GAKIC, citrulline malate, caffeine
>> GAKIC This acronym stands for glycine-l-arginine-alpha-ketoiscaproic acid. The amino acid glycine improves the body's production of creatine and growth hormone (GH), and it also enhances the firing of nerves that stimulate muscles to contract stronger. The amino arginine boosts GH and nitric oxide (NO) levels. Alpha-ketoisocaproic acid (KIC) is a form of the BCAA leucine. It possesses anticatabolic properties that preserve muscle tissue, and it plays a role in energy production and aids in the removal of muscle-fatigue-inducing ammonia during exercise. Look for a product that supplies about 10Â15 grams of GAKIC per serving, and take it only on workout days.
>> Citrulline Malate This amino acid/energy precursor combo helps muscles produce rep-pumping energy. It improves blood flow to the muscle through enhanced NO production and helps muscles rebuild internal energy stores (ATP and phosphocreatine) between sets, so you'll have more energy available to churn out more reps on your next set. Take 3 grams on an empty stomach in the morning and one hour before workouts.
>> Caffeine This powerful central-nervous-system stimulant can keep you energized for hardcore workouts and boost mental alertness, concentration, mood and even muscle strength. The best supplement source is known as caffeine anhydrous. Take 200Â300 mg 1Â2 hours before workouts.