What are the symptoms of lack of arginine in adults?
                                
                                
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                                    3 min read                                
                            
                                According to research, a deficiency in the semi-essential amino acid L-arginine can lead to a reduction in nitric oxide production, which is crucial for blood vessel function. This deficiency can manifest in various ways, but what are the symptoms of lack of arginine in adults, and how can they be identified?.