The Best Adding Premier Protein To Coffee : Pros, Cons, How Much It Costs. Khan explains that adding whey protein powder to coffee offers a host of health benefits, from improved cognitive function and insulin sensitivity to better heart health,. Then transfer the mixture to a small saucepan and heat it over low heat, stirring constantly.
Use a handheld blender instead. In the case of protein, this effect occurs partly because protein is filling, which may reduce how much. The heat from the coffee allows the protein to denature just enough to digest.