Natural Caffeine From Green Tea

Caffeine is a naturally occurring stimulant found in coffee beans, tea leaves, and cacao pods. In this case, it is extracted from green tea leaves. The extraction process typically involves using water or solvents to isolate the caffeine from the plant material.

Manufacturers add natural caffeine from green tea primarily for its stimulant properties, helping to increase alertness and reduce fatigue. It is commonly found in beverages like energy drinks, teas, and some flavored waters, as well as in certain snack bars and supplements.

In the U.S., caffeine is generally recognized as safe (GRAS) by the FDA when consumed in moderate amounts. The FDA notes that for healthy adults, up to 400 milligrams (mg) per day appears to be safe. JECFA and EFSA have evaluated caffeine and established acceptable daily intakes. While generally safe, excessive intake can lead to side effects like jitters, insomnia, and rapid heart rate. The evidence on long-term health effects is mixed, with some studies suggesting potential benefits and others raising concerns about specific populations.