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Vitamin B12 also may be involved in maintaining sulfhydryl (SH) groups in the reduced form required by many SH-activated enzyme systems
doi: 10.1111/jvp.13002, 53
However, if factors such as the prescribed medications are negatively impacting B12 status then the frequency may well need to be increased to either 6-monthly or 3-monthly
Patients often start with an intensive "loading phase," which can mean daily or every-other-day injections for a week, then weekly shots for a month
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
Common injection areas include the abdomen , upper arm , and outer thigh (rotate sites regularly)
