Persistent headaches, including at lower doses, are a reason to pause and consult a clinician
Pediatr Nephrol 32:753765 Shahmoon S, Rubinfeld H, Wolf I, Cohen ZR, Hadani M, Shimon I, Rubinek T (2014) The aging suppressor klotho: a potential regulator of growth hormone secretion
J Hum Reprod Sci (2018) 11:108
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Although we regularly measure B12 levels after bariatric surgery by blood tests, these do a poor job of estimating low total body B12 levels, or identifying deficiency
Iron deficency and other nutrient deficiencies can also cause similar symptoms