The body responds with localized inflammation
Clinical Research Findings In a comprehensive safety analysis published in 2013, researchers evaluated data from six randomized controlled trials spanning five years and involving approximately 900 adult participants
Increased risk of diarrhea-predominant irritable bowel syndrome (IBS-D) Increased insulin resistance and glucose intolerance, contributing to elevated blood glucose Poor wound healing, altered taste and smell, and changes in cognitive function, particularly in older adults How common is zinc deficiency
If you have a temporary deficiency or increased requirement (say, after a surgery or during recovery from an acute illness), you might only need a short course, perhaps a few weeks of injections, until your vitamin levels normalize or you can meet your needs by mouth again
As usual, the truth lives somewhere in the middle