When you optimize from within with the right B12 form, youre not just correcting a deficiency-youre giving your body the tools it needs for energy production, brain health, and cellular function
The choice between these approaches may depend on individual GI sensitivity and weight loss goals
However, its common for blood tests to reveal inaccurate information regarding B12 levels since a high percentage is stored in the liver and not always revealed through testing (for example, taking large amounts of folic acid has been found to mask vitamin B12 deficiency in some patients)
Others can cause increased absorption, causing side effects or an overdose
Anyway, hydroxocobalamin works great for me, so if you or your brother need to take injections again, do try that instead
Its not a peptide