Coffee, tea, beetroot juice, grapefruit juice, chia seed water and fruit-infused water contain compounds researchers have studied for possible effects on liver fat, inflammation and liver enzymes, though diet and lifestyle remain the foundation of liver health.
By yourNEWS Media Newsroom.
What people drink each day can influence liver health, particularly when beverages high in added sugar or alcohol are replaced with options that provide antioxidants, fiber or other potentially beneficial compounds.
More than 100 million Americans are estimated to have some form of liver disease, including conditions involving excess liver fat and cirrhosis. Against that backdrop, researchers have increasingly examined whether common beverages could help lower the risk of liver damage or improve certain markers in people who already have fatty liver disease.
Among the drinks drawing attention are coffee, green and herbal teas, beetroot juice, grapefruit juice, chia seed water and water flavored with ingredients such as lemon, lime, cucumber or mint.
The evidence varies considerably from one drink to another, and none should be considered a treatment for liver disease. Some studies, however, have reported measurable associations with lower liver-disease risk, reduced liver fat or improvements in laboratory markers.
Coffee has some of the strongest evidence.
A 2021 study found that people drinking at least two cups of coffee per day had a 21% lower risk of developing chronic liver disease and a 20% lower risk of liver cancer.
Another large observational study followed more than 350,000 adults for approximately 13 years. Participants consuming more than five cups of coffee a day had a 32% lower risk of cirrhosis and a 47% lower risk of hepatocellular carcinoma, the most common form of primary liver cancer.
Importantly, researchers observed benefits among both caffeinated and decaffeinated coffee drinkers.
That finding suggests caffeine alone may not explain the relationship.
Coffee contains numerous plant compounds, including chlorogenic acid and other antioxidants, that have been studied for their ability to influence inflammation, oxidative stress and fat accumulation in the liver.
Theresa DeLorenzo, a dietitian at Russell Sage College, has said coffee’s antioxidant compounds may help reduce inflammation, support cellular health and limit liver-fat accumulation.
Spices such as cinnamon, ginger or turmeric can be added for flavor and additional plant compounds, although their effects should not be assumed to amplify coffee’s liver benefits in a predictable way.
Added sugar is another consideration.
The American Liver Foundation advises choosing coffee without large amounts of sugar because diets high in added sugar can contribute to excess calorie intake, insulin resistance and accumulation of fat in the liver.
Tea is another beverage frequently studied in people with fatty liver disease.
A 2020 research review found that regular green tea consumption was associated with reductions in alanine aminotransferase, or ALT, and aspartate aminotransferase, or AST, among people with fatty liver disease.
ALT and AST are enzymes commonly measured in blood tests. Elevated levels can occur when liver cells are inflamed or injured, although abnormal values can result from numerous conditions and do not diagnose liver disease by themselves.
Green tea contains catechins and other antioxidant compounds that researchers have investigated for effects on inflammation and oxidative stress.
Other teas and herbal infusions frequently used for liver health include ginger, turmeric and milk thistle preparations.
Milk thistle contains silymarin, a collection of plant compounds studied for antioxidant and anti-inflammatory effects. Laboratory and clinical research has explored whether silymarin can help protect liver cells and support processes involved in cellular repair, though evidence for treating specific liver diseases remains mixed.
Concentrated green tea extracts require more caution than ordinary brewed tea.
High-dose supplements containing green tea extract have been associated with rare cases of liver injury. Drinking traditionally prepared green tea and taking concentrated extracts therefore should not be treated as equivalent exposures.
Beetroot juice has drawn attention because of both its antioxidant content and high concentration of dietary nitrates.
The body converts dietary nitrates into nitric oxide, a molecule involved in blood-vessel relaxation and blood flow.
Researchers have also investigated beet pigments known as betalains for antioxidant and anti-inflammatory effects.
In a 12-week study published in 2023, adults with fatty liver disease who followed a Mediterranean-style diet and consumed beetroot juice experienced reductions in liver fat measured by ultrasound, along with improvements in liver enzymes and cholesterol.
Because the intervention combined beetroot juice with a Mediterranean diet, the study does not establish that the juice alone produced the improvements.
Grapefruit juice contains flavonoids including naringin, another compound studied for possible effects on liver tissue.
Laboratory and animal research has suggested naringin may reduce oxidative damage and help protect liver cells in models involving alcohol exposure.
Evidence in humans is less established, meaning grapefruit juice should not be viewed as a therapy for alcoholic or metabolic liver disease.
Grapefruit also has an important safety consideration: it can alter the metabolism of numerous prescription medications. People taking cholesterol drugs, blood-pressure medicines, immunosuppressants or certain other medications should check with a healthcare professional before regularly consuming large amounts of grapefruit or grapefruit juice.
Ordinary water can also support liver health indirectly by replacing sugar-sweetened drinks and helping maintain adequate hydration.
Adding lemon, lime, cucumber or mint may make water easier for some people to drink consistently.
Citrus fruits also provide vitamin C.
Research has examined whether vitamin C supplementation can affect liver health in people with fatty liver disease. In a 2021 study involving 84 participants, 1,000 milligrams of vitamin C daily was associated with improved insulin resistance.
Insulin resistance is strongly connected to metabolic fatty liver because high circulating insulin levels can encourage the liver to accumulate fat.
Other studies have reported changes in ALT and AST after vitamin C supplementation, although drinking lemon- or lime-infused water generally provides far less vitamin C than the doses used in supplementation trials.
Hydration itself supports normal circulation and kidney function, but claims that water directly “detoxifies” the liver can be misleading. The liver continuously processes nutrients, medications and waste products as part of normal physiology.
Chia seed water takes a different approach by adding substantial dietary fiber.
Two tablespoons of chia seeds contain about 10 grams of fiber.
Fiber contributes to regular bowel movements, can help with fullness and may improve several markers of metabolic health when included in an otherwise balanced diet.
That metabolic effect is particularly relevant to fatty liver disease because obesity, elevated triglycerides, insulin resistance and type 2 diabetes are major risk factors.
In one small study, people with fatty liver disease consumed 25 grams of ground chia seeds daily for eight weeks.
Researchers reported improvement in liver-related measures in approximately 52% of participants, including changes involving circulating fats and liver-fat accumulation.
The study was relatively small, so larger controlled trials would be needed to determine how consistently chia produces those results.
Taken together, the research does not point to a single beverage capable of protecting the liver by itself.
Coffee currently has some of the strongest observational evidence linking regular consumption with lower rates of cirrhosis, chronic liver disease and liver cancer.
Tea, beetroot juice, vitamin C-containing foods and chia seeds have shown potentially beneficial effects on liver enzymes, inflammation or metabolic markers in smaller studies.
Grapefruit contains compounds of scientific interest but has fewer human studies and can interact with medications.
More important than any one drink is the broader dietary pattern.
Limiting alcohol, reducing sugar-sweetened beverages, maintaining a healthy weight, remaining physically active and eating primarily whole foods are among the most established ways to reduce the risk of metabolic liver disease.
People who already have elevated liver enzymes, fatty liver, hepatitis, cirrhosis or other liver conditions should not rely on beverages or supplements in place of medical evaluation.
For many people, however, replacing heavily sweetened drinks or excessive alcohol with unsweetened coffee, tea, water or other nutrient-rich options can be a simple and relatively inexpensive way to support an overall liver-conscious diet.
Source: Natural News
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