If you're looking up the best supplements for fatty liver, you probably already know your ALT came back high, or your last imaging mentioned "hepatic steatosis.".
Quick Answer: which supplements would I actually start with?
For most adults with NAFLD/MASLD already working on weight loss and a Mediterranean pattern, the two supplements with the cleanest adjunctive signal are omega-3 EPA/DHA at 2 g per day or higher, and choline if your diet is low in eggs, beef, and fish, with vitamin E reserved for non-diabetic adults with biopsy-proven NASH under hepatology supervision.
- Best for reducing intrahepatic triglycerides at the margin: omega-3 EPA/DHA, 2 to 4 g per day, EPA-dominant.
- Best for closing a real dietary gap: choline, 425 mg per day for adult women, 550 mg per day for adult men, ideally from food first.
- Best for biopsy-proven NASH in non-diabetic, non-prostate-cancer-risk adults under hepatology care: vitamin E 800 IU per day, time-limited.
- Not ideal for anyone on warfarin (vitamin E and high-dose omega-3 both raise bleeding risk), men with a personal or family prostate cancer history (vitamin E), adults with type 2 diabetes (vitamin E AGA caveat), or anyone using supplements to skip the weight-loss conversation.
- Do first: confirm a recent ALT, AST, fasting glucose, HbA1c, lipid panel, and a FIB-4 score with your clinician. Ask whether your imaging suggests simple steatosis or steatohepatitis, and whether your fibrosis stage warrants a hepatology referral. Then prioritize a 7 to 10 percent weight loss plus a Mediterranean eating pattern. Supplements are the layer that goes on top of that, not a substitute for it.
If your fibrosis is moderate to advanced, the FDA in March 2024 approved resmetirom (Rezdiffra) for that population, and GLP-1 agonists like semaglutide are increasingly used. Those decisions belong to your hepatologist, not your supplement closet.
What fatty liver actually is, briefly
Fatty liver disease, technically non-alcoholic fatty liver disease (NAFLD), was renamed in 2023 to metabolic dysfunction-associated steatotic liver disease (MASLD). The new name reflects what hepatologists already knew: this is a metabolic problem, not an "I drank too much" problem. The defining feature is hepatic steatosis, meaning fat in more than 5 percent of liver cells, driven mostly by insulin resistance and an oversupply of dietary energy. ALT is the workhorse marker on bloodwork, but ALT can be normal even with significant steatosis, so imaging (ultrasound, FibroScan, or MRI-PDFF) often matters more.
Severity ranges from simple steatosis, to steatohepatitis (NASH, now MASH), to fibrosis, to cirrhosis and hepatocellular carcinoma. The FIB-4 score, calculated from age, AST, ALT, and platelets, is the cheapest way to flag who needs a hepatology referral. The 2021 AGA Clinical Practice Update and the 2023 AASLD Practice Guidance both put a 7 to 10 percent body-weight loss as the cornerstone, with a Mediterranean dietary pattern as the most evidence-supported food framework. Pharmacologic options now include resmetirom for NASH with significant fibrosis and GLP-1 agonists for the metabolic comorbidities. Supplements sit at the bottom of that hierarchy, as adjuncts.
The supplements with the strongest evidence
Omega-3 EPA/DHA
Why it helps: Omega-3 fatty acids reduce hepatic de novo lipogenesis, increase fatty acid oxidation, and improve insulin sensitivity. In plain terms, they tell the liver to stop making so much fat and to burn more of what's already there.
What the trials show: A 2018 meta-analysis (Musa-Veloso et al., 18 RCTs, n=1424) found omega-3 supplementation produced a statistically significant reduction in liver fat versus control, with effect sizes around a 5 to 10 percent relative reduction in intrahepatic triglycerides. The WELCOME trial (Scorletti et al. 2014, n=103, EPA+DHA 4 g/day for 15 to 18 months) showed liver-fat improvement with the strongest signal in patients who reached higher red-blood-cell DHA enrichment. ALT changes have been less consistent.
Dose used in trials: Most positive trials used at least 2 g/day of combined EPA + DHA, with the better-quality signals at 3 to 4 g/day. Read the label: a 1,000 mg "fish oil" softgel often delivers only 300 mg of EPA + DHA, so 2 g typically means six to eight standard softgels or one to two concentrated softgels.
Form to look for: Triglyceride-form or re-esterified triglyceride fish oil absorbs better than the ethyl-ester form for the same labeled mg. ConsumerLab and IFOS test for oxidation and contaminants; pick a brand that publishes a recent third-party assay. For a deeper brand comparison, see the UV roundup of the best omega-3 supplements.
Skip if you're on warfarin or a high-dose antiplatelet, have a bleeding disorder, or are scheduled for surgery within 2 weeks. High-dose omega-3 has a modest additive antithrombotic effect.
Actionable takeaway: If your meal pattern already includes two servings per week of fatty fish (salmon, sardines, mackerel), you're closing a meaningful share of the gap from food. The supplement that helps is the one that closes a real gap; if your fish intake is near zero, a 2 g per day EPA/DHA supplement is doing more work than if your dietary intake is already at the recommended level.
Vitamin E (alpha-tocopherol), narrow indication with real caveats
Why it helps: Vitamin E is a fat-soluble antioxidant that reduces hepatic oxidative stress, one of the drivers of the progression from simple steatosis to steatohepatitis.
What the trials show: The pivotal trial is PIVENS (Sanyal et al. 2010, n=247), in which non-diabetic adults with biopsy-proven NASH received vitamin E 800 IU/day, pioglitazone 30 mg/day, or placebo for 96 weeks. Vitamin E significantly improved histologic NASH features versus placebo (43 vs 19 percent meeting the primary endpoint). On the strength of this trial, the AGA gives a conditional recommendation for vitamin E in non-diabetic adults with biopsy-proven NASH.
Dose used in trials: 800 IU per day of natural d-alpha-tocopherol, time-limited and supervised.
Form to look for: Natural d-alpha-tocopherol, not dl-alpha-tocopherol (the synthetic form is roughly half as bioavailable on a per-IU basis).
Skip if you have type 2 diabetes (the AGA conditional recommendation explicitly excludes diabetics, where vitamin E benefit was not replicated), if you are a man with a personal or family history of prostate cancer (the SELECT trial follow-up showed a 17 percent relative increase in prostate cancer incidence in men taking 400 IU per day), if you are on warfarin (per the Drugs.com interaction monograph, vitamin E and warfarin together raise bleeding risk), or if your NAFLD has not been biopsy-confirmed as NASH. Ask your hepatologist before starting vitamin E for fatty liver. This is the supplement on this list where "ask your doctor about a blood test and a fibrosis staging before assuming you need it" is non-negotiable.
Choline
Why it helps: Choline is required to package triglycerides into VLDL for export from the liver. Without enough choline, fat accumulates in hepatocytes. Choline deficiency directly produces hepatic steatosis in controlled feeding studies, which is one of the cleanest mechanistic stories in nutrition science.
What the trials show: Direct RCTs of choline supplementation for established NAFLD are limited, but controlled feeding studies and observational data consistently link low choline intake to steatosis risk. The NIH ODS sets adequate intake at 425 mg/day for adult women and 550 mg/day for adult men. National intake data show most US adults eat well below that, especially women, vegetarians, and people who skip eggs.
Dose used in trials: Target dietary adequacy first, then supplement 250 to 500 mg/day if intake is low. Three whole eggs deliver roughly 450 mg of choline, which alone brings most women to adequacy.
Form to look for: Food first. Eggs (about 150 mg per egg), beef liver (the densest source by a wide margin), salmon, chicken breast, and soybeans cover most of the requirement. If you supplement, choline bitartrate or phosphatidylcholine are the common forms; alpha-GPC is sold for cognitive use at much higher doses than fatty liver evidence supports.
Skip if you have trimethylaminuria (a rare genetic condition that produces a fishy odor with choline supplementation), or if your diet already covers the AI from food. Doses well above 3.5 g per day can cause fishy body odor, sweating, and low blood pressure.
Actionable takeaway: Of the three strong-evidence picks, choline is the likeliest real dietary gap. A typical 2000-kcal pattern with one egg per day, occasional fish, and modest beef may still come up short for adult women. The supplement earns its place when the diet doesn't.
Supplements with moderate evidence (consider with caveats)
Berberine
Worth considering if you have NAFLD alongside insulin resistance or prediabetes, with caveats. A 2020 meta-analysis (Yan et al., 6 RCTs, n=501) reported significant reductions in ALT, AST, and HOMA-IR with berberine in NAFLD patients. The mechanism (AMPK activation, improved insulin sensitivity) is plausible. The catch: trials are small, mostly Chinese populations, and berberine has a meaningful interaction profile with metformin, statins, and others. Typical trial dose is 1,500 mg/day split as 500 mg three times daily. Discuss with your prescriber before starting if you take any prescription medication.
Silymarin (milk thistle)
Worth considering if your ALT is mildly elevated and you want a low-stakes adjunct. Older trials and a few newer ones show modest ALT and AST reductions in NAFLD, but liver-fat measurements (the more meaningful endpoint) have been less consistent. Newer MASLD-focused trials are underway. Typical trial dose is silybin-phosphatidylcholine 376 mg twice daily or standardized silymarin 140 mg three times daily. Mostly safe, with rare GI complaints. Don't expect a dramatic ALT swing.
Vitamin D
Worth considering if your serum 25(OH)D is below 30 ng/mL, with caveats. Low vitamin D is associated with NAFLD severity in observational studies, but RCTs of vitamin D supplementation specifically for NAFLD endpoints have produced modest and inconsistent results. If your level is low, correct the deficiency for its general health reasons (bone, immune, muscle), and accept that the liver-specific signal is small. Don't pre-emptively megadose if your level is normal.
Popular but evidence-thin
Curcumin and resveratrol
Curcumin and resveratrol are widely recommended for "liver detox" and NAFLD in supplement-brand marketing. The actual evidence is thin. Small curcumin trials have shown modest ALT reductions, with bioavailability problems that make dose translation tricky. Resveratrol trials in NAFLD have been mostly underwhelming, including a few with no liver-fat benefit. If you want to try one, six to eight weeks of a standardized product is the smallest reasonable trial, but I would not expect a meaningful change in your imaging or your ALT.
N-acetylcysteine (NAC)
Small NAFLD trials have shown ALT reductions with NAC, often combined with vitamin E. The evidence base is genuinely small. Reasonable if a hepatologist wants to layer it in, but it's not the first or second thing I would reach for.
What to look for when buying
A supplement brand can look impressive on a label and still miss the basics. A few decision shortcuts:
- For omega-3, check the EPA + DHA mg per softgel (not the total "fish oil" mg), prefer triglyceride or re-esterified TG form, and pick a brand with a recent ConsumerLab or IFOS third-party assay.
- For vitamin E, insist on natural d-alpha-tocopherol and ideally a mixed-tocopherol product. Avoid dl-alpha-tocopherol.
- For choline, check actual elemental choline per serving, not just "phosphatidylcholine complex" weight.
- USP Verified, NSF Certified for Sport, or ConsumerLab Approved are real third-party seals. "GMP certified" and "lab tested" without naming the lab are not the same.
- Avoid proprietary blends without per-ingredient mg, "liver detox" combinations with 12 ingredients at sub-clinical doses, and anything making cure claims.
| Question | Your answer |
|---|---|
| Is my fatty liver simple steatosis or biopsy-proven NASH? | |
| What is my FIB-4 score? | |
| Do I already eat fatty fish twice a week? | |
| Do I eat eggs or beef regularly (for choline)? | |
| Am I on warfarin or any antiplatelet? | |
| Have I lost 7 to 10 percent of my body weight yet? |
When supplements are NOT enough
Supplements stop being the conversation when:
- Your FIB-4 score is above 2.67, suggesting advanced fibrosis. You need hepatology, not a supplement aisle.
- Your imaging shows cirrhosis, splenomegaly, or signs of portal hypertension.
- You have type 2 diabetes with poor control, in which case a GLP-1 agonist or SGLT2 inhibitor will likely do more for your liver than any supplement.
- Your ALT is persistently above three times the upper limit of normal, or you have new jaundice, ascites, or unexplained weight loss.
- You have biopsy-proven NASH with moderate to advanced fibrosis, where the FDA-approved drug resmetirom (Rezdiffra) is now an option for the right patients.
Bloodwork changes the question. Without it, you're guessing which supplement to add.
FAQ
Can supplements reverse fatty liver?
No supplement does so on its own. A 7 to 10 percent body-weight reduction with a Mediterranean dietary pattern is the most consistent reversal lever in the literature, per the AASLD 2023 guidance. Omega-3 and, in selected cases, vitamin E may shave a few percentage points off intrahepatic triglycerides on top of that.
Is milk thistle safe to take with my liver meds?
Silymarin is generally well tolerated, but it can interact with several CYP enzyme substrates including some statins and antihypertensives. If you're on prescription medication, ask your pharmacist to screen for interactions before starting.
What about coffee?
Two to three cups of coffee per day are associated with lower NAFLD prevalence, lower fibrosis progression, and lower hepatocellular carcinoma risk in large observational cohorts. It's the strongest dietary signal short of weight loss. I do not recommend coffee as a "supplement," but if you already drink it black or with minimal sugar, that's a quiet win for your liver.
Is fish oil safe with statins?
Generally yes, and the combination has been studied. Watch for additive bleeding risk if you also take an antiplatelet or anticoagulant, and check with your prescriber.
Should I get my choline level tested?
There is no commonly available clinical lab test for choline status the way there is for vitamin D or B12. Dietary recall is the better tool. If you rarely eat eggs, liver, fish, or beef, your intake is almost certainly below the AI, and supplementing 250 to 500 mg/day is reasonable.
Building a supplement routine for this? Our companion app, StackMyMed, lets you scan each product, track your real daily intake, and get timing reminders plus interaction checks across your whole stack.
Conclusion: the bottom line on best supplements for fatty liver
For most adults with NAFLD/MASLD, the supplements that earn their place are omega-3 EPA/DHA at 2 g/day or more (especially if you eat little fatty fish) and choline at the AI from food first, supplements second. Vitamin E at 800 IU/day has a real but narrow indication in non-diabetic adults with biopsy-proven NASH, under hepatology supervision, and carries a mandatory prostate cancer and warfarin caveat. Berberine, silymarin, and vitamin D are reasonable second-tier options. None of these outperform a 7 to 10 percent body-weight reduction plus a Mediterranean pattern, and none replace resmetirom or a GLP-1 agonist when those are indicated.
Next steps:
- Ask your clinician for ALT, AST, fasting glucose, HbA1c, lipid panel, vitamin D, and a FIB-4 score before adding anything.
- Audit your weekly intake of fatty fish and eggs. Those two foods cover most of the strongest-evidence gap.
- If you have not yet, read the UV roundup on the best supplements for type 2 diabetes, because insulin resistance and fatty liver travel together. For omega-3 brand selection, see the best omega-3 supplements roundup, and for the way we evaluate every supplement on this site, see how we review supplements.
This article is for informational purposes and not medical advice. Supplements can interact with prescription medications and health conditions. Consult a licensed physician before starting any supplement, particularly if you are pregnant, nursing, taking prescription medications, managing a chronic liver condition, or have a personal or family history of prostate cancer.
Reviewed by Sarah Thompson, Registered Dietitian, focused on vitamin and mineral nutrition. See Sarah's author page for more of her work.
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