Adult male requires approximately 63 grams of protein a day, while women need approximately 50 grams of protein. The amount may be satisfied by consuming 5-6 servings of cereals (rice or bread) and beans, 2-3 meat, or 2 cups of milk. If you consume less than the specified portion, most likely you need additional high-quality proteins like those found in protein powder. Each tablespoon provides 8 grams of protein, protein concentrates.
However, this does not mean you can eat as much as 6-8 tablespoons of protein, because protein is concentrated and is not expected as the sole source of your protein.
If you’re in body building activity you need to consume the best protein powders for the workout purposes.