Turns out, our tasters like to have their cake and drink it, too. KOS Organic Chocolate Plant Protein Powder "tastes like chocolate cake mix in liquid form," writes Brian, our director of people ...

4. KOS Organic Plant-Based Protein Powder KOS protein powder is sourced from pea, flax seed, quinoa, pumpkin seed, chia seed. It contains 9 grams of carbs and 20 grams of protein per serving.