?
We stand behind the quality of our products and want to make sure our customers are completely satisfied. Your satisfaction is guaranteed for a full 90 days from the date of purchase.
Is KOS tested for heavy metals?
Yes, all KOS products are thoroughly screened for a full spectrum of contaminants, including heavy metals. KOS protein contains more than a dozen ingredients, each of which is subjected to an individual screening—as is the whole of the batch—in both pre- and post-production phases. This full-spectrum screening for contaminants and heavy metals is managed in strict accordance with USDA Organic and CCOF compliance standards.
Where is KOS made?
Our formulas are made in sunny Southern California, and the ingredients are certified by the United States Department of Agriculture (USDA) and California Certified Organic Farmers Association (CCOF).