First of all, protein powder can be eaten at night. For people who lack protein, it is ok to eat something in the morning and evening, but try not to eat on an empty stomach. Eating on an empty stomach is as useless as eating steamed bread, and it can't be eaten with acidic drinks, such as orange juice, which will also affect the effect of protein powder.
Secondly, for the fitness crowd, you can take about 30 grams of protein powder half an hour before exercise, and it is also appropriate to take 30 grams of protein powder to supplement your physical strength after exercise, because the demand for protein powder has reached its peak after exercise, and you can also add some glucose appropriately.
One more thing, protein powder can be washed with milk powder, but not with too hot water, otherwise it will destroy the nutritional components of protein powder, make protein powder agglomerate and affect the absorption effect. It is best to take it with warm water of about 40 degrees Celsius. Of course, protein powder should not be eaten in excess, which will burden the kidneys and cause damage to the body.