Top Vegan and Vegetarian Protein Powders Protein powder supplements the most convenient way to increase your daily protein intake. Most are derived from milk, but there are other choices available that use alternative sources. See my article: Do I Need Protein Powder to build Muscle? What is a Vegan Protein Powder? Vegan and vegetarian protein powders use plant based sources instead of animal sources such as milk, eggs or beef. Common plant protein sources are soy, peas, rice, hemp, alfalfa,…