What is the best protein source for fitness and sports?

The best choice of protein source for building muscle is, without question, a hot topic in Sport Nutrition. 

Sport scientists, dieticians and nutritionists alike are often posed the following two questions:

1. Do proteins from dairy, meat, and plant sources differ in their capacity to promote muscle growth during resistance exercise training?

2. And if so, which is best?

Before we answer these questions let's discuss the best approach to tackling these questions.

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