I LOVE coffee. I have always LOVED coffee. The Paleo diet and the autoimmune diet and PWCFS all recommend ditching coffee. By experimenting with it over the last half year, I have found it to be a double edge sword.
I managed to switch to tea last year. Then my kid moved back in and he is a coffee addict. I started with small single cups. Now I am drinking 3+ cups a day. I have noticed a couple of things.
My blood sugar tends to crash a few hours after drinking the stuff. However, it clears the CFS cobwebs out of my head and lets me function more normally for a few hours and occasionally the entire day.
I think I have figured out the blood sugar crash thing: caffeine is an appetite suppressant If I drink coffee before I eat anything, then I'm not hungry for a long time or I only eat small amounts of food. For me this is bad, since a few hours later my blood sugar will nosedive from lack of food. This leads to all sorts of nasty side effects including but not limited to nausea and a nasty case of the grumpies.
Ideally, if I had any willpower I would switch back to tea. But, that isn't going to happen. I LOVE coffee. So here is my compromise. I will continue to drink coffee however I must be mindful to eat as well. I must have a large protein heavy breakfast preferably prior to the cup of coffee. I think I have to treat coffee as the dessert course to my meal instead of the traditional starter course.