If you are trying to add muscle too, remember that your body doesn't store protein well, you cant just have a big steak at dinner and call that your daily protein. (scoobysworkshop.com)
If you do purchase any of these be sure to store the protein in the refrigerator after opening to keep its freshness! (exploringhealthyfoods.com)
Protein is special, because unlike carbohydrates or fats, the body can't store protein as protein. (simplemedicine.co)