The Effects of High-dose Vitamin B6 on Depression and Anxiety Symptoms

This study is investigating whether taking a high dose of Vitamin B6 supplements can help reduce symptoms of depression and anxiety. Vitamin B6 plays a role in the brain's calming chemical system (GABA), and researchers want to know if boosting it helps improve mood. **You may be eligible if...** - You are between 18 and 40 years old - You have mild to moderate anxiety and/or depression - You have normal vision or corrected-to-normal vision **You may NOT be eligible if...** - You are already taking a daily supplement containing more than 2 mg of Vitamin B6 - You take a medication that works on the GABA system in the brain (the study team will check this with you) - You are pregnant - You have a history of epilepsy - You have a history of peripheral neuropathy (nerve damage causing tingling or weakness in the hands and feet) - You are taking the antibiotic Seromycin (used for tuberculosis or urinary tract infections) - You have a history of brain injury or a recent concussion Talk to your doctor to see if this trial is right for you.