Applied Nutrition Milk Thistle tub beside three notes: a healthy liver needs none of it, NAC has the strongest data, milk thistle is mild at best
Supplements-nutrition

مكملات دعم الكبد: شوك الحليب وNAC وTUDCA — الإمارات 2026

نشر بواسطة
Sep 29 2026

الإجابة باختصار

A healthy liver does not need a supplement. Of the three, NAC has the strongest evidence, but as a hospital antidote for paracetamol overdose, not a daily capsule. TUDCA works in one bile-duct disease. Milk thistle is safe but shows only modest effects in fatty liver. Abnormal liver tests need a doctor first.

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References

  1. Milk thistle for alcoholic and/or hepatitis B or C virus liver diseases (Rambaldi A, Cochrane 2007)
  2. Administration of silymarin in NAFLD/NASH: A systematic review and meta-analysis (Li S, 2024)
  3. Acetylcysteine for acetaminophen poisoning (Heard KJ, 2008)
  4. A multicenter, randomized, double-blind trial comparing the efficacy and safety of TUDCA and UDCA in Chinese patients with primary biliary cholangitis (Ma H, 2016)
  5. Muscular exercise can cause highly pathological liver function tests in healthy men (Pettersson J, 2008)
  6. Liver injury from herbals and dietary supplements in the U.S. Drug-Induced Liver Injury Network (Navarro VJ, 2014)

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أسئلة شائعة

Do I need a liver support supplement?
If your liver is healthy and your tests are normal, a supplement is optional. Milk thistle, NAC and TUDCA do not do the liver's job for it. If you have abnormal liver tests, see a doctor before choosing any supplement.
Does milk thistle work for the liver?
The evidence is mixed. A Cochrane review of 18 trials found no effect on mortality or liver disease complications. A 2024 meta-analysis in fatty liver disease found modest drops in liver enzymes and liver fat. It is generally safe and well tolerated.
Is NAC good for the liver?
NAC is the standard hospital antidote for paracetamol overdose, which is the strongest liver evidence of the three. There is no good evidence that daily NAC improves a healthy liver. After a paracetamol overdose, go to an emergency department, not a supplement.
What is TUDCA and does it protect the liver during steroid cycles?
TUDCA is a bile acid related to the prescription drug UDCA and worked as well as UDCA in a trial in primary biliary cholangitis. There are no controlled trials showing it protects the liver from anabolic steroids, and it does not make them safe.
Why are my liver enzymes high after training?
Heavy weightlifting can raise AST and ALT for at least seven days in healthy men, because both enzymes also come from muscle. Ask your doctor about retesting after five to seven days without hard training, and whether a CK test would help.
Can supplements damage the liver?
Yes. In a US liver-injury network, supplements caused a rising share of drug-induced liver injury, from 7% to 20%. Bodybuilding products, often containing hidden steroids, caused prolonged jaundice in young men. Buy only from authorised sources.