Despite what some people may think, there are many ways to get enough protein on a vegan or vegetarian diet.
However, not all plant-based proteins are complete proteins, meaning protein sources that contain adequate amounts of all nine essential amino acids.
At a conference in 2012, Luc van Loon was presenting some exciting data from a newly published study. After a heroic research effort that took 2.5 years and 500,000 euros, he and his colleagues had managed to shepherd a large group of frail, elderly subjects through a six-month strength-training program. Those who had taken a daily protein supplement managed to pack on an impressive 2.9 pounds of new muscle. Success! Old people could be strong!