Protocol · Liver Health
Acute Liver Failure Supportive Care Protocol
N-Acetylcysteine (NAC) is the core of this stack, with 5 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Acute Liver Failure Supportive Care.
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
6 supplements · 1 graded · 1 confirmed study
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file |
|---|---|---|---|---|
| Primary stackThe core of this protocol | ||||
| N-Acetylcysteine (NAC) | Amount listed: Hospital protocol for overdose; oral 600–1,200 mg daily for general liver support (not for acute ALF) | Standard treatment for acetaminophen overdose; may have benefit in non-acetaminophen ALF via antioxidant effects
| Grade D for All-Cause Mortality1 study · 469 people | |
Confirmed studies for N-Acetylcysteine (NAC) (titles as PubMed lists them) | ||||
| Supporting stackListed as additions to the core | ||||
| Branched-Chain Amino Acids (BCAAs) | Amount listed: Hospital protocol based on clinical status | May help with hepatic encephalopathy and muscle wasting in liver disease; hospital use | Not graded yet | |
| Vitamin K | Amount listed: 5–10 mg IV or oral as directed by medical team | Supports clotting factor synthesis; given to address coagulopathy in liver failure | Not graded yet | |
| Zinc | Amount listed: 50 mg daily | Often deficient in liver disease; supplementation may help with encephalopathy | Not graded yet | |
| Phosphorus | Amount listed: Hospital protocol based on serum levels | Hypophosphatemia common during liver regeneration; repletion essential | Not graded yet | |
| Thiamine (Vitamin B1) | Amount listed: 100–200 mg IV before glucose in hospital setting | Essential to prevent Wernicke encephalopathy, especially with glucose administration | Not graded yet | |
How this protocol works
In plain language
Acute liver failure (ALF) is a medical emergency where the liver rapidly loses function in someone without prior liver disease. It can cause confusion (hepatic encephalopathy), bleeding problems, and multi-organ failure. Causes include acetaminophen (Tylenol) overdose (most common in the US/UK), viral hepatitis, drug reactions, toxins, and other conditions. ALF requires immediate hospitalization and often liver transplant.
CRITICAL: ACUTE LIVER FAILURE IS A MEDICAL EMERGENCY. If you or someone has signs of ALF (confusion, jaundice, bleeding, severe fatigue after taking potentially toxic substances), call emergency services immediately. This condition requires ICU care and potentially liver transplant. The supplements listed here are used in hospital settings under medical supervision - this is NOT a home treatment guide.
N-Acetylcysteine (NAC)* is the standard treatment for acetaminophen overdose and is given in hospitals. It works by replenishing glutathione, the liver's main antioxidant. Even in non-acetaminophen ALF, NAC has shown benefit in studies and is often used. This is administered IV in emergency settings.
Branched-Chain Amino Acids (BCAAs)* may help with hepatic encephalopathy (brain fog/confusion from liver failure) and are used in hospital nutrition protocols.
Vitamin K* is given because the failing liver cannot make clotting factors, leading to dangerous bleeding risk. IV or oral vitamin K supports whatever liver function remains.
Zinc* deficiency is common in liver disease and may contribute to encephalopathy. Supplementation may provide some benefit.
Phosphorus* becomes depleted during liver regeneration. Hospitals monitor and replete phosphorus levels as the liver heals.
Thiamine* is given to prevent Wernicke encephalopathy, especially before glucose administration. This is standard ICU practice.
Expected timeline: ALF treatment is measured in hours to days. NAC must be started as early as possible for acetaminophen overdose. Recovery depends on cause, severity, and whether transplant is needed. This is intensive hospital care, not outpatient supplement use.