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A Closer Look at B12 Injections for Mood Support As daylight hours shorten during fall and winter months, many people experience the combination of depressed mood, fatigue, and diminished interest in activities called seasonal affective disorder (SAD)
Side effects are rare but can include mild discomfort at the injection site
While oral B12 is widely available, its not always the most effective, especially for individuals with absorption issues (like those with digestive disorders or older adults)
Ethics declarations Competing interests SJW is the founder of Ridgeline Therapeutics, HN is a paid employee of Ridgeline Therapeutics and, since manuscript submission, ADW has also become a paid employee of Ridgeline Therapeutics