The Fundamental Relationship Between Fat and Oil
                                
                                
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                                    4 min read                                
                            
                                Over 95% of lipids in the human diet are triglycerides, which are what we commonly refer to as fats and oils. The core relationship between fat and oil is that both are types of lipids, but their physical state at room temperature—solid for fats and liquid for oils—is determined by their chemical structure.