✔ 最佳答案
Whey is good, and simply another option for something to consume when your diet needs variation.
Technically all complete proteins help build muscle. Different sources of complete proteins will have different amounts of the amino acids in them, which is why its best to eat a range of different protein foods throughout the day.
I would recommend always eating prior to your work out, and depending on how hard you train eat something afterwards. If you plan your calories out well you can stay well within your calories limits. On your training days, eat more. On rest days eat at least your maintenance amount of calories.