Is grass-fed beef truly grass-fed?
                                
                                
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                                    4 min read                                
                            
                                Over 70% of beef marketed as 'grass-fed' in the U.S. may not be entirely grass-fed, as lax regulations allow for grain supplementation. The question, 'Is grass-fed beef truly grass-fed?' requires a deeper look at the confusing terminology and certification standards.