National Institutes of Health and/or the FDA.
What to expect week by week on the blend Setting realistic expectations prevents frustration and premature discontinuation
In the complex work-up, treatment and management of growth disorders a thorough understanding of the normal physiology of the axis is essential in taking the right actions (130, 131)
36, 13351350.e1338
Normal vital signs (blood pressure, heart rate, respiratory rate, temperature) and body mass index (BMI) between 18 and 30 kg/m 2 Suboptimal vitamin B12 status (deficient to borderline 200300 pg/mL), defined as serum B12 levels within the lower end of the reference range (234894 pg/mL) Able to provide informed written consent Able to comply with study procedures and follow-up visits as outlined in the protocol 2.2.2 Exclusion criteria Known hypersensitivity or allergy to oral vitamin B12 supplements or any of its components Known history of cobalt allergy or sensitivity Severe malabsorption syndromes, including pernicious anemia or intestinal disorders affecting vitamin B12 absorption Current use of acetaminophen, nonsteroidal anti-inflammatory drugs, antibiotics, antacids, proton pump inhibitors (PPIs), multivitamins, or nutritional supplements containing vitamin B12 History of gastric bypass surgery or other procedures that significantly alter GI anatomy or function Significant renal impairment (estimated glomerular filtration rate [eGFR] 0.05) Supplementary Table 1
