Is alpha lipoic acid (ALA) effective in lowering Gamma-Glutamyl Transferase (GGT) levels?

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Last updated: June 6, 2025View editorial policy

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From the Research

Alpha lipoic acid (ALA) is effective in lowering Gamma-Glutamyl Transferase (GGT) levels, as evidenced by a 2013 study that showed a significant decrease in GGT levels in patients with nonalcoholic fatty liver disease (NAFLD) who received ALA and ursodeoxycholic acid therapy 1.

Key Findings

  • ALA supplements typically range from 300-600 mg daily, with some studies using doses up to 1200 mg for liver conditions.
  • For those with elevated GGT, a common starting dose is 600 mg daily, taken with food to minimize potential stomach discomfort.
  • ALA works as a powerful antioxidant that helps protect liver cells from oxidative damage and supports detoxification processes.
  • It may improve liver function by reducing inflammation and enhancing glutathione production, which is crucial for liver detoxification.
  • GGT is an enzyme that indicates liver stress or damage, and ALA's antioxidant properties directly address this underlying oxidative stress.

Important Considerations

  • While ALA supplementation may help lower GGT, it should complement rather than replace addressing root causes of elevated GGT, such as alcohol consumption, medication side effects, or underlying liver conditions.
  • Consulting with a healthcare provider before starting ALA is important, especially for those on diabetes medications, as ALA may enhance insulin sensitivity and potentially cause hypoglycemia.
  • A more recent study from 2019 found that ALA supplementation improved serum adiponectin and IL-6 levels in obese patients with NAFLD, although it did not significantly change serum liver enzymes or liver steatosis 2.
  • Another study from 2020 demonstrated the effectiveness of a triple antioxidant therapy, including ALA, in improving the evolution and prognosis of patients with chronic liver disease 3.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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