Good job getting started!
You want to stay away from taking the capsules due to the casings being gelatin which needs to digest, and since the whole point of fasting is to give the digestive system a rest, avoid using them. I ended up opening them up to use the pepper.

As for the fresh peppers. Hmmm... not really sure, but it seems like if you could juice them some how and use that it would be good. But I'm not really sure. I'm guessing you can tolerate a lot of heat? So maybe experiment with the juice in the lemonade to see how much seems right.