R1 Plant Protein By Rule 1 Proteins, whether you are a committed vegetarian or simply seeking a temporary abstinence from animal products, R1 Plant Protein is the answer. This 100 percent plant-based formula contains pea, sunflower seed, pumpkin seed, and watermelon seed proteins and provides 20 grams of protein and nine essential amino acids (EAAs) without lactose, cholesterol, or gluten. Additionally, this vegan and paleo-friendly powder is free of artificial flavours and sweeteners, synthetic colours, and prohibited substances, resulting in a clean label and a clean flavour.