I use a plant-based protein as I have and allergy to whey,the product is called VEGA (Protein & Greens). I like the vanilla flavor. this product has 20g of protein, 2 servings of greens and 110 calories. It does have 6g of carbs, this is the lowest amount I can find for what I can use with my allergy issues. I have found this product at Costco and on Amazon. Good Luck, hope this helps.