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The effects can last about a week to several weeks, varying from person to person

Your body needs it to work properly

Because B12 vitamin is bound to amino acids (found in protein foods) and is only released when certain enzymes and stomach acids are present, its possible to consume enough but still remain somewhat deficient

Gimsing, J.L

Additionally, various types of antibiotics expire at different times, so its important to read the product label carefully and throw away any expired medications

Metformin, though not a GLP-1 agonist, shares the property of reducing stomach acid and interfering with b12 absorption