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Gamma-glutamyl transferase (
GGT) levels may also be increased in certain conditions apart from alcohol intake like
cholestasis which is obstruction in the flow of bile (may be due to
gall stones or some other reasons), some
liver diseases and with certain medications intake. Moreover, measuring the levels of some other liver function tests like AST, ALT would give a better idea.
Such a slight elevation as in your case may not indicate a significant abnormality but should be addressed accordingly.
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