Vitamin B12 injections provide a host of benefits, especially for individuals who may have trouble absorbing B12 from food or oral supplements
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Packed with high-quality nutrients, it works to fuel your metabolism, enhance endurance, and keep you energized and focused as you work toward your goals
Last reviewed: July 3, 2026 Last updated: July 3, 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
Dietary sources: It is mostly found in a variety of animal and dairy products such as beef liver, fish, milk, clams, eggs and fortified plant foods
It means physician supervision, appropriate patient selection, and honest conversations about what the evidence does and doesn't support