I appreciate caffeine, but coffee and I don't get along - it upsets my stomach. Tea works well. Most of my caffeine comes from Monster Zero Sunrise at the mome

I appreciate caffeine, but coffee and I don't get along - it upsets my stomach. Tea works well. Most of my caffeine comes from Monster Zero Sunrise at the moment. It's very low carb (~2g net per can) and is fairly inexpensive on Amazon.