Best Supplements for Fatty Liver Disease (NAFLD), Ranked by Evidence

26 supplements · 1 outcomes · 29 trials

Our #1 pick

Berberine Proven benefit Strong · 79

The strongest liver-fat evidence in the supplement aisle

500 mg twice daily (1,000 mg total), taken with meals

Liver enzyme improvements visible on blood work within 8 to 12 weeks. Imaging changes closer to 16 weeks.

Fatty liver disease is the most common liver condition on the planet, affecting roughly one in three adults in Western countries. The medical name keeps changing (NAFLD, MASLD, MAFLD) but the problem is the same: fat accumulates inside liver cells, quietly driving inflammation and, in some people, progressing toward scarring and serious damage.

The standard advice is to lose weight and exercise, and that advice is correct. But several supplements have now been tested specifically in people with fatty liver, with researchers measuring liver fat on imaging, tracking liver enzymes in blood work, and monitoring insulin resistance. Some of those supplements show real, measurable reductions in liver fat. Others are all marketing.

This ranking is built from that clinical data. Every supplement here was tested in people who actually had fatty liver, not healthy volunteers or animal models. We prioritized direct measurements of liver fat and liver enzyme improvement, not proxy markers or mechanistic speculation.

#1 deep dive

Why Berberine takes the top spot

How it works

Berberine activates an enzyme called AMPK, the same metabolic switch that exercise flips.¹ This pushes the liver to burn stored fat instead of stockpiling it, while simultaneously improving how cells respond to insulin. It also lowers the inflammatory signals that accelerate liver damage.²

What the research says

A 2024 meta-analysis pooling 10 trials and over 800 patients found berberine significantly reduced all three major liver enzymes (ALT, AST, and GGT) and improved insulin resistance in people with fatty liver.¹ An earlier 2016 meta-analysis of six NAFLD-specific trials confirmed improvements in blood lipids and post-meal glucose.² A large 2026 trial published in JAMA Network Open (337 participants, 6 months) found berberine lowered LDL and inflammation markers but did not reduce liver fat on CT imaging in people without diabetes, suggesting the benefit may be strongest when metabolic dysfunction is already present.³

Best for

People with fatty liver who also have elevated blood sugar, insulin resistance, or metabolic syndrome. The metabolic benefits compound: berberine improves liver fat, blood sugar, cholesterol, and inflammation simultaneously.

Watch out

Berberine is a potent CYP enzyme inhibitor. It interacts with cyclosporine, warfarin, certain blood pressure medications, and diabetes drugs like glipizide. If you take prescription medications, especially blood thinners or immunosuppressants, check with your doctor before starting. GI side effects (nausea, diarrhea, constipation) are common but usually mild.

Pro tip

Split the dose: 500 mg with breakfast, 500 mg with dinner. Taking it with food reduces stomach upset and improves absorption. Some people start at 500 mg daily for the first week to let their gut adjust.

Evidence by outcome

Reduce liver fat in fatty liver Proven benefit

Helps shrink fat stored in the liver on scans, scores, or ultrasound.

d=0.52 Moderate effect 6 endpoints trust 79

Expected: ↓1.0 on mRS (meaningful at 1) · 16 weeks

Curcumin (Turmeric Extract)

Likely helps

Good · 50 Moderate effect

The anti-inflammatory heavyweight with direct liver imaging results

500 to 1,000 mg of a bioavailability-enhanced curcumin extract daily. Phytosomal formulations (like Meriva) or those paired with piperine are the forms tested in liver trials.

Liver enzyme changes within 8 weeks. Ultrasound-visible steatosis improvement by 8 to 12 weeks.

Full breakdown

How it works

Curcumin dials down NF-kB, the master switch behind liver inflammation.⁷ In fatty liver, this inflammatory cascade is what pushes simple fat accumulation toward the scarring and damage of NASH. Curcumin also improves insulin sensitivity, which helps stop the metabolic conveyor belt that keeps feeding fat into the liver.¹⁰

What the research says

A 2023 meta-analysis of NAFLD trials found curcumin significantly reduced both ALT and AST liver enzymes and roughly tripled the rate of ultrasound-detected steatosis resolution compared to placebo.¹⁰ A separate 2024 meta-analysis confirmed that phytosomal curcumin reduced body weight, BMI, and body fat in NAFLD patients.⁹ The liver enzyme improvements are modest individually, but the combination of reduced inflammation, improved insulin handling, and direct imaging improvement makes a credible package.

Best for

People with fatty liver who also deal with joint pain, general inflammation, or metabolic syndrome. Curcumin has deep evidence across arthritis and metabolic conditions, so you may get more than liver benefits.

Watch out

Curcumin interacts with blood thinners (warfarin, aspirin, clopidogrel) and immunosuppressants (tacrolimus, cyclosporine). Multiple case reports document elevated tacrolimus levels with curcumin. If you take any of these medications, this is not a casual add.

Pro tip

Standard turmeric powder is poorly absorbed. The clinical trials that showed liver benefits used bioavailability-enhanced forms. Look for phytosomal curcumin, or curcumin paired with piperine (black pepper extract). Take with a fat-containing meal.

Evidence by outcome

Reduce liver fat in fatty liver Likely helps

d=0.70 Moderate effect 10 endpoints trust 50

Resveratrol

Early data

Limited · 42 Moderate effect

Strong metabolic benefits, but liver-specific results are mixed

500 to 1,500 mg daily

Blood sugar and insulin improvements within 8 weeks. Liver-specific changes are inconsistent across trials.

Full breakdown

How it works

Resveratrol activates SIRT1, a protein that helps regulate fat metabolism and inflammation in the liver.¹¹ It also improves insulin sensitivity through multiple pathways, reducing the metabolic pressure that drives fat into liver cells.¹³

What the research says

A 2023 integrative meta-analysis found dramatic improvements in liver enzymes, inflammation, and oxidative stress in animal models, but the human trial data told a different story: pooled results from clinical trials showed no significant improvement in ALT, AST, body weight, or lipid markers in NAFLD patients.¹⁴ A 2020 meta-analysis of seven NAFLD-specific trials (302 patients) actually found a small but statistically significant increase in ALT.¹² Resveratrol does have strong evidence for improving insulin resistance and blood sugar control generally, which matters for the metabolic drivers of fatty liver, but the direct liver-fat evidence is weak.

Best for

People whose fatty liver is part of a broader metabolic picture involving insulin resistance, high blood sugar, or type 2 diabetes. The metabolic improvements are real even if the direct liver imaging data is underwhelming.

Watch out

High-dose resveratrol (1,000 mg and above) inhibits CYP3A4, CYP2C9, and CYP2D6. It interacts with warfarin, carbamazepine, and several other medications. The ALT increase seen in one meta-analysis, while small, means liver enzymes should be monitored.

Evidence by outcome

Reduce liver fat in fatty liver Early data

d=0.51 Moderate effect 5 endpoints trust 42

Expected: ↓1.0 on mRS (meaningful at 1) · 8 weeks

Myo-Inositol

Early data

Limited · 41 Moderate effect

An insulin sensitizer with promising early liver data

2,000 to 4,000 mg daily, typically split into two doses

Insulin and metabolic marker improvements within 8 weeks. Liver imaging changes seen at 8 weeks in one trial.

Full breakdown

How it works

Myo-inositol is a key player in insulin signaling inside cells.¹⁵ In fatty liver, insulin resistance is the engine that keeps pushing fat into liver cells. By improving how cells hear and respond to insulin signals, inositol helps slow down that process. Animal studies show it directly reduces fat-making enzyme activity in the liver.¹⁶

What the research says

A 2023 trial of 51 obese adults with NAFLD found that 4 grams daily of myo-inositol for 8 weeks improved insulin resistance, liver enzymes (ALT dropped significantly), lipid profile, and ultrasound-based liver fat grading.¹⁵ A systematic review confirmed that animal data consistently shows liver fat reduction with inositol supplementation, but noted that human evidence is still limited to small trials.¹⁶ Inositol has a much larger evidence base for PCOS and insulin resistance generally, which provides indirect confidence for the metabolic mechanism.

Best for

Women with PCOS-related fatty liver, or anyone whose fatty liver is driven primarily by insulin resistance. The PCOS evidence base gives additional confidence for this population.

Pro tip

Inositol dissolves well in water and has a mildly sweet taste. Many people mix the powder into their morning drink rather than taking capsules. The powder form is also significantly cheaper per dose than capsules.

Evidence by outcome

Reduce liver fat in fatty liver Early data

d=0.73 Moderate effect 2 endpoints trust 41

Ginger

Early data

Limited · 41 Small effect

Modest liver enzyme benefits alongside broader metabolic support

1,500 mg of ginger powder daily

12 weeks in the NAFLD trials that showed benefit

Full breakdown

How it works

Ginger's active compounds (gingerols and shogaols) reduce inflammation and improve insulin sensitivity.¹⁷ In the liver specifically, ginger lowered fetuin-A, a protein that links fatty liver to insulin resistance.¹⁷

What the research says

A 2023 meta-analysis of four NAFLD trials (177 patients) found ginger modestly lowered ALT and improved insulin resistance, but showed no significant effect on AST, cholesterol, LDL, or BMI.¹⁸ A 2020 trial (50 patients, 12 weeks) confirmed ALT reduction and showed improvements in fasting glucose, insulin resistance, and inflammation, but no change in ultrasound liver fat grading.¹⁷ The effect is real but small, and the evidence base is thin.

Best for

People looking for a gentle, well-tolerated addition to a liver-health regimen, especially if they also deal with nausea, digestive discomfort, or general inflammation.

Watch out

Ginger has antiplatelet activity. Case reports link it to elevated INR in people taking warfarin or phenprocoumon. If you take blood thinners, use caution.

Evidence by outcome

Reduce liver fat in fatty liver Early data

d=0.29 Small effect 2 endpoints trust 41

Fish Oil (Omega-3)

Early data

Very early · 39 Small effect

Lowers triglycerides reliably, but liver fat results are modest

2,000 to 4,000 mg of combined EPA and DHA daily

Triglyceride reduction within 4 to 8 weeks. Liver-specific changes at 12 weeks or longer.

Full breakdown

How it works

Omega-3 fatty acids reduce liver fat production by activating PPAR-alpha, a nuclear receptor that shifts the liver from fat storage mode to fat burning mode.²¹ They also powerfully reduce triglycerides and lower TNF-alpha, one of the inflammatory signals that drives fatty liver progression.²²

What the research says

A 2025 meta-analysis of MASLD trials found fish oil modestly reduced AST, triglycerides, insulin resistance, and waist circumference, but did not significantly improve ALT, total cholesterol, or BMI.²² A 2019 trial in overweight men found that 12 weeks of fish oil increased omega-3 status but did not reduce liver fat on MRI.²¹ Fish oil is a proven triglyceride-lowering intervention, and that matters for the metabolic context of fatty liver, but the direct liver fat evidence is weaker than berberine or curcumin.

Best for

People with fatty liver and elevated triglycerides. Fish oil addresses the lipid side of the metabolic equation, and the triglyceride reduction is one of the most reliable effects in supplement research.

Watch out

High-dose fish oil (above 3 grams EPA+DHA) can increase bleeding time. Talk to your doctor if you take blood thinners. Some people experience fishy burps, which enteric-coated capsules or taking with meals can reduce.

Pro tip

Look for concentrated fish oil with a high EPA+DHA content per capsule. Many standard fish oil capsules contain only 300 mg of EPA+DHA per 1,000 mg capsule, meaning you would need 7 to 13 capsules daily to reach trial doses. Concentrated forms get you there in 2 to 4 capsules.

Evidence by outcome

Reduce liver fat in fatty liver Early data

d=0.29 Small effect 4 endpoints trust 39

Garlic

Early data

Very early · 38 Moderate effect

Improved liver imaging in one well-designed trial

800 mg of garlic powder daily (enteric-coated)

15 weeks in the trial that showed liver imaging improvement

Full breakdown

How it works

Garlic's sulfur compounds (allicin and its derivatives) reduce oxidative stress in the liver and improve lipid metabolism.²⁴ Garlic also lowers inflammatory markers and has consistent effects on cholesterol and blood pressure, addressing the cardiovascular risk that often accompanies fatty liver.²⁵

What the research says

A 2023 meta-analysis found garlic lowered ALT and AST in NAFLD patients and was associated with lower odds of fatty liver diagnosis in observational studies.²⁴ A 2020 trial of 110 patients found that 800 mg daily of enteric-coated garlic powder for 15 weeks improved ultrasound-detected liver fat grading, liver enzymes, lipids, and blood sugar.²⁵ The evidence is thin (this is essentially one good trial plus supportive observational data), but the results are encouraging and garlic has a well-established safety profile.

Best for

People who want a well-tolerated, food-derived supplement with broad cardiovascular and metabolic benefits alongside modest liver support.

Watch out

Garlic has antiplatelet effects and interacts with blood thinners (warfarin, clopidogrel). Stop garlic supplements at least one week before scheduled surgery.

Pro tip

Enteric-coated garlic tablets (like the form used in the NAFLD trial) prevent the garlic odor and protect the active compounds from stomach acid. Raw garlic cloves are not equivalent; the dosing and standardization are different.

Evidence by outcome

Reduce liver fat in fatty liver Early data

d=0.94 Moderate effect 1 endpoints trust 38

What doesn't work

Save your money on these

Milk Thistle (Silymarin) Not enough research

The most popular 'liver supplement' in the world, but the research is mostly in alcoholic liver disease and hepatitis, not metabolic fatty liver disease. A handful of NAFLD-specific studies exist but are too small and inconsistent to confirm a benefit for reducing liver fat. If you have NAFLD, the marketing is ahead of the evidence.

NAC (N-Acetyl Cysteine) Not enough research

NAC is a legitimate antioxidant used in hospitals for acetaminophen overdose, and supplement marketing has stretched that into 'liver detox.' The hospital use case is acute poisoning, not chronic metabolic fat accumulation. Clinical research on NAC for fatty liver is essentially nonexistent.

Artichoke Extract Not enough research

A staple of European 'liver and digestion' supplements. Artichoke does have some positive signals for liver enzymes and digestion, but for the specific question of reducing liver fat in NAFLD, the evidence is too thin. Its strengths are in a different part of digestive health.

Inulin Early data

The gut-liver axis theory is sound, but when tested directly in NAFLD patients, inulin changed gut bacteria without budging liver fat. A 2024 pilot trial measured liver fat with MRI spectroscopy and found zero improvement after 12 weeks despite clear microbiome shifts.

Green Tea Extract (EGCG) Early data

The only NAFLD-specific trial had implausibly large effect sizes from a single site, and high-dose EGCG supplements carry a documented risk of liver injury. Recommending a supplement with hepatotoxicity concerns for a liver condition requires stronger evidence than one unreplicated trial.

Synergistic stacks

Combinations that work better together

The Metabolic Reset

Berberine + Curcumin

Berberine targets insulin resistance and lipid metabolism directly. Curcumin addresses inflammation and has independent evidence for liver fat resolution. Different mechanisms, no known interaction between them.

Berberine 500 mg twice daily with meals. Curcumin (phytosomal) 500 mg once daily with dinner.

The Lipid Reset

Berberine + Fish Oil

Berberine targets insulin resistance and liver enzymes directly. Fish oil addresses triglycerides and inflammation through a different pathway (PPAR-alpha activation). Together they cover both the metabolic and lipid sides of fatty liver.

Berberine 500 mg twice daily with meals. Fish oil 2,000 to 3,000 mg EPA+DHA daily with dinner.

Buying guide

What to look for on the label

Form matters

•Berberine: standard berberine HCl is well-studied. Dihydroberberine claims better absorption but has less clinical trial data behind it.
•Curcumin: bioavailability matters enormously. Standard turmeric powder is poorly absorbed. Look for phytosomal curcumin (Meriva), curcumin with piperine, or other enhanced-absorption forms.
•Fish oil: check the EPA+DHA content per capsule, not total fish oil. You need 2,000 to 4,000 mg of EPA+DHA, which is often 4 to 8 standard capsules or 2 to 3 concentrated ones.
•Garlic: enteric-coated tablets protect allicin from stomach acid and are the form tested in the NAFLD trial. Raw garlic and garlic oil are not the same thing.

Red flags

•Any product claiming to 'detox' or 'cleanse' your liver. The liver does not need detoxing. It needs less fat stored inside it.
•'Liver support blends' that combine 15 ingredients at sub-clinical doses. If the label lists berberine at 100 mg in a proprietary blend, you are getting one-tenth of the studied dose.
•Products marketed primarily with before-and-after testimonials rather than clinical trial references.

Quality markers

•Third-party testing (USP, NSF, or ConsumerLab verification) is especially important for herbal extracts where contamination and mislabeling are common.
•Standardized extract percentages listed on the label (e.g., 95% curcuminoids, a specific allicin yield).
•Doses that match what was used in clinical trials, not arbitrary amounts chosen for marketing convenience.

The bottom line

Fatty liver responds to the same metabolic levers that drive it: insulin resistance, inflammation, and lipid metabolism. The supplements that work best here, berberine and curcumin in particular, act on those levers with enough force to show up on imaging and blood work.

But supplements are the second line, not the first. A 7 to 10 percent reduction in body weight consistently produces larger improvements in liver fat than any supplement studied so far. The best use of these supplements is alongside the lifestyle changes that move the needle most, not as a replacement for them.

If you are going to pick one, berberine has the deepest evidence and the broadest metabolic reach. If you are already managing blood sugar with medication, talk to your doctor first, because berberine interacts with several drug classes.

Frequently asked

Common questions

Can supplements reverse fatty liver on their own?

No. Weight loss of 7 to 10 percent produces the largest and most consistent improvements in liver fat in clinical trials. Supplements can complement that effort, particularly berberine and curcumin which have shown measurable liver fat reduction in imaging studies, but they are not a substitute for the dietary and exercise changes that drive the biggest improvements.¹¹⁰

How long do I need to take supplements before seeing results?

Most liver-specific trials ran for 8 to 16 weeks before measuring outcomes. Liver enzymes (ALT, AST) can improve within 8 weeks. Liver fat on imaging typically takes 12 to 16 weeks to show measurable change. If blood work shows no improvement after 12 weeks, the supplement probably is not helping you specifically.

Is berberine safe to take with metformin?

Both berberine and metformin lower blood sugar through overlapping mechanisms. Combining them increases the risk of hypoglycemia (blood sugar dropping too low) and GI side effects. If you take metformin, talk to your doctor before adding berberine. Some clinicians use them together at adjusted doses, but this requires monitoring.¹

Why is milk thistle not on this list?

Milk thistle (silymarin) is the most recognized 'liver supplement,' but its evidence base is in alcoholic liver disease and viral hepatitis, not metabolic fatty liver disease. Clinical trials specifically testing milk thistle for NAFLD liver fat reduction are largely missing. That doesn't mean it can't help, but the research for this specific condition hasn't been done yet.

Should I worry about green tea extract damaging my liver?

High-dose EGCG supplements have caused liver injury in rare cases, primarily when taken on an empty stomach at doses above 800 mg. The risk is low but real. Always take green tea extract with food, start at a lower dose, and if you already have elevated liver enzymes, monitor them closely after starting. Drinking green tea as a beverage has not been associated with liver risk at normal consumption levels.²³

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Sources

Generated April 4, 2026