Vitamin B12 in a daytime gummy that may be able to help you feel relaxed on one hand and energized without jitters on the other. Vitamin B12 is an essential nutrient that is important for red blood cell formation, cell metabolism, DNA production, and nerve function. It’s essential, which means the human body requires it, but it only occurs naturally in meat, fish, and dairy products, which means vegans sometimes have a hard time obtaining enough of it.

What else is Vitamin B12 good for, though? It plays a role in serotonin production, so some studies suggest it may help support dealing with depression, as well as reduce risk of macular degeneration (an eye disease), and support overall brain health. One study, which focused on Vitamin B12 in relationship with concentration and memory performance, found that lower concentrations of the vitamin were associated with poorer memory performance.