Can Your Body Stop Absorbing Vitamin D? Understanding the Causes of Malabsorption
                                
                                
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                                    5 min read                                
                            
                                While many assume vitamin D deficiency is solely due to lack of sun or diet, an estimated 42% of U.S. adults are deficient, and for some, the problem is not a lack of intake but a failure to absorb it. Various medical conditions and factors can cause your body to stop absorbing vitamin D effectively.