Dok F the ORIGINAL Corn Coffee (Sara-Sara de Dabaw) Direct from the Manufacturing Plant of Dok Alternatibo – Digos City, Davao del Sur. Corn coffee has a similar taste, aroma, and appearance to caffeinated coffee, but it's not actually coffee. All natural - No caffeine - No side effects - You can drink it everyday Drinking corn coffee can control diabetes, prevent cardiovascular disease, lower hypertension, reduce cholesterol level & minimize the risk of colon cancer.