Deficiency is one of the most common overlooked causes of persistent fatigue especially in metformin users, PPI users, and vegans
Liver enzymes (ALT, AST) Hepatic metabolism in humans is uncharacterized
One article notes that DSIP levels show a diurnal variation and correlate with the bodys circadian rhythms, sleep-wake cycle and circadian rhythms
Potential side effects may include injection-site redness, swelling, bruising, itching, tenderness, small lumps, headache, fatigue, nausea, appetite changes, abdominal discomfort, stool changes, dizziness, altered sleep, mood changes, or feeling off. Allergic or immune reactions are also possible, and the FDA has specifically raised concerns about immunogenicity and peptide-related impurities in compounded BPC-157