What are the Side Effects of Bovine Adrenal Cortex Supplements?
                                
                                
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                                    4 min read                                
                            
                                According to a 2018 study, many unregulated adrenal support supplements sold online, which may contain bovine adrenal cortex, were found to include undisclosed thyroid hormones and steroids. The side effects of bovine adrenal cortex supplements are a significant concern, given their unverified contents and lack of robust scientific evidence supporting their efficacy.