1 doctor weighed in:

What would you say are more permanent side effects of too much caffeine?

1 doctor weighed in
Dr. Kevin Considine
Family Medicine

In brief: Varies

Most side effects are temporary if one stops, these are usually insomnia, jitteriness, palpitations, nervousness, hyperactivity and diarrhea.
But oftentimes if one has been a heavy caffeine user then one would probably get significant withdrawal symptoms like irritability, and headaches as well as fatigue--usually this last about 1-2 weeks then fades.

In brief: Varies

Most side effects are temporary if one stops, these are usually insomnia, jitteriness, palpitations, nervousness, hyperactivity and diarrhea.
But oftentimes if one has been a heavy caffeine user then one would probably get significant withdrawal symptoms like irritability, and headaches as well as fatigue--usually this last about 1-2 weeks then fades.
Dr. Kevin Considine
Dr. Kevin Considine
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