Established low ranges are often too low, and researchers have found that normal-low B12 levels have been associated with neurological symptoms such as difficulty balancing, memory lapses, depression, mania, fatigue, and even psychosis
These are different from systemic reactions, which sometimes include fever or headaches
In such cases, someone with the MTHFR gene variation may seem to have elevated levels of B12 (as well as elevated levels of homocysteine), but will actually have low levels of B12 in the form that their body can utilize
These compounds are believed to enhance liver function and fat metabolism, aiding in weight loss
For the wider landscape, see our roundups of peptides studied for fat loss, longevity peptides, and popular peptide stacks
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