Optimum Nutrition Gold Standard 100% Plant-Based Vanilla 684g. This protein powder is made from 100% vegan ingredients and contains a complete profile of amino acids. It has no artificial colours or flavours and is Vegan Society approved and Informed Choice certified. Each serving contains 24g of plant protein to support muscle growth and repair, 4g of naturally occurring BCAAs, and 4g glutamine & glutamic acid. It is best enjoyed first thing in the morning and/or during the 30 minutes just before or immediately after training. It also provides over 100% of the nutrient reference value of vitamin C and is a source of vitamin B12. Protein contributes to muscle growth and muscle maintenance when used in conjunction with weight resistance training.