Kos Vegan Protein Review — Surprisingly Nutritious

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Kos is named after the Greek island where Hippocrates was born and the company sells what they call “small-batch, boutique” protein powder that provides the “ambient glow of radiant health.” Kos’s mission help provide a future for the world, since they believe that the world can’t support its growing population based on animal protein. I tried out their Vanilla-flavored protein; here’s what’s in it.

Kos Vegan Protein
Kos Vegan Protein
This meal replacement is nutritious and especially low in allergens, making it useful for a wide variety of consumers.MoreLess

Kos Vegan Protein Nutrition

One serving is two scoops and provides 120 calories: 20 grams of protein, 7 grams of carbohydrates (3 grams of fiber, 2 grams of sugar), and 2.5 grams of fat (no saturated fat).

This is a pretty nutritious protein, containing 40 percent or more of your recommended daily intake of Vitamins A, C, D, several B-vitamins, and iron — the iron content in particular is very notable. However, it’s pretty high in sodium with 18 percent of your daily intake.

Kos Vegan Protein Ingredients

Every ingredient is organic, and the protein blend comes first: pea, flax seed, quinoa, pumpkin seed, and chia.

The other ingredients are mostly flavorings: agave inulin, coconut sugar, vanilla flavor, stevia, monk fruit extract, and what’s called a “natural fruit and vegetable flavor blend.” There’s also acacia gum, which is used as a stabilizer and also goes by the name “gum arabic.”

Finally, there are digestive enzymes: amylase, protease, lipase, lactase, and cellulase.

Kos Vegan Protein Review
Kos Vegan Protein Review

Kos Vegan Protein Benefits & Effectiveness

Let’s talk about these digestive enzymes first. They come from a company called DigeSEB™ and it’s possible that this collection of enzymes helps to break down food and help you absorb their nutrients more effectively.

The proteins themselves are pretty high quality, and while there’s no discussion of amino acid content on the tub — which is disappointing — the combination of pea, quinoa, flax, pumpkin seed, and chia should result in a complete amino acid profile and potentially some plant-based omega-3 fatty acids.

This is unusually nutritious protein powder as well. In addition to the Vitamins A, B, C, and D mentioned above, there are smaller amounts of selenium and manganese. The real standout here is the 40 percent of your daily iron intake per scoop — a particularly tricky RDI to meet for some people on a plant-based diet — but I would have liked to see some Vitamin B12 here as well. There is just 4 percent of your daily intake.

All the ingredients are organic and non-GMO, plus it’s free from soy and gluten. It does, however, contain tree nuts, so folks with allergies may be disappointed.

Kos Vegan Protein Price

You can pick up 2 pounds for $40, which provides 30 servings of two scoops each. That’s $1.33 per serving, or 6.6 cents per gram of protein. On a per gram of protein basis, that’s about middle of the road: organic, naturally sweetened vegan proteins are typically between 5.7 and 7.5 cents.

Kos Vegan Protein Taste

The taste is pretty similar to a lot of vegan protein powders: nutty. It tastes like sacha inchi nut, or de-fatted peanut butter, mixed with oatmeal and a tiny bit of vanilla flavor. While I wasn’t a huge fan of the taste personally, it’s milder than most of its competitors and it mixed very well in water. It doesn’t mix well when shaken with almond milk, but few things mix well with almond milk and in any case Kos recommends using a blender, not a shaker.

The Takeaway

Kos has made a pretty darn interesting protein: it’s nutritious, it’s got digestive enzymes, it has no artificial ingredients, and it’s pretty reasonably priced. I didn’t love everything about it: the taste is so-so, it’s low in B12, it’s high in sodium, and the two-scoop serving size can overwhelm a shake or a bowl of oatmeal. Nonetheless, I’d consider it better than most of its competitors.

Kos Vegan Protein

Per Serving: $1.33












  • Organic and non-GMO
  • No artificial ingredients
  • Contains digestive enzymes
  • Decent price


  • Contains tree nuts
  • Low in B12
  • High in sodium


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Nick is a content producer and journalist with over seven years’ experience reporting on four continents. His first articles about health were on a cholera outbreak in rural Kenya while he was reporting for a French humanitarian organization. His next writing job was covering the nightlife scene in Shanghai. He’s written on a lot of things.After Shanghai, he went on to produce a radio documentary about bodybuilding in Australia before finishing his Master’s degrees in Journalism and International Relations and heading to New York City. Here, he’s been writing on health full time for more than five years for outlets like BarBend, Men's Health, VICE, and Popular Science.No fan of writing in the third person, Nick’s passion for health stems from an interest in self improvement: How do we reach our potential?Questions like these took him through a lot of different areas of health and fitness like gymnastics, vegetarianism, kettlebell training, fasting, CrossFit, Paleo, and so on, until he realized (or decided) that strength training fit best with the ideas of continuous, measurable self improvement.At BarBend his writing focuses a little more on nutrition and long-form content with a heaping dose of strength training. His underlying belief is in the middle path: you don’t have to count every calorie and complete every workout in order to benefit from a healthy lifestyle and a stronger body. Plus, big traps are cool.