Vitamin B12 produces 2 documented subjective effects across 1 categories.
Full Vitamin B12 profileCobalamin (B12) supplementation produces no dramatic acute effects in non-deficient individuals. In those with deficiency, which is common in older adults and those on plant-based diets, repletion can produce a noticeable improvement in energy levels, mental clarity, and mood over days to weeks. The characteristic B12-deficiency fatigue lifts. Cognitive fog clears. Tingling or numbness in the extremities from neurological damage may gradually improve. The experience is one of restoration to normal function.
A persistent state of low mood, emotional numbness, hopelessness, and diminished interest or pleasure in activities, often occurring during comedowns, withdrawal, or as a prolonged after-effect of substance use.
PsychosisPsychosis is a serious psychiatric state involving a fundamental break from consensus reality — characterized by firmly held false beliefs (delusions), perception of things that are not there (hallucinations), disorganized thought and speech, and a loss of the ability to distinguish internal mental events from external reality.
Vitamin B12 produces 2 cognitive effects including depression, psychosis.