Safety information

GAC (Glutamine-Arginine-Carnitine)

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time

Side effects

Common Side Effects

  • Injection site reactions (Pain, swelling, and redness)
  • Allergic reactions (Rash, itching, swelling, and difficulty breathing)

Specific Side Effects

  • Glutamine: Generally safe but excessive amounts may cause issues such as liver dysfunction or worsen kidney disease in susceptible individuals.
  • Arginine: High doses can cause gastrointestinal discomfort, including nausea, diarrhea, and abdominal pain. It may also affect potassium levels, potentially causing hyperkalemia in those with compromised kidney function.
  • Carnitine: Usually well-tolerated but may cause mild side effects such as nausea, vomiting, abdominal cramps, and a “fishy” body odor

Serious warnings

  • Liver and kidney concerns: Products marketed for bodybuilding, including some that may contain GAC, have been found to sometimes include undisclosed steroids or steroid-like substances. These can lead to serious liver injury, kidney damage, and other severe health issues​

  • Cardiovascular risks: The use of performance-enhancing drugs, including some amino acid injections, can increase the risk of heart attack, stroke, and other cardiovascular events, particularly when misused or taken in high doses​

  • Hormonal imbalances: Some bodybuilding supplements can disrupt natural hormone levels, potentially leading to serious conditions such as gynecomastia (breast growth in men), infertility, and increased aggression​