What is the liquid on top of protein yogurt?
                                
                                
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                                    3 min read                                
                            
                                According to food scientists, the clear, watery layer that often pools on the surface of your yogurt is called whey. This is a completely natural and safe occurrence, especially in protein yogurt, and is caused by a scientific process known as syneresis. It contains valuable nutrients and should not be poured out.