Caffeine is one of the most popular fast acting stimulants. Caffeine may have significant effects on physiological response and performance of trained athletes. Caffeine acts as a potent central nervous system stimulant, increases the release of adrenaline, acts as a thermogenic agent (raises Metabolic rate and core body temperature) and increases the use of body fat for fuel. WARNINGS: Do not use if pregnant or lactating. Seek the advice of a health professional before using this product. The recommended dose of this product contains about as much caffeine as a cup of coffee. Limit the use of caffeine-containing medications, foods or beverages while taking this product because too much caffeine may cause nervousness, irritability, sleeplessness and occasionally rapid heart beat. Do not give to children under 12 years of age. In case of accidental overdose, seek professional assistance or contact a poison control center immediately.