To understand why this peptide does not affect hunger, cortisol, or eating behavior, it is essential to examine where and how it acts within the bodys metabolic pathways
When to see a doctor
It could point to several things: A different cause: your fatigue might stem from thyroid problems, iron deficiency, or sleep apnea rather than B12
The NHS symptoms list groups them into general anaemia symptoms (tiredness, breathlessness, headaches, loss of appetite, weight loss) and neurological signs (peripheral neuropathy, balance problems, depression, memory and concentration changes, sometimes mood changes or psychosis in advanced cases)
Because of this and the fact that the body only needs a small amount of vitamin B12 each day, it can take up to a year or even longer for an inadequate vitamin B12 to manifest as an apparent deficiency
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