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Some of the most common side effects include nausea, vomiting, and diarrhea

Why people use it: Proponents claim it may speed up postworkout recovery, reduce acute inflammation, improve athletic performance, help you heal faster from an injury or surgery, treat inflammatory bowel issues or other gastrointestinal (GI) symptoms, or even cure a hangover

* A plan tailored by doctors

The skin where the hair is missing usually looks smooth and healthy, with no rash or flaking

However, there is no universal schedule

Iron deficiency can result from inadequate dietary intake, poor absorption, or increased iron requirements during pregnancy or growth