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It can also be depleted by chronic stress, alcohol, smoking, digestive issues, cardiovascular disease, illness, and aging because stomach acid production decreases with age, reducing B12 absorption significantly
(19) Gastric surgeries: If a portion of your stomach has been removed, the body cant produce enough IF, and the amount of space for B12 to be absorbed is also reduced
Typically, individuals who benefit the most from B12 vitamin injections are those experiencing symptoms of B12 deficiency, which can include chronic fatigue, weakness, mood changes, memory issues, or tingling in the hands and feet
Vitamin B12 injections are used to treat low B12 levels when diet or tablets are not enough
What affects whether you notice anything at all: Whether you had a true nutrient deficiency to correct (especially for B12-related fatigue) Your calorie intake, protein, and consistency Sleep, stress, and movement Whether youre also using evidence-based tools (like FDA-indicated GLP-1 options when appropriate) Medical disclaimer This article is for education only and is not medical advice
Insurance coverage for B12 shots: what to know Insurance coverage for B12 shots is limited
