Adequate intake of iodine, selenium, zinc, vitamin A, and iron is critical for human health and processes like sleep, melatonin, and dopamine production.

“Did you get enough micronutrients? Are you are you deficient in iodine, selenium, zinc, or vitamin A or any of these other nutrients that are critical to human health as you approach your sleep? Did you get enough iron, you know, so that you can actually make the things required for sleep and melatonin and dopamine?”