Madeleine Hull
The liver is one of the most vital organs in the body, responsible for detoxification, metabolism, and other essential functions. While the liver naturally eliminates toxins, dietary choices can promote liver health. A well-rounded, nutritious diet rich in fibre, lean or plant-based protein, and healthy fats is ideal for improving liver health, lowering disease risk, and promoting weight loss. Foods such as berries, garlic, green tea, coffee, fatty fish, legumes, leafy greens, nuts, and whole grains are beneficial for liver health. Additionally, staying active, maintaining a moderate weight, and reducing alcohol intake are important lifestyle changes that can improve liver function.
What to add to your diet for liver health:
| Characteristics | Values |
|---|---|
| Fruits & Vegetables | Berries, melons, cucumbers, peaches, kiwi, carrots, broccoli, lettuce, grapefruit, blueberries, cranberries |
| Whole grains | Whole meal bread, whole wheat couscous, brown rice |
| Lean protein | Fatty fish (salmon, sardines, tuna, trout), legumes, tofu, poultry, eggs, low-fat or fat-free dairy |
| Healthy fats | Olive oil, nuts, avocado, coconut water |
| Herbs & spices | Oregano, sage, rosemary, cinnamon, curry powder, cumin |
| Beverages | Coffee, green tea |
| Other | Legumes, oatmeal, garlic |
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What You'll Learn
Coffee, olive oil, and green tea
Firstly, coffee has been shown to protect the liver from disease, even for those who already have liver concerns. Studies have found that coffee drinkers are less likely to develop fibrosis and cirrhosis, two diseases that affect the liver. Coffee also helps to slow the growth of scar tissue in the liver, which can help to fight liver cancer. The acids in coffee are also thought to work against the virus that causes hepatitis B.
Olive oil is another beneficial addition to your diet for liver health. Olive oil is considered a healthy fat due to its many health benefits, including positive effects on liver health. An olive oil-rich diet decreases the accumulation of triglycerides in the liver, which is a key issue in non-alcoholic fatty liver disease. Olive oil also improves postprandial triglycerides, glucose, and glucagon-like peptide-1 responses, as well as upregulating glucose transporter-2 expression in the liver.
Green tea has been shown to have both preventive and therapeutic effects on liver disease. It helps to regulate lipid metabolism, reducing the accumulation of lipids in the liver. Green tea also contains polyphenolic antioxidants, which offer a protective effect against malignant changes in the liver.
In summary, coffee, olive oil, and green tea all have beneficial properties that can help to improve liver health and reduce the risk of liver disease. However, it is important to note that while these additions to your diet can support liver health, maintaining a healthy liver also depends on other lifestyle factors, such as moderate alcohol consumption and regular exercise.
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Fruits, vegetables, whole grains, legumes, nuts, and seeds
A healthy liver is crucial for overall health. An unhealthy liver can lead to metabolic disorders and liver disease. While no individual foods can prevent or cure liver disease, certain dietary choices can promote liver health.
Fruits
Blueberries, cranberries, and grapes are rich in fibre and contain antioxidants, including anthocyanins and resveratrol, which have been linked to reduced liver damage and improved hepatic steatosis. Grapefruit may also benefit liver health by helping prevent damage and inflammation.
Vegetables
Broccoli, cauliflower, Brussels sprouts, and mustard greens are all cruciferous vegetables that are good for the liver. They are a source of fibre, antioxidants, and phytochemicals, which support liver health by reducing inflammation and oxidative stress.
Whole grains
Whole grains have been shown to have beneficial effects on hepatic steatosis and liver enzymes in patients with non-alcoholic fatty liver disease (NAFLD). A randomised controlled trial found that consuming whole grains for 12 weeks significantly decreased grades of NAFLD and reduced serum concentrations of harmful enzymes.
Legumes
Legumes, including beans, lentils, and peas, have been associated with a lower risk of NAFLD. A case-control study among Tehrani adults found that a greater intake of legumes was linked to a reduced risk of NAFLD, even after adjusting for potential confounders.
Nuts
Nuts have been linked to a reduced risk of NAFLD, particularly in females. While the evidence is inconclusive, studies suggest that nut intake may have a protective effect on the liver.
Seeds
Papaya seeds are packed with nutrients, including fibre, antioxidants, and healthy fats. They may help fight infections, especially intestinal infections, due to their content of proteolytic enzymes. However, it is important to consume papaya seeds in moderation to avoid any potential side effects.
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Lean proteins, leafy greens, and berries
Lean Proteins
Protein is essential for those with liver disease, as it helps prevent the breakdown of protein in the liver. It is recommended to eat about 1.2 to 1.5 grams of protein per kilogram of body weight. For example, a 154-pound (70-kilogram) man should consume 84 to 105 grams of protein per day. It is advised to opt for lean protein sources, such as legumes, poultry, and fish. These foods provide the body with the protein it needs while also being lower in fat, which is beneficial for liver health.
Leafy Greens
Leafy greens and other vegetables are recommended for liver health due to their nutrient density and antioxidant content. Antioxidants help reduce inflammation, ease oxidative stress, and prevent cell damage. Some suggested leafy greens and vegetables include whole grains, such as wholemeal bread, whole wheat couscous, and brown rice, as well as vegetables like carrots, broccoli, and lettuce.
Berries
Berries, such as blueberries, cranberries, and grapes, are rich in anthocyanins, which are antioxidants that give them their distinctive colors. These antioxidants have been linked to various health benefits, including improved liver health. A 2021 study found that taking a cranberry supplement for six months improved hepatic steatosis (fatty liver) in people with NAFLD. Additionally, blueberry extract has been shown to inhibit the growth of human liver cancer cells in test-tube studies, although further research is needed to confirm these effects in humans.
By incorporating these foods into your diet, you can support and promote liver health, reducing the risk of liver-related issues in the future.
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Fatty fish and plant-based proteins
Fatty fish, such as mackerel, Pacific saury, and Spanish mackerel, are excellent sources of omega-3 fatty acids. These healthy fats help reduce inflammation and have been linked to a lower risk of heart disease. A 2016 analysis found that omega-3 fatty acids helped lower liver fat and triglycerides in people with non-alcoholic fatty liver disease (NAFLD) or nonalcoholic steatohepatitis. Additionally, the monounsaturated and polyunsaturated fatty acids (MUFAs and PUFAs) found in fatty fish can reduce lipid accumulation in the liver by affecting the activity of antioxidative enzymes.
However, it is important to note that the way fish is cooked can affect its benefits. Deep-frying fish and adding saturated fat during cooking can denature proteins and negate the positive effects of fish consumption. Therefore, it is recommended to seek guidance from a liver specialist or dietitian to ensure that the preparation methods align with the goal of improving liver health.
When incorporating fatty fish into your diet, it is also crucial to consider the ratio of omega-3 fats to omega-6 fats. Most people exceed the recommended intake of omega-6 fats, which are found in many plant oils and butter. While adding omega-3 fats to your diet, reducing your intake of omega-6 fats that promote inflammation may be beneficial.
Plant-based proteins offer a wealth of benefits for liver health. A well-balanced diet that includes a variety of plant-based foods can boost the overall function of the liver. Specifically, incorporating vegetables and plant-based options that are high in antioxidants, low in cholesterol, and packed with nutrients will enhance liver function. Antioxidants play a crucial role in reducing inflammation, easing oxidative stress, and preventing cell damage in the liver.
Additionally, a plant-based diet can help reduce the consumption of alcohol, medications, and sugar, which are known to be detrimental to liver health. It is important to examine the ingredients in processed foods and strive to cut out as much of these as possible to avoid toxins that can harm the liver. A plant-based approach aligns with the Mediterranean-style diet, which emphasizes vegetables, fruits, whole grains, beans, legumes, and healthy fats while limiting processed foods and sugary drinks.
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Water, coconut water, and herbal teas
Water is essential for liver health. Staying hydrated helps the liver flush out toxins and function properly. Men should aim for at least 15 cups of fluid daily, while women need about 11 cups. These fluids can include water, soup, broth, herbal teas, and fruit juices. It is important to limit sugary beverages, as they can contribute to liver fat accumulation and obesity.
Coconut water, specifically tender coconut water (TCW), is a natural plant-based product that has been shown to protect the liver from chemical toxin-induced injury and reduce inflammation. It is rich in phytochemicals and contains bioactive compounds such as vitamins, minerals, sugars, amino acids, peptides, proteins, and phytohormones. TCW has been found to improve hepatocyte viability and protect against cytokine-mediated cell death.
Herbal teas, in general, can be a part of the recommended fluid intake for liver health. While specific studies on herbal teas are limited, certain herbs are known to have beneficial effects on the liver. Milk thistle, also known as silymarin, has been used for over 2,000 years to treat bile duct and liver conditions. Research suggests that it has liver-protective properties, strong antioxidant effects, and may promote liver cell regeneration. Another herb, garlic, is often included in herbal remedies. It contains potent antioxidant and anti-inflammatory compounds, which may support liver health. A 2020 study found that garlic powder supplementation significantly reduced liver fat accumulation and improved liver enzyme levels.
Green tea, while not technically an herb, is often included in literature reviews of herbal remedies for liver conditions. Some studies suggest that green tea extract may help treat liver disease. For example, a 2016 study found that supplementing with green tea extract reduced liver damage markers in people with nonalcoholic fatty liver disease (NAFLD).
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Frequently asked questions
There are many foods that can be added to your diet to improve liver health, including:
- Leafy greens like spinach
- Fruits and vegetables
- Whole grains
- Beans
- Legumes
- Lean meats
- Fatty fish
- Nuts
- Berries
- Garlic
- Green tea
- Coffee
Foods that are highly processed, fatty, and sugary are harder for the liver to process and can contribute to liver damage over time. Alcohol can also negatively affect liver function.
Yes, in addition to water, coffee and green tea have been shown to promote liver health.
Yes, in addition to diet, regular exercise can help improve liver health. Maintaining a moderate weight is also important, as obesity can increase the risk of non-alcoholic fatty liver disease (NAFLD).
