According to USDA Agricultural Research Service data based on NHANES, approximately 6% of adults aged 60 and older in the United States are vitamin B12 deficient, defined as plasma B12 below 148 pmol/L (2009)
However, if you have a significant deficiency, certain digestive conditions, or issues with nutrient absorption, oral supplements might not be effective enough
For individuals experiencing chronic fatigue or low energy, evaluating B12 deficiency can be a crucial step
Fortified foods vary from country to country, but often include milk alternatives or breakfast cereals
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For researchers who want to understand the current landscape of purchasing retatrutide or purchasing cagrilintide for research purposes, both compounds are available through various research peptide suppliers, though quality and purity vary significantly between vendors