While oral B12 supplements are available, vitamin B12 injections have advantages including enhanced absorption since it bypasses digestion, a fast-acting energy boost from quick absorption, higher blood levels reached versus pills, lasting benefits between maintenance doses, improved concentration and mental clarity, and often more affordable and convenient long-term
However, some individuals may experience mild gastrointestinal discomfort, especially when first starting the supplement
Table 1 summarizes the composition of widely used SCS solutions
Furthermore, significantly elevated branch-chain fatty acids (BCFA), which are metabolic products of protein breakdown have been hypothesized to induce epithelium inflammation (Aguirre et al., 2016)
On the other hand, some people wake from a blood sugar dip