ONE Plant Protein Bars With flavours like Chocolate Peanut Butter and Banana Nut Bread, these ONE Plant Protein Bars ($28 for 12 bars) won't let you down. They taste like a candy bar, yet they only have one gram of sugar. A 175-calorie bar offers 12 grams of plant-based protein. Image Source: amazon.com ONE Plant Protein Bars $28 from amazon.com Buy Now