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doi: 10.1038/s41598-018-26882-8 6 CuiYYangDWangWZhangLLiuHMaSet al

Preliminary studies suggest that it can ameliorate the decline of energy metabolism in elderly individuals, showing antiaging potential

In fact, studies show that for those who are deficient in the nutrient, taking up to 2,000 micrograms per day is safe

Last reviewed: May 31, 2026 Last updated: May 31, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations

Step-by-Step Guide for Administering B12 Injections Administering B12 injections properly is essential for effective treatment and patient safety