At Modern Medicine, we believe in treating the whole person
* The word microgram (mcg), is sometimes written with the Greek symbol followed by the letter g (g)
That means placing an emphasis on nutrition and the ways vitamins and nutrients affect everything in the body
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B12 injections tend to be most useful for: Patients on GLP-1 medications (semaglutide, tirzepatide) who feel fatigue in early weeks Patients with low energy, brain fog, or mood symptoms Vegetarians or vegans (plant foods don't contain B12) Adults over 50 (B12 absorption drops with age) Patients who've had digestive surgeries (bariatric, gallbladder) that affect absorption They're generally safe B12 is water-soluble, so your body excretes what it doesn't use
It bypasses digestive breakdown and can improve the bioavailability of certain compounds