The 5 Best Sources of <br />Plant-Based Protein.<br />These 5 plant-powered sources of protein are amazing!.<br />1. Tofu is not only rich in protein, <br />but also has amino acids that <br />are vital for tissue repair.<br />2. Soy milk has 7 grams <br />of protein per serving, <br />while the same portion <br />of cow’s milk has 8 grams.<br />3. Lentils have double the protein <br />of quinoa, and can be made <br />into burgers!.<br />4. Just two tablespoons of <br />chia seeds provide an <br />impressive 6 grams of protein.<br />5. Peanut butter is not only packed with protein, but with healthy fats!