What Happens if Beriberi Is Untreated? A Guide to the Consequences
                                
                                
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                                    4 min read                                
                            
                                According to the World Health Organization, thiamine deficiency can develop within just 2 to 3 months of inadequate intake, highlighting the rapid progression of this vitamin shortfall. Left untreated, beriberi can lead to a cascade of life-threatening health consequences, from permanent nerve damage to irreversible heart failure, with severity increasing over time.