Coffee also interferes with the absorption of essential minerals such as iron, magnesium, calcium, and B vitamins. These nutrients are crucial for healthy bones, strong nerves, and overall energy balance. Regularly starting your day with coffee before food can gradually deplete these reserves.

Another downside is its effect on digestion. Coffee stimulates the colon, which may cause diarrhea or stomach upset. For those who add milk or cream, symptoms can worsen if they are lactose intolerant.

Caffeine has a strong impact on the nervous system. Since stress hormone levels are already high in the morning, an early coffee may