Vitamin B12 foods for brain and energy are essential for anyone feeling tired, unfocused, or mentally sluggish. Many adults in the U.S. unknowingly face low B12 levels, which can cause fatigue, memory lapses, and mood swings. Including B12-rich foods like clams, liver, fatty fish, eggs, dairy, fortified cereals, and nutritional yeast can restore energy, support nerve health, and enhance cognitive clarity.
