How unhealthy is instant coffee?
Both instant coffee and regular brewed coffee have some health benefits. But instant coffee has lower amounts of antioxidants and caffeine than regular coffee. It also has a higher amount of acrylamide, a potential carcinogen. But it’s still considered a very small amount. Even though it has slightly less caffeine than regular brewed coffee, instant coffee still contains a stimulant. Excess intake can cause symptoms in sensitive people: jitteriness, anxiety, restlessness, heart palpitations, headaches, or digestive upset.