Bio Whey can be used for many different reasons. When to take it depends largely on the individual, their health condition, their objectives and their lifestyle. For those that get up early for work, we suggest taking Bio Whey in the morning instead of eating a full breakfast later in the morning. For those that are underweight or low in protein, we usually suggest taking Bio Whey for morning or afternoon tea. For those that are using Bio Whey to build muscle, take Bio Whey as you would normally.