CAFFEINE includes coffee, espresso, latté, mocha, black tea, green tea, colas, chocolate, as well as de-caf drinks. All inhibits the breakdown of cyclic AMP. An ↑ in cAMP results in more circulating cAMP; this causes ↑ cyst growth ↑ organ size & ↑ symptoms. Caffeine also ↑ blood pressure which in turn ↑ cyst growth ↓ kidney functioning. Cafestol within coffee, is the most potent cholesterol-elevating compound identified in the human diet.