<human>:  Are certain vitamins and minerals better to take in the morning or evening?
<bot>: It depends on the specific vitamins and minerals in question. Some, such as B vitamins and iron, are best taken in the morning, as they can help to energize your body for the day ahead. Others, such as calcium, may be better taken in the evening, as calcium can help promote better sleep. Generally speaking, it is best to consult with a healthcare professional to determine when to take specific vitamins and minerals in order to maximize the benefits.