Hawthorn procyanidin extract significantly reduced fatty liver disease in mice by activating liver proteins that control fat storage and restoring healthy gut bacteria balance, according to a 2026 study published in Food & Function. Gram Research analysis shows the extract lowered cholesterol and triglycerides while reducing liver fat accumulation by changing bile acid metabolism. However, human clinical trials are needed before this plant-based compound can be recommended as a treatment for people.
Researchers discovered that hawthorn procyanidin extract, a natural compound from hawthorn berries, can help reverse fatty liver disease in mice by changing how the gut bacteria work and activating a special liver protein. According to Gram Research analysis, the extract lowered cholesterol and triglycerides while reducing fat accumulation in liver cells. The study suggests hawthorn works by improving the balance of bile acids—digestive compounds that help break down fats—and restoring healthy gut bacteria. This research could lead to new plant-based treatments for nonalcoholic fatty liver disease, a condition affecting millions of people worldwide.
Key Statistics
A 2026 research article found that hawthorn procyanidin extract significantly lowered total cholesterol, triglycerides, and LDL cholesterol in mice with high-fat diet-induced fatty liver disease while preventing excessive lipid droplet accumulation.
According to research reviewed by Gram, hawthorn extract restored healthy gut bacteria balance in mice with fatty liver disease by altering the profile of bile acids, including marked reductions in ωMCA, TαMCA, TβMCA, and DCA.
A 2026 study demonstrated that hawthorn procyanidin extract works by activating the FXR liver protein and downregulating SREBP1, a master switch for fat production, through the FXR-FGF15 pathway that controls bile acid circulation.
The Quick Take
- What they studied: Whether hawthorn berry extract could reverse fatty liver disease by changing gut bacteria and activating liver proteins that control fat storage
- Who participated: Mice fed a high-fat diet to develop fatty liver disease, plus human liver cells grown in a lab and treated with a fatty acid
- Key finding: Hawthorn procyanidin extract significantly reduced fat buildup in the liver, lowered cholesterol and triglycerides, and restored healthy gut bacteria balance
- What it means for you: This suggests hawthorn extract might help people with fatty liver disease, though human studies are needed before it can be recommended as a treatment. Talk to your doctor before trying supplements.
The Research Details
Scientists used two approaches to test hawthorn extract. First, they treated human liver cells in a lab dish with a fatty acid to mimic fatty liver disease, then added hawthorn extract to see if it helped. Second, they fed mice a high-fat diet to give them fatty liver disease, then gave some mice hawthorn extract while others got nothing. They measured liver fat, cholesterol levels, and gut bacteria in both experiments.
The researchers also used a special blocker to turn off a liver protein called FXR to prove that hawthorn works through this specific pathway. This is like removing one piece from a puzzle to confirm it’s essential for the whole picture to work.
They analyzed bile acids—digestive compounds that help break down fats—and found that hawthorn changed which types were present in the liver and gut. They also looked at gut bacteria composition to see how the microbiome changed.
This research design is important because it tests hawthorn at multiple levels: in isolated cells, in living animals, and by identifying the exact biological mechanism. This multi-level approach gives stronger evidence that the effect is real and not just coincidence. By blocking the FXR protein, researchers proved that hawthorn specifically works through this pathway, not through random effects.
The study used both cell and animal models, which is stronger than testing in cells alone. However, animal studies don’t always translate to humans—mice metabolize compounds differently than people do. The research was published in Food & Function, a peer-reviewed journal. The specific sample size for animal studies wasn’t provided in the abstract, which limits our ability to assess statistical power. Human clinical trials are needed to confirm these findings apply to people.
What the Results Show
Hawthorn procyanidin extract significantly reduced fat accumulation in liver cells and prevented the buildup of lipid droplets—the storage form of fat in cells. In mice with fatty liver disease, the extract lowered total cholesterol, triglycerides, and LDL cholesterol (the “bad” cholesterol), while also reducing the amount of fat stored in liver tissue.
The extract worked by activating a liver protein called FXR and another protein called CYP7A1, which control how the body makes and processes bile acids. Bile acids are digestive compounds that help break down fats and signal the body to stop making new fat. When hawthorn activated these proteins, it essentially told the liver to stop storing excess fat.
The research showed that hawthorn restored the balance of different types of bile acids in both the liver and gut. Specifically, it reduced certain bile acids (ωMCA, TαMCA, TβMCA, and DCA) that were elevated in mice eating a high-fat diet. This change in bile acid profile was directly linked to the restoration of healthy gut bacteria, suggesting the gut microbiome plays a crucial role in how hawthorn works.
The study found that hawthorn downregulated SREBP1, a protein that acts like a master switch for fat production in the liver. When this protein is less active, the liver makes less new fat. The extract also improved the communication between the liver and intestines through the FXR-FGF15 pathway, which controls how bile acids circulate between these organs. This improved communication helped restore the normal balance of gut bacteria that had been disrupted by the high-fat diet.
Previous research has shown that hawthorn has lipid-lowering and liver-protective properties, but the exact mechanisms weren’t clear. This study builds on that knowledge by identifying the specific biological pathways involved. The findings align with emerging research showing that gut bacteria and bile acid metabolism are central to fatty liver disease, supporting the growing understanding that treating the gut microbiome may help treat liver disease.
This study was conducted in mice and lab-grown human cells, not in living people. Mice have different metabolism and genetics than humans, so results may not directly apply to people. The study didn’t test different doses of hawthorn extract or compare it to existing fatty liver treatments. No human clinical trials have been conducted yet, so we don’t know if hawthorn extract would be safe or effective in people with fatty liver disease. The abstract doesn’t specify the exact number of mice used, making it difficult to assess whether the sample size was adequate.
The Bottom Line
Based on this research, hawthorn extract shows promise as a potential treatment for fatty liver disease, but it’s too early to recommend it as a standard treatment. The evidence is strong in animal models (confidence level: moderate for mechanism, low for human application). Anyone with fatty liver disease should focus on proven approaches: losing weight, reducing sugar and alcohol intake, and exercising regularly. If interested in hawthorn supplements, consult a doctor first, as supplements can interact with medications.
This research is most relevant to people with nonalcoholic fatty liver disease (NAFLD), which affects about 25% of adults worldwide. It’s also relevant to researchers studying natural treatments for liver disease and to supplement companies developing new products. People with liver disease, those taking medications that affect liver function, and pregnant women should not use hawthorn supplements without medical supervision.
In the mouse studies, hawthorn extract showed effects relatively quickly, but the exact duration of treatment wasn’t specified in the abstract. If hawthorn were developed into a human treatment, it would likely take weeks to months to see improvements in liver fat and cholesterol levels, similar to other liver disease treatments. Long-term use would probably be necessary to maintain benefits.
Frequently Asked Questions
Can hawthorn extract treat fatty liver disease in humans?
Hawthorn extract shows promise in mouse studies and lab cells, but human clinical trials haven’t been conducted yet. Current evidence is too limited to recommend it as a treatment. People with fatty liver disease should focus on proven approaches like weight loss, reducing sugar intake, and exercise while consulting their doctor about supplements.
How does hawthorn extract help the liver?
Hawthorn activates a liver protein called FXR that controls fat storage and bile acid metabolism. It also restores healthy gut bacteria balance by changing bile acid profiles. This multi-level effect reduces fat accumulation in liver cells and lowers cholesterol and triglycerides in the bloodstream.
Is hawthorn extract safe to take as a supplement?
Hawthorn has a long history of traditional use, but supplement safety depends on dose, purity, and individual health conditions. It can interact with heart medications and blood thinners. Anyone considering hawthorn supplements should consult their doctor first, especially those with liver disease or taking medications.
What is the connection between gut bacteria and fatty liver disease?
Gut bacteria influence how the body processes bile acids and absorbs nutrients, which affects liver fat storage. A high-fat diet disrupts healthy bacteria balance, worsening fatty liver disease. Hawthorn extract appears to work partly by restoring beneficial bacteria, suggesting that treating the microbiome may help treat the liver.
When will hawthorn extract be available as a fatty liver treatment?
Human clinical trials are needed before hawthorn extract can be approved as a medical treatment. This typically takes 5-10 years. Hawthorn supplements are currently available over-the-counter, but they’re not proven to treat fatty liver disease in people and aren’t regulated as strictly as medications.
Want to Apply This Research?
- Track liver health markers: record any blood test results showing ALT, AST, and triglyceride levels monthly. Note dietary changes (especially high-fat foods avoided) and exercise minutes daily. If using hawthorn supplements, log daily intake amount.
- Users could set a daily reminder to take hawthorn extract at the same time each day, log their meals to identify high-fat foods to reduce, and track weekly exercise minutes. The app could provide educational content about fatty liver disease and show progress toward cholesterol and triglyceride reduction goals.
- Establish a baseline with current blood work (ALT, AST, triglycerides, cholesterol). Retest every 3 months to track changes. Use the app to monitor consistency with supplement use and lifestyle changes. Create alerts for doctor appointments to discuss liver health progress.
This research is based on animal studies and laboratory experiments, not human clinical trials. Hawthorn extract is not approved by the FDA as a treatment for fatty liver disease. Do not use hawthorn supplements to replace medical treatment or lifestyle changes recommended by your doctor. Hawthorn can interact with heart medications, blood thinners, and other drugs. Pregnant women, nursing mothers, and people with liver disease should not use hawthorn supplements without medical supervision. Always consult your healthcare provider before starting any supplement, especially if you have fatty liver disease or take medications. This article is for educational purposes only and should not be considered medical advice.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.