Choose coffee made from real coffee beans, not lab-made coffee! For those of you who love coffee, choose coffee made from real coffee beans that you can process yourself at home. Try to find out the origin of the coffee beans and how they are grown. Avoid adding synthetic sugar, artificial syrups, creams or other sweeteners. Enjoy coffee in its simplest form, and limit your consumption to just one cup of coffee a day. It is best to drink it only in the afternoon or late afternoon. Note: excessive and too frequent coffee consumption can actually cause palpitations, anxiety, GERD, stomach problems and sleep difficulties.