Protocol · Digestive & Liver
Nonalcoholic Fatty Liver Disease (NAFLD) Protocol
Berberine and Vitamin E are 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 Nonalcoholic Fatty Liver Disease (NAFLD).
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
7 supplements · 6 graded · 1 confirmed study
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| Berberine | Amount listed: 500 mg 2–3× daily with meals | Activates AMPK to reduce hepatic lipogenesis, improves insulin sensitivity, and directly reduces liver fat accumulation
| Grade B for Blood glucose2,897 people | ||
| Vitamin E | Amount listed: 800 IU daily (d-alpha-tocopherol) | Potent antioxidant that reduces oxidative stress and inflammation in NASH, improving histological features
| Grade D for All-Cause Mortality2 studies · 351 people | ||
Confirmed studies for Vitamin E (titles as PubMed lists them) | |||||
| Supporting stackListed as additions to the core | |||||
| Omega-3 Fatty Acids | Amount listed: 2–4 g EPA/DHA daily | Reduces hepatic triglyceride synthesis and inflammation; decreases liver fat content
| Grade D for Adiponectin104 people | ||
| Silymarin (Milk Thistle) | Amount listed: 420–600 mg daily (standardized to 70–80% silymarin) | Hepatoprotective flavonoid that reduces oxidative stress, inflammation, and fibrosis in the liver | Not graded yet | ||
| Probiotics/Synbiotics | Amount listed: Multi-strain probiotic with prebiotics (synbiotic) daily | Modulates gut-liver axis, reduces endotoxemia, and improves insulin sensitivity in NAFLD
| Grade C for Blood glucose1 study · 899 people | ||
| Vitamin D | Amount listed: 2,000–4,000 IU daily (target 40–60 ng/mL) | Deficiency is common in NAFLD; supplementation may improve insulin sensitivity and reduce inflammation
| Grade B for Blood glucose2 studies · 1 person | ||
| Resveratrol | Amount listed: 500–1,500 mg daily | Activates SIRT1 and AMPK to reduce hepatic steatosis and inflammation
| Grade B for Adiponectin285 people | ||
Shop the evidence-backed picks
Support alongside medical care. These supplements are not a treatment for Nonalcoholic Fatty Liver Disease (NAFLD). If you are being treated for it, talk to your clinician before adding one: supplements can interact with medicines.
The 3 supplements in this protocol graded A or B. Each opens third-party tested products, matched to the dose above where we can.
- Grade B
- Grade B
- Grade B
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How this protocol works
In plain language
Nonalcoholic fatty liver disease (NAFLD) occurs when excess fat accumulates in the liver without significant alcohol consumption. It ranges from simple fatty liver (steatosis) to nonalcoholic steatohepatitis (NASH), which involves inflammation and can progress to cirrhosis. NAFLD is strongly linked to insulin resistance, obesity, and metabolic syndrome. This protocol targets multiple pathways to reduce liver fat, inflammation, and oxidative damage.
- Berberine is one of the most effective supplements for NAFLD. It activates AMPK—a metabolic master switch that reduces the liver's production of new fat (lipogenesis) while increasing fat burning. Studies show berberine can reduce liver fat content, improve liver enzymes (ALT, AST), and enhance insulin sensitivity. It also helps with the underlying metabolic issues that cause NAFLD, including high blood sugar and elevated lipids.
- Vitamin E is the most-studied supplement for NAFLD/NASH. The landmark PIVENS trial showed high-dose vitamin E (800 IU) significantly improved liver histology in NASH patients—reducing inflammation, ballooning, and steatosis. It works by neutralizing the oxidative stress that drives liver cell damage. Note: This dose is recommended specifically for NASH; consult your doctor before starting.
- Omega-3 Fatty Acids reduce liver fat by decreasing the liver's production of triglycerides. Multiple studies show they can reduce liver fat content by 20-30% on imaging. They also have anti-inflammatory effects. Prescription omega-3s (like Lovaza) have been used in clinical trials, but high-quality fish oil provides similar EPA/DHA.
- Silymarin (Milk Thistle) has been used for liver conditions for centuries. Its active compounds (silybin, silychristin) are powerful antioxidants that protect liver cells from damage, reduce inflammation, and may even help with fibrosis. While evidence in NAFLD is still developing, it's commonly used as a liver-protective supplement with an excellent safety profile.
- Probiotics/Synbiotics address the gut-liver axis—the connection between gut bacteria and liver health. In NAFLD, gut bacteria imbalance (dysbiosis) leads to increased endotoxins that travel to the liver and trigger inflammation. Probiotics restore healthy gut bacteria, reduce endotoxemia, and improve insulin sensitivity. Synbiotics (probiotics + prebiotics) may be more effective.
- Vitamin D deficiency is very common in NAFLD patients (50-90%) and may worsen insulin resistance and inflammation. While supplementation studies show mixed results, correcting deficiency is reasonable given the strong association and vitamin D's other metabolic benefits.
- Resveratrol activates SIRT1, a protein that regulates fat metabolism and reduces liver fat accumulation. It also activates AMPK similarly to berberine. Studies show improvements in liver enzymes and inflammatory markers.
Expected timeline: Liver enzyme improvements may be seen in 4-8 weeks. Reductions in liver fat on imaging typically require 3-6 months. Lifestyle changes (weight loss, exercise, Mediterranean diet) remain the cornerstone of treatment.