10 Unexpected Metformin Side Effects Few Patients Expect to Notice After Long-Term Use

 9. A Persistent Metallic or Bitter Taste
You may notice it first with coffee or water a faint metallic tang from metformin side effects that toothpaste does not erase. This taste change reported by some long-term users of metformin side effects can reduce appetite or alter food enjoyment over time leaving you annoyed that meals no longer bring pleasure. Many people assume it is dental or age-related yet once noticed it is hard to un-notice the frustration from metformin side effects.

And wait because appetite changes from metformin side effects do not always move in one direction.