Here are just a few key functions of B12: Supports red blood cell formation and oxygen transport Helps maintain nerve function and brain health Plays a role in mood regulation and focus Supports energy metabolism and fat/protein breakdown When your body doesnt get enough, symptoms like fatigue, brain fog, irritability, and weakened immunity often show up
The limitations of this work are that we included RCTs, non-RCTs, and observational studies, which may lower the overall quality of evidence of the included studies
Sadly, doctors will often stop treatment when B12 levels look high
I would work really hard to get them up to 16 g/l, then I would get my period and they would be 12 g/l
Some of the best sources include leafy green vegetables, beans, dairy products, and meat
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