Long-term use of some medications, such as proton-pump inhibitors and statins, may lead to deficiencies of certain nutrients in the body. Deficiencies may occur because a medication interferes with the body’s ability to absorb a nutrient from dietary sources, or because a medication interferes with natural processes needed to produce nutrients. Medications may cause deficiencies of several nutrients at a time. Symptoms of deficiency may not be obvious. Doctors must supervise diagnosis and treatment of deficiency, sometimes by ordering tests to check nutrient levels in the body.
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