Your liver performs over 500 functions, from filtering toxins out of your blood to converting food into usable energy, and it does most of this work silently. Keeping it healthy comes down to a handful of consistent habits: what you eat, how much you move, what you drink, and which medications you watch out for. Most liver damage builds gradually over years, which means small daily choices have an outsized impact.
What Your Liver Actually Does
Every drop of blood leaving your stomach and intestines passes through the liver before circulating to the rest of your body. The liver processes that blood, breaks down nutrients, neutralizes drugs into forms your body can use or safely discard, and removes bacteria. It produces bile to help digest fats, manufactures proteins essential for blood clotting and immune defense, stores iron, converts excess sugar into a storage form called glycogen, and turns toxic ammonia (a byproduct of protein digestion) into urea so your kidneys can flush it out.
When the liver breaks down harmful substances, waste exits the body through two routes: bile carries some byproducts into the intestines and out as stool, while the rest filters through the kidneys and leaves as urine. This dual-exit system runs constantly, which is why sustained damage to the liver affects nearly every other organ.
Eat a Plant-Forward, Mediterranean-Style Diet
The single most studied dietary pattern for liver health is the Mediterranean diet: heavy on vegetables, fruits, whole grains, legumes, nuts, olive oil, and fish, with limited red meat and processed food. Meta-analyses of dietary interventions in people with fatty liver disease show that this pattern significantly reduces liver enzyme levels (a marker of liver cell damage), liver fat content, and liver stiffness, which is an early sign of scarring.
What makes this pattern effective isn’t one magic ingredient. It reduces the overall inflammatory load on your body while delivering fiber, healthy fats, and antioxidants that support the liver’s repair processes. You don’t need to follow a rigid meal plan. Shifting toward more vegetables, legumes, whole grains, and fish while cutting back on processed foods gets you most of the benefit.
Cut Back on Added Sugar, Especially Fructose
Fructose, the sugar found in soft drinks, fruit juice concentrates, and many packaged foods, is uniquely hard on the liver. Unlike glucose, which gets distributed throughout the body for energy, fructose is almost entirely extracted by the liver on its first pass through. The liver then converts much of it directly into fat through a process called de novo lipogenesis. This makes fructose an exceptionally efficient driver of fat accumulation in liver cells. Whole fruit contains fructose too, but the fiber slows absorption enough that the liver can handle it. The real problem is liquid sugar: sodas, sweetened teas, fruit juices, and energy drinks.
Move Your Body Regularly
Exercise reduces liver fat even when body weight stays the same, though it works best alongside modest weight loss. In a head-to-head comparison, aerobic exercise (brisk walking, cycling, swimming) was significantly more effective than resistance training at reducing liver fat and visceral fat. The aerobic protocol that showed clear results was the equivalent of about 12 miles of walking or jogging per week at a moderate-to-vigorous pace. That works out to roughly 150 to 200 minutes per week.
Resistance training still reduced some types of abdominal fat but didn’t improve liver fat or liver enzymes as reliably. The practical takeaway: prioritize cardio for your liver, and add strength training for its many other benefits. If you’re currently sedentary, even starting with 30-minute walks most days of the week makes a measurable difference.
Maintain a Healthy Weight
Excess body weight, particularly fat stored around the midsection, is the strongest modifiable risk factor for fatty liver disease. The condition now known as metabolic dysfunction-associated steatotic liver disease (MASLD, formerly called NAFLD) affects roughly one in four adults globally and is closely tied to being overweight, having insulin resistance, or carrying high blood pressure or abnormal cholesterol levels.
The good news is that even modest weight loss produces real results. Losing just 3 to 5 percent of your body weight (about 6 to 10 pounds for someone weighing 200 pounds) is enough for fat to start disappearing from liver cells. A greater loss of around 10 percent is needed to improve inflammation and early scarring. You don’t need to reach an “ideal” weight. Gradual, sustained loss in that 5 to 10 percent range delivers the most meaningful liver benefits.
Limit Alcohol
Alcohol is processed almost entirely by the liver, and chronic heavy drinking is the most direct path to liver scarring and cirrhosis. The CDC defines moderate drinking as two drinks or fewer per day for men and one drink or fewer per day for women. But even moderate drinking raises the risk of liver damage compared to not drinking at all. If you already have any form of liver disease, the recommendation is to avoid alcohol entirely.
A “drink” means 12 ounces of beer, 5 ounces of wine, or 1.5 ounces of liquor. Binge drinking, even if infrequent, is particularly harmful because it floods the liver with more toxins than it can process at once, causing acute inflammation that compounds over time.
Be Careful With Medications
Acetaminophen (the active ingredient in Tylenol and many cold, flu, and pain combination products) is the most common cause of drug-induced liver injury in developed countries. The FDA sets the maximum recommended dose at 4,000 milligrams per day across all products combined. The risk spikes when people unknowingly take multiple products containing acetaminophen, such as a headache pill and a cold medicine, or when they combine it with alcohol.
Check the labels of every over-the-counter medication you take. Acetaminophen appears in hundreds of combination products under various brand names. If you drink regularly, your safe threshold is lower than 4,000 mg. Ibuprofen and naproxen carry their own risks for the stomach and kidneys but are generally easier on the liver for occasional use.
Drink Coffee
Coffee is one of the few dietary habits consistently linked to better liver outcomes across large population studies. People who drink more than three cups of coffee per day show reduced liver stiffness and lower risk of progressive liver disease, even after adjusting for other lifestyle factors. The benefit appears to come from compounds in coffee itself, not just caffeine, since decaf shows some protective effect as well, though the data is strongest for regular coffee.
This doesn’t mean you should force yourself to drink coffee if you don’t enjoy it, but if you already drink it, there’s good reason to keep going.
Skip the Liver Supplements
Milk thistle is the most widely marketed liver supplement, but the clinical evidence doesn’t support the claims on the bottle. A review published in The American Journal of Medicine found no difference in liver enzyme levels, liver tissue appearance on biopsy, or mortality between people taking milk thistle and those taking a placebo. A tiny reduction in one liver enzyme appeared in some subgroups, but it was so small as to be clinically meaningless and disappeared entirely when only higher-quality, longer-duration studies were analyzed.
Other popular “liver detox” or “liver cleanse” supplements face the same problem: little to no rigorous evidence, and in some cases, herbal products themselves have caused liver injury. Your liver already detoxifies your blood continuously. No supplement replicates or meaningfully enhances that process.
Know Your Numbers
Routine blood work can catch liver problems long before symptoms appear. The key markers are ALT (normal range: 7 to 55 units per liter), AST (8 to 48 U/L), and GGT (8 to 61 U/L). These enzymes leak into the blood when liver cells are damaged or inflamed. Levels above the normal range don’t always mean serious disease, but persistently elevated numbers warrant further investigation, usually starting with an ultrasound.
Most adults get these tested as part of a standard metabolic panel during routine physicals. If you have risk factors for liver disease, such as being overweight, having diabetes, or drinking heavily, ask specifically about your liver enzyme results rather than assuming “everything’s normal” from a general checkup. Fatty liver disease in particular causes no symptoms in its early stages, making blood tests the only reliable early warning system.