What are you trying to accomplish? Normally protein drinks are a supplement and not made to be "meal replacement". I'm no dietician but typically protein drinks don't have a bunch of nutrients.
As brice1967 stated protein drinks are to be used as a supplement! Not as a meal!!
If your having a protein drink that is cosidered a meal replacement you will be able to skip a meal or two. Really depends what type of protein your taking.
Common high-protein foods contain a lot of minerals and vitamins you need, while protein powder does not. It also does not contain fiber, so it may make you constipated.
They are high in calories and can replace a meal containing the amount of protein found in fish or soy and many other meats. The protein however is chemically and artificially made which means it can sometimes
Not be absorbed correctly and lay away in tissue. In a similar way to artificially made vitamins and pesticides in our foods. I would eat a real meal. My brother took protein shakes and whey protein. He gained a disgusting amount of weight and his face got swollen with fat. This was because he did not work out while taking them