Nonalcoholic Fatty Liver Disease (NAFLD)
Non-alcoholic fatty liver disease (NAFLD) is a condition in which excessive fat (more than 5% of liver weight) accumulates in the liver due to causes unrelated to alcohol.
Quick Answer
What it is
Non-alcoholic fatty liver disease (NAFLD) is a condition in which excessive fat (more than 5% of liver weight) accumulates in the liver due to causes unrelated to alcohol.
Key findings
- Grade A: Liver Fat (NAFLD) (Tesamorelin)
- Grade A: Liver Fibrosis Progression (Tesamorelin)
- Grade B: C-Reactive Protein (CRP) (Black seed)
Safety
No specific caution or interaction language was detected in the current summary/outcome notes.
ℹ️ Quick Facts
Quick Facts: Nonalcoholic Fatty Liver Disease (NAFLD)
- Supplements Studied:27
- Research Trials:20
- Total Participants:39,518
- Top Supplement:Black seed (B)
20 trials
39,518 participantsppts
27 supps · 221 outcomes
Evidence-Based Protocol
Supplement stack ranked by research quality
Primary Stack (Tier 1)
500mg 2-3x daily with meals
Activates AMPK to reduce hepatic lipogenesis, improves insulin sensitivity, and directly reduces liver fat accumulation
20 studies | 1,500 participants
800 IU daily (d-alpha-tocopherol)
Potent antioxidant that reduces oxidative stress and inflammation in NASH, improving histological features
15 studies | 1,200 participants
Supporting Stack (Tier 2)
2-4g EPA/DHA daily
Reduces hepatic triglyceride synthesis and inflammation; decreases liver fat content
20 studies | 1,500 participants
420-600mg daily (standardized to 70-80% silymarin)
Hepatoprotective flavonoid that reduces oxidative stress, inflammation, and fibrosis in the liver
15 studies | 1,000 participants
Multi-strain probiotic with prebiotics (synbiotic) daily
Modulates gut-liver axis, reduces endotoxemia, and improves insulin sensitivity in NAFLD
25 studies | 1,500 participants
2000-4000 IU daily (target 40-60 ng/mL)
Deficiency is common in NAFLD; supplementation may improve insulin sensitivity and reduce inflammation
15 studies | 800 participants
500-1500mg daily
Activates SIRT1 and AMPK to reduce hepatic steatosis and inflammation
10 studies | 500 participants
How It Works
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.
Generated from peer-reviewed researchSchema v2.0
Supplements for Nonalcoholic Fatty Liver Disease (NAFLD)
Sorted by strength of evidence
Detailed Outcomes
Grade:
Effect:
Size:
Sort:
|
A
Liver Fat (NAFLD)
A randomized controlled trial showed 37% relative reduction in hepatic fat fraction from baseline, with 35% of tesamorelin patients achieving less than 5% liver fat versus 4% with placebo.
large↓Improves
A
Liver Fibrosis Progression
Liver biopsies showed tesamorelin prevented progression of fibrosis over 12 months, with reductions in liver fat associated with reductions in fibrosis.
moderate↓Improves
B
C-Reactive Protein (CRP)
Small Decrease
11 studies727 participants
small↓Improves
?
Oxidative Stress Biomarkers
12 studies591 participants
↑Worsens
?
Total Antioxidant Capacity (TAC)
9 studies480 participants
↑Improves
?
Superoxide Dismutase Activity
7 studies364 participants
↑Improves
?
TNF-Alpha
6 studies307 participants
↑Worsens
?
Interleukin 6
3 studies156 participants
↑Worsens
B
Blood glucose
Small Improvement
11 studies1 participants
small↓Improves
?
High-density lipoprotein (HDL)
16 studies1 participants
↑Improves
?
Low-density lipoprotein (LDL)
15 studies1 participants
↓Improves
?
Total cholesterol
14 studies1 participants
↓Improves
?
Triglycerides
14 studies1 participants
↓Improves
?
Weight
14 studies1 participants
↓Improves
?
Insulin Resistance
13 studies1 participants
↓Improves
?
Insulin
9 studies1 participants
↑Worsens
?
HbA1c
8 studies1 participants
↓Improves
?
Waist circumference
8 studies1 participants
↓Improves
B
Adiponectin
Small Increase
6 studies285 participants
small↑Improves
?
Body Mass Index (BMI)
25 studies1418 participants
↓Improves
?
C-Reactive Protein (CRP)
19 studies869 participants
↓Improves
?
Blood Urea Nitrogen (BUN)
17 studies894 participants
↑Improves
?
Total cholesterol
16 studies863 participants
↓Improves
?
High-density lipoprotein (HDL)
15 studies793 participants
↑Improves
?
Low-density lipoprotein (LDL)
15 studies791 participants
↓Improves
?
Weight
14 studies582 participants
↓Improves
?
Interleukin 6
13 studies631 participants
↓Improves
?
Glycemic Control
12 studies541 participants
↑Improves
?
TNF-Alpha
12 studies483 participants
↓Improves
?
Vascular Function
11 studies1448 participants
↑Improves
?
HbA1c
10 studies444 participants
↓Improves
?
Serum Albumin
10 studies516 participants
↑Improves
?
Body Fat
8 studies516 participants
↓Improves
?
Leptin
8 studies271 participants
↑Improves
?
Waist circumference
7 studies335 participants
↓Improves
?
Blood glucose
5 studies216 participants
↓Improves
?
Liver Enzymes
5 studies216 participants
↑Worsens
?
Triglycerides
5 studies216 participants
↓Improves
?
Blood Pressure
4 studies156 participants
↓Improves
?
Insulin Resistance
4 studies156 participants
↓Improves
?
Uric Acid
4 studies353 participants
↓Improves
?
Kidney Function
3 studies135 participants
↑Improves
?
Superoxide Dismutase Activity
3 studies118 participants
↑Improves
?
Insulin
1 study2474 participants
↑Worsens
B
Blood Pressure
Mixed effect
4 studies319 participants
D
Body Fat
No effect
3 studies227 participants
none
?
Liver Enzymes
14 studies957 participants
↑Worsens
?
Total cholesterol
12 studies877 participants
↓Improves
?
Triglycerides
12 studies1 participants
↓Improves
?
High-density lipoprotein (HDL)
10 studies1 participants
↑Improves
?
Low-density lipoprotein (LDL)
10 studies1 participants
↓Improves
?
Weight
10 studies701 participants
↓Improves
?
C-Reactive Protein (CRP)
7 studies478 participants
↓Improves
?
TNF-Alpha
5 studies233 participants
↓Improves
?
Waist circumference
5 studies316 participants
↓Improves
?
Liver Fibrosis
4 studies238 participants
↓Improves
?
Liver Fat
3 studies137 participants
↓Improves
?
Body Mass Index (BMI)
1 study1921 participants
↓Improves
?
Insulin Resistance
1 study1921 participants
↓Improves
B
Blood glucose
Large Improvement
2 studies2897 participants
large↓Improves
?
Triglycerides
38 studies3004 participants
↓Improves
?
Low-density lipoprotein (LDL)
35 studies2824 participants
↓Improves
?
High-density lipoprotein (HDL)
34 studies2784 participants
↑Improves
?
Total cholesterol
28 studies2804 participants
↓Improves
?
HbA1c
21 studies1156 participants
↓Improves
?
Blood Pressure
20 studies1426 participants
↓Improves
?
Insulin
16 studies1138 participants
↑Worsens
?
Insulin Resistance
14 studies1119 participants
↓Improves
?
Glycemic Control
1 study184 participants
↑Improves
?
Liver Enzymes
1 study184 participants
↑Worsens
?
Liver Fat
1 study184 participants
↓Improves
C
Liver Enzymes
Moderate Improvement
1 study2509 participants
moderate↓Improves
?
Triglycerides
1 study2509 participants
↑Worsens
C
Blood glucose
Small Improvement
1 study899 participants
small↓Improves
?
High-density lipoprotein (HDL)
2 studies2820 participants
↑Improves
?
Insulin Resistance
2 studies2820 participants
↓Improves
?
Liver Enzymes
2 studies2820 participants
↑Worsens
?
Low-density lipoprotein (LDL)
2 studies2820 participants
↓Improves
?
Total cholesterol
2 studies2820 participants
↓Improves
?
Triglycerides
2 studies2820 participants
↓Improves
?
Body Mass Index (BMI)
1 study1921 participants
↓Improves
?
HbA1c
1 study899 participants
↓Improves
?
Insulin
1 study899 participants
↑Worsens
?
Liver Fat
1 study1921 participants
↓Improves
?
Liver Fibrosis
1 study1921 participants
↓Improves
?
TNF-Alpha
1 study899 participants
↓Improves
C
Glycemic Control
Moderate Improvement
1 study56 participants
moderate↑Improves
?
Insulin
1 study56 participants
↑Worsens
?
Liver Enzymes
1 study56 participants
↑Worsens
?
Uric Acid
1 study56 participants
↓Improves
?
Weight
1 study56 participants
↓Improves
C
Hemoglobin
Small Increase
1 study15 participants
small↑Improves
?
High-density lipoprotein (HDL)
2 studies18 participants
↑Improves
?
Liver Enzymes
2 studies18 participants
↑Worsens
?
Low-density lipoprotein (LDL)
2 studies18 participants
↓Improves
?
Total cholesterol
2 studies18 participants
↓Improves
?
Triglycerides
2 studies18 participants
↓Improves
?
Insulin Resistance
1 study15 participants
↓Improves
?
Liver Fat
1 study3 participants
↓Improves
?
Weight
1 study15 participants
↓Improves
C
Apolipoprotein B
Small Improvement
1 study27 participants
small↓Improves
?
Blood glucose
1 study27 participants
↓Improves
?
Body Fat
1 study27 participants
↓Improves
?
Glycemic Control
1 study27 participants
↑Improves
?
Insulin
1 study27 participants
↑Worsens
?
Triglycerides
1 study27 participants
↓Improves
?
vLDL-C
1 study27 participants
↓Improves
?
Weight
1 study27 participants
↓Improves
C
Blood glucose
Small Improvement
1 study60 participants
small↓Improves
?
Body Mass Index (BMI)
6 studies417 participants
↓Improves
?
Liver Enzymes
6 studies406 participants
↑Worsens
?
Weight
4 studies291 participants
↓Improves
?
High-density lipoprotein (HDL)
3 studies204 participants
↑Improves
?
Low-density lipoprotein (LDL)
3 studies204 participants
↓Improves
?
Waist circumference
3 studies211 participants
↓Improves
?
C-Reactive Protein (CRP)
2 studies123 participants
↓Improves
?
Total cholesterol
2 studies604 participants
↓Improves
?
Triglycerides
2 studies604 participants
↓Improves
?
HbA1c
1 study60 participants
↓Improves
?
Liver Fat
1 study80 participants
↓Improves
C
C-Reactive Protein (CRP)
Small Decrease
1 study50 participants
small↓Improves
?
Liver Fat
1 study50 participants
↓Improves
?
Liver Fibrosis
1 study50 participants
↓Improves
?
NF-kB Activity
1 study50 participants
↓Improves
?
TNF-Alpha
1 study50 participants
↓Improves
C
Blood Pressure
Small Improvement
1 study151 participants
small↓Improves
C
C-Reactive Protein (CRP)
Small Decrease
1 study151 participants
small↓Improves
?
Liver Enzymes
Improvement
1 study151 participants
↓Improves
?
Liver Fat
Improvement
1 study151 participants
↓Improves
?
Metabolic Rate
1 study151 participants
↑Improves
?
Triglycerides
1 study151 participants
↑Worsens
?
Weight
1 study151 participants
↑Worsens
D
Glutathione (GSH)
No effect
9 studies550 participants
none
?
Total Antioxidant Capacity (TAC)
8 studies550 participants
↑Improves
?
Superoxide Dismutase Activity
5 studies550 participants
↑Improves
?
Oxidative Stress Biomarkers
4 studies550 participants
↓Improves
D
Blood glucose
Small Improvement
4 studies284 participants
small↓Improves
?
Liver Enzymes
14 studies792 participants
↑Worsens
?
Body Mass Index (BMI)
11 studies650 participants
↓Improves
?
Total cholesterol
10 studies613 participants
↓Improves
?
Weight
7 studies362 participants
↓Improves
?
Low-density lipoprotein (LDL)
5 studies2226 participants
↓Improves
?
Glycemic Control
4 studies284 participants
↑Improves
?
High-density lipoprotein (HDL)
4 studies2142 participants
↑Improves
?
Triglycerides
4 studies2142 participants
↓Improves
?
Waist circumference
4 studies164 participants
↓Improves
?
Insulin
3 studies232 participants
↑Worsens
?
Liver Fat
3 studies234 participants
↓Improves
?
HbA1c
2 studies186 participants
↓Improves
?
Liver Fibrosis
2 studies132 participants
↓Improves
?
Blood Pressure
1 study84 participants
↓Improves
?
Body Fat
1 study84 participants
↓Improves
?
C-Reactive Protein (CRP)
1 study84 participants
↓Improves
?
Insulin Resistance
1 study1908 participants
↓Improves
?
Interleukin 6
1 study84 participants
↓Improves
?
Leptin
1 study46 participants
↑Improves
?
TNF-Alpha
1 study84 participants
↓Improves
?
Uric Acid
1 study102 participants
↓Improves
D
All-Cause Mortality
No effect
3 studies351 participants
none
?
Liver Enzymes
11 studies708 participants
↑Worsens
?
Liver Fat
2 studies1008 participants
↓Improves
?
Liver Fibrosis
2 studies1008 participants
↓Improves
D
Blood glucose
No effect
3 studies255 participants
none
?
High-density lipoprotein (HDL)
13 studies797 participants
↑Improves
?
Blood Pressure
12 studies797 participants
↓Improves
?
Low-density lipoprotein (LDL)
12 studies797 participants
↓Improves
?
Total cholesterol
12 studies797 participants
↓Improves
?
Triglycerides
12 studies797 participants
↓Improves
?
Body Mass Index (BMI)
10 studies797 participants
↓Improves
D
Adiponectin
No effect
2 studies104 participants
none
?
Body Mass Index (BMI)
7 studies275 participants
↓Improves
?
Triglycerides
7 studies475 participants
↓Improves
?
Liver Enzymes
6 studies441 participants
↑Worsens
?
Low-density lipoprotein (LDL)
6 studies225 participants
↓Improves
?
Total cholesterol
6 studies225 participants
↓Improves
?
Blood glucose
5 studies145 participants
↓Improves
?
Insulin
4 studies321 participants
↑Worsens
?
Waist circumference
4 studies292 participants
↓Improves
?
TNF-Alpha
3 studies298 participants
↓Improves
?
Uric Acid
3 studies298 participants
↓Improves
?
Glycemic Control
1 study60 participants
↑Improves
?
High-density lipoprotein (HDL)
1 study439 participants
↑Improves
?
Insulin Resistance
1 study439 participants
↓Improves
?
Liver Fat
1 study60 participants
↓Improves
?
Weight
1 study60 participants
↓Improves
D
Body Mass Index (BMI)
No effect
1 study1921 participants
none
?
High-density lipoprotein (HDL)
1 study1921 participants
↑Improves
?
Insulin Resistance
1 study1921 participants
↓Improves
?
Liver Enzymes
1 study1921 participants
↑Worsens
?
Low-density lipoprotein (LDL)
1 study1921 participants
↓Improves
?
Total cholesterol
1 study1921 participants
↓Improves
?
Triglycerides
1 study1921 participants
↓Improves
D
Bilirubin
No effect
1 study37 participants
none
?
Liver Enzymes
1 study37 participants
↑Worsens
?
Liver Fibrosis
1 study37 participants
↓Improves
D
Body Mass Index (BMI)
No effect
1 study1921 participants
none
?
High-density lipoprotein (HDL)
1 study1921 participants
↑Improves
?
Insulin Resistance
1 study1921 participants
↓Improves
?
Liver Enzymes
1 study1921 participants
↑Worsens
?
Liver Fibrosis
1 study1921 participants
↓Improves
?
Low-density lipoprotein (LDL)
1 study1921 participants
↓Improves
?
Total cholesterol
1 study1921 participants
↓Improves
?
Triglycerides
1 study1921 participants
↓Improves
D
Body Mass Index (BMI)
No effect
1 study1908 participants
none
D
High-density lipoprotein (HDL)
No effect
1 study1908 participants
none
?
Triglycerides
7 studies166 participants
↓Improves
?
Liver Enzymes
6 studies437 participants
↑Worsens
?
Total cholesterol
2 studies166 participants
↓Improves
?
Insulin Resistance
1 study1908 participants
↓Improves
?
Low-density lipoprotein (LDL)
1 study1908 participants
↓Improves
D
Adiponectin
No effect
1 study34 participants
none
?
Liver Enzymes
1 study34 participants
↑Worsens
?
Liver Fat
1 study34 participants
↑Worsens
?
Liver Fibrosis
1 study34 participants
↑Worsens
?
TNF-Alpha
1 study34 participants
↑Worsens
?
Weight
1 study34 participants
↑Worsens
D
Adiponectin
No effect
1 study80 participants
none
?
Fatigue Symptoms
1 study80 participants
↓Improves
?
Liver Enzymes
1 study80 participants
↑Worsens
?
C-Reactive Protein (CRP)
6 studies265 participants
↓Improves
?
Cirrhosis Severity
1 study52 participants
↑Worsens
Research Citations (6)
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