Creatine

Creatine is a natural compound produced in the liver, kidneys, and pancreas, and stored mainly in skeletal muscles to help supply rapid energy during high-intensity exercise. [1, 2]

What It Does

Energy Production: Converts into phosphocreatine to help regenerate ATP (adenosine triphosphate), the primary fuel source for short, explosive movements like weightlifting and sprinting. [1, 2]
Muscle Growth: Supports lean muscle mass and strength gains when combined with resistance training, partly by drawing water into muscle cells (cellular hydration). [1, 2]
Brain Support: Provides energy support to the brain, with potential benefits for cognitive function and memory, particularly in older adults. [1, 2]

How to Take It

Form: Creatine Monohydrate is the most researched, effective, and affordable form. [1, 2]
Dosage: A standard daily maintenance dose is 3 to 5 grams per day. [1, 2]
Loading Phase (Optional): Some people take about 20 grams per day (divided into smaller doses) for 5 to 7 days to saturate muscles faster, followed by the daily maintenance dose, though taking a consistent daily dose skips the need for a loading phase. [1, 2]

Safety and Side Effects

Common Effects: May cause temporary water weight gain (in the muscles, not body fat) or mild digestive discomfort. [1, 2]
Kidney Health: Generally safe for healthy individuals, but anyone with pre-existing kidney disease should consult a doctor before use. [1, 2, 3]
Guidance: Organizations like the Cleveland Clinic and the Mayo Clinic recommend talking to a healthcare provider if you are pregnant, breastfeeding, or managing chronic health conditions. [1, 2]