Time to cut back on caffeine?

By Mayo Clinic Staff

That morning cup of coffee or early afternoon soda is probably OK. But more than 400 milligrams of caffeine a day, or more than about four cups of coffee, can cause restlessness, anxiety, headaches and other problems. Know how much caffeine is in your diet. You may be getting more than you think. To cut back, replace caffeinated drinks with decaf ones.

May. 20, 2014 See more In-depth