Is yogurt a solid or liquid food? The surprising science behind its state
                                
                                
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                                    3 min read                                
                            
                                Though most people think of yogurt as a semi-solid food, it is scientifically characterized as a colloid, specifically a gel. This means yogurt is a complex mixture of solid particles dispersed within a liquid medium, a property that makes it both solid-like and liquid-like simultaneously.