The big B12 catch-22
Kluck R, Muller S, Jagodzinski C, Hohenfellner K, Buscher A, Kemper MJ, Oh J, Billing H, Thumfart J, Weber LT, Acham-Roschitz B, Arbeiter K, Tonshoff B, Hagenberg M, Kanzelmeyer N, Pavicic L, Haffner D, Zivicnjak M (2022) Body growth, upper arm fat area, and clinical parameters in children with nephropathic cystinosis compared with other pediatric chronic kidney disease entities
Step 1: Read the product label carefully before first use
A comprehensive pre-treatment panel typically includes a Complete Metabolic Panel (CMP) to assess liver and kidney function, a Complete Blood Count (CBC), thyroid function tests (TSH, Free T3, Free T4), fasting glucose and insulin levels, HbA1c, and a lipid panel
Their communication is the best that I have seen from any doctor's office
So the next big question is