Understanding What Vitamin Deficiency Causes Pedal Edema
                                
                                
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                                    6 min read                                
                            
                                According to the World Health Organization, thiamine (Vitamin B1) deficiency, especially a severe form known as wet beriberi, is a known but often overlooked cause of pedal edema. This can cause fluid accumulation in the legs and feet, a symptom that can be a signal of nutritional deficiencies needing attention.