Dietary protein is essential for life and can come from different sources.  Why Are Plant-Based Proteins Becoming More Popular? Saturated fat levels are high in processed beef and red meat. Gluten intolerances Increased acceptance of vegetarianism or veganism as a lifestyle Plant-based protein has derived from a variety of sources, including peas, rice, and hemp. Although, Athletes aren't the only ones that want to use high-quality protein powders.  Vegetarians and vegans are also looking for viable protein sources. Of course,text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.