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Sequential measurements were made of muscle strength (one repetition maximum), body composition (dual energy x-ray absorptiometry), and circulating levels of insulin-like growth factor-I (IGF-I) and IGF-binding protein-3
Increases energy levels and endurance during workouts
Another indicated that test groups who received L-theanine alone or L-theanine plus caffeine both showed significant improvement in ADHD symptoms versus placebo
Increased L-carnitine levels mean increased use of fat for the production of energy rather
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