Caffeinated drink Caffeinated drink A caffeinated drink, or caffeinated beverage, is a drink that contains caffeine, a stimulant that is legal and popular in most developed countries. The most common naturally caffeinated beverages are coffee and tea, which in one form or another (usually served hot, but sometimes iced) feature in most world cultures. Other drinks are artificially caffeinated as part of their production process. These include certain soft drinks (primarily cola drinks), and also energy drinks designed as a stimulant, and to perpetuate activity at times when the user might ordinarily be asleep. The consumption of caffeinated drinks is often intended
A-type proanthocyanidin epithelial cells, whereas B-type proanthocyanidins from grape exhibited minor activity. However, in humans, there is no sufficient clinical evidence that cranberry type-A proanthocyanidins are effective in lowering risk of urinary tract infection. A-type proanthocyanidin A type proanthocyanidins are a specific type of proanthocyanidins, which are a class of flavanoid. Proanthocyanidins fall under a wide range of names in the nutritional and scientific vernacular, including oligomeric proanthocyanidins, flavanoids, polyphenols, condensed tannins, and OPCs. Proanthocyanidins were first popularized by French scientist Jacques Masquelier. A-type linkage is a less common feature in proanthocyanidins with both 4β→8 (B-type) and 2β→O→7 interflavanoid bonds. A-type proanthocyanidin