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There are important science-backed benefits of creatine:
Creatine is stored in muscle cells as phosphocreatine and supplies an extra phosphate group to regenerate energy (ATP) during high-intensity muscle contractions.*
Creatine can increase your capacity to do high-intensity anaerobic repetitive work by about 15%. That means on any given set, you should be able to do one to two more reps with extra weight.*
In addition to increasing work capacity, creatine builds up muscles by raising the level of anabolic hormones (like IGF-1), lowers myostatin levels (elevated levels inhibit muscle growth), improves cell signaling of satellite cells (that help with repair and new muscle growth), and reduces protein breakdown.*
Creatine can augment the effects of exercise on lowering blood sugar.*
Recent research shows that creatine may also lower blood triglycerides and increase exercise capacity in heart patients.*
Creatine has been shown to have neuroprotective effects, and may possibly improve memory formation and retention.*