Vitamin B12 deficiency Long-term metformin use can lower B12 levels, leading to fatigue, numbness, tingling in the hands and feet, weakness, pale/yellowish skin, and memory issues
While ingredient-level research on berberine and chromium exists, evidence specific to finished transdermal berberine products may be limited
Key Takeaways Stomach pain on GLP-1s is common and usually temporary Slower digestion is the main cause Smaller meals and hydration make a significant difference High-fat foods can worsen symptoms Dose timing and gradual increases help your body adjust Proper medication storage supports consistent results
Research peptide protocols use much lower doses than pharmaceutical formulations due to variable potency and purity
Do take a vitamin like Nutrafol
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