Does Whey Protein Have an expiry Date?
The majority, if not all whey powders nowadays, will have an expiration date. People have complained of severe stomach upset and other illness from taking out of date powder. This is most likely due to breakdown of the excipients in whey protein powder, such as colourings and flavours. The whey powder itself is usually dated from a couple of years after manufacture and after this, the nutritional values on cannot be guaranteed as still being accurate. For these reasons, the expiry dates should be adhered to. Based on information provided from a representative from Optimum Nutrition, a leading market seller.