b12 injection and coronavirus covid vaccine vitamin is b12 injection good Should I Mix and Match My COVID-19 Booster Shot? Ethan Swanson, PharmD | Pharmacist

While most men tolerate B12 well, those with Lebers disease (a rare genetic eye disorder) should avoid injections, as high doses of B12 may worsen symptoms

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When stored at 2 to 8 degrees Celsius (36 to 46 degrees Fahrenheit) , they remain potent until the printed expiration date, which is usually about 24 months from manufacture

doi:10.1073/pnas.0308082100

"2013 AHA/ACC/TOS guideline for the management of overweight and obesity in adults: A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and The Obesity Society (in Eng)

It suppresses your appetite but also gives you energy