My potassium was randomly at 3.3 last nov, so i ate a high potassium diet for 2 weeks and it went up to 4.0 but now its back at 3.4. what causes it to keep dropping? i eat bananas & spinach every day & no diuretics, exercise, diarrhea or vomiting

Low potassium: There are other tests to look for a cause, but just treating a lab finding without other symptoms, isn't advisable. Your potassium is at lower normal range, in absence of symptoms or other apparent cause as medications, I wouldn't be concerned, if still , you may want to see an endocrinologist who may order more tests, a simple one would be spot urine potassium check or other tests, good luck

Low potassium: I agree with Dr. H. If you have high blood pressure a glandular abnormality called hyperaldosteronism is a definite possibility. The endocrinologist will order appropriate tests.

Low potassium: Would consider follow up with nephrologist as the kidney mediates electrolyte ( potassium ,sodium acid) balance .Check magnesium, calcium, aldosterone and thyroid function as well. ,

Low potassium: Continue to eat potassium as you are, but you should probably see a nephrologist as well to rule out some renal issues that can be causing this. Mostly to be aware of cause and be able to stay on top of your levels.