Green tea has a small amount of caffeine in it, so it might be a great coffee replacement. Depending on what you put into your coffee could be affecting your stomach as well. I used to get sick after drinking coffee but I would put creamer and sugar into it. So, I started to reduce the amount of sugar and milk that I put into my coffee. Doing this seemed to help, and nowadays I drink my coffee black with some Agave in it.







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