You are certainly welcome to use whatever form of B12 works well for you
Observational studies have tracked the effects of caloric restriction on lean, healthy individuals, and demonstrated that moderate restriction (2230% decreases in caloric intake from normal levels) improves heart function and reduces markers of inflammation (C-reactive protein, tumor necrosis factor [TNF]), risk factors for cardiovascular disease (LDL cholesterol, triglycerides, blood pressure), and diabetes risk factors (fasting blood glucose, insulin levels)
SELECT (N=17,604, NEJM 2023): 20% cardiovascular risk reduction sustained over 4 years
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