Researchers in Norway studied patients with ADHD (133 adults aged 18-40 with formal diagnoses and 131 adults with symptoms of ADHD but no official diagnoses). Distracting these patients with various stimuli, the researchers managed to draw blood from these 264 patients and check their levels of B vitamins. Seriously, though, most of these patients had low levels of B vitamins, including B2 (riboflavin), B6 (pyridoxine), and B9 (folate).
Pyridoxine, B6, is especially important. If the body is deficient in B6, it cannot make necessary levels of several neurotransmitters, including dopamine, norepinephrine, serotonin, and GABA. Dopamine levels are often out of balance in patients with ADHD; serotonin helps stabilize mood; and GABA helps regulate anxiety. B6 also helps magnesium do its job and steadies levels of glucose in the brain.
B6 improves attention and helps stabilize mood. Not only do we lack B vitamins from our diet, some of us are born with disorders of B6 metabolism, perhaps leading to a diagnosis of ADHD. Luckily, most B vitamins are easily accessible as B-complex supplements in your grocery aisle.