Nonalcoholic fatty liver disease (NAFLD) is a prevalent condition in the United States, characterized by the accumulation of excess fat in the liver. Unlike alcohol-related liver disease, NAFLD is not caused by heavy alcohol use. It is often associated with conditions like obesity and type 2 diabetes. Since there is currently no medical treatment for NAFLD, the best treatment options are healthy eating habits and lifestyle. Depending on the state of liver damage, diet and lifestyle changes can even help reverse fatty liver disease in many people.
Understanding NAFLD
The two primary types of NAFLD are:
- Nonalcoholic fatty liver (NAFL): Fat accumulates in the liver without inflammation, though enlargement of the liver may lead to pain.
- Nonalcoholic steatohepatitis (NASH): This is accompanied by inflammation and can lead to cirrhosis and liver failure if left untreated. Sarcopenia is commonly observed in patients with nonalcoholic steatohepatitis cirrhosis.
In a healthy body, the liver is responsible for removing toxins and producing bile, a fluid that breaks down fats for digestion. Fatty liver disease impairs these functions. The first line of treatment for overweight or obese individuals with NAFLD is gradual weight loss through a combination of calorie reduction, exercise, and healthy eating.
General Dietary Recommendations for NAFLD
A nutrient-dense, whole-food-based diet rich in fiber, protein, and unsaturated fats is generally recommended for people with NAFLD. The primary diet used to support liver health includes one high in fruits and vegetables, healthy fats, whole grains, and lean or plant-based proteins. In general, the diet for fatty liver disease includes:
- Fruits and vegetables
- High fiber plants like legumes and whole grains
- Significantly reducing your intake of certain foods and beverages, including those high in added sugar, salt, refined carbohydrates, and saturated fat
- Limited alcohol
Fat should comprise a maximum of 30% of daily calories. If you’ve been diagnosed with fatty liver disease, your doctor may recommend working with a dietitian to make a sustainable meal plan.
Read also: Refresh Your Health with Liver Detox
Foods to Include in a Healthy Liver Diet
Certain key foods should be included when developing a fatty liver meal plan.
- Coffee: Regular coffee consumption is associated with a lowered risk of developing NAFLD, as well as a decreased risk of the advancement of liver fibrosis in those already diagnosed with NAFLD. Coffee also appears to lower the number of abnormal liver enzymes in people at risk for liver diseases.
- Spinach and Leafy Greens: Compounds found in spinach and other leafy greens may help fight fatty liver disease. Eating spinach specifically lowered the risk of NAFLD, possibly due to the nitrate and distinct polyphenols in the leafy green. Interestingly, the study focused on raw spinach, as cooked spinach did not have the same strong results. This could be because cooking spinach (and other leafy greens) may lower polyphenolic content and antioxidant activity.
- Legumes (Beans, Lentils, Soy): Both beans and soy have shown promise in reducing the risk of NAFLD. Legumes such as lentils, chickpeas, soybeans, and peas are not only nutritionally dense foods but also contain resistant starches that help improve gut health. Consumption of legumes may even help lower blood glucose and triglycerides in people with obesity. In addition, a 2019 study found diets rich in legumes specifically helped lower the likelihood of NAFLD. A few studies have also found that eating soy (whether replacing a serving of meat or fish or consuming miso soup, which contains fermented soy) may help protect the liver, though the evidence is mixed. Most likely, this is because soy contains a high content of the protein β-conglycinin - noted for its ability to help lower triglyceride levels and possibly protect against visceral fat buildup. Additionally, tofu is a low fat food that serves as a good source of protein, making it an ideal choice if you’re trying to limit your fat consumption.
- Oatmeal: Whole-grain, fiber-rich foods like oatmeal are associated with a reduced risk of NAFLD-related diseases. Studies have shown that a nutritious diet rich in high fiber foods like oats can be effective for those with NAFLD and may help reduce triglyceride levels. It is recommended that half of the grain-based products consumed daily should be made from whole grains. Whole grains include the three parts of the grain kernel: the bran, germ, and endosperm. Fiber may benefit liver function and help keep it working optimally.
- Nuts: A diet rich in nuts is associated with reduced inflammation, insulin resistance, oxidative stress, and a lower prevalence of NAFLD. A large study from China found that increased nut consumption was significantly associated with a lowered risk of NAFLD - and research has found that people with fatty liver disease who eat walnuts have improved liver function tests.
- Sunflower Seeds: While most research around NAFLD and vitamin E focuses on supplements, a 100-gram serving of sunflower seeds has about 20 milligrams of vitamin E, more than 100 percent of the Daily Recommended Value. If you want to increase your vitamin E consumption naturally, sunflower seeds are a good starting point.
- Garlic: This vegetable not only adds flavor to food, but small experimental studies also show that garlic powder supplements may help reduce body weight and fat in people with fatty liver disease. Regarding whole food consumption, a 2019 study found that frequent consumption of raw garlic was inversely associated with NAFLD in Chinese men (but not women).
- Fatty Fish (Salmon, Tuna, Sardines): Salmon and tuna - wild-caught being the best source - are rich in omega-3 fatty acids, which have been shown to provide protection for the liver and should be included in a fatty liver diet plan. Research suggests that supplementing with omega-3s may benefit those with NAFLD by reducing liver fat, boosting protective HDL cholesterol, and lowering triglyceride levels. Other nutrient-rich foods to include in a fatty liver diet plan are listed below.
Foods to Limit or Avoid
If you have fatty liver disease, your doctor may recommend avoiding certain foods - or at least eating them sparingly. These foods generally contribute to weight gain and can increase blood sugar. Just as there are foods to focus on including in a fatty liver diet plan, there are also foods that should be avoided. The foods listed below are linked with increased inflammation.
- Alcohol: Alcohol causes fatty liver and other liver diseases. As the liver detoxifies the alcohol, harmful substances are generated that cause inflammation and damage the cells of the liver. Beer, wine, liquor, and other alcohol should be limited or avoided.
- Foods with Added Sugar: Excess sugar, especially added sugars, is thought to significantly contribute to the development and progression of fatty liver disease. It is also associated with increased inflammatory markers in the body. High fructose corn syrup is another major contributor to fatty liver disease. Foods with high levels of added sugar, such as candy, sodas, and fruit juices, should be limited.
- Fried and Processed Foods: Fried foods are high in fat and calories, and many are high in saturated fats. Processed foods typically contain added sugars, salt, and other inflammatory-promoting compounds. Consumption of ultra-processed foods is associated with rises in inflammatory markers. Fried or highly processed foods, such as bread, rice, and pasta made from white flour, should be limited.
- Red Meat: Red meat, especially beef and pork, and other sources of added sodium should be limited.
- Saturated Fats: Steer clear of saturated fats, which lead to more fatty deposits in your liver. This includes: Poultry, except for lean white meat, Full-fat cheese, Yogurt, except low-fat, Red meat, Baked goods and fried foods made with palm or coconut oils.
- Trans Fats: These fats are typically found in fried foods and highly processed snacks, such as potato chips, candy bars, cookies, french fries, etc.
In many cases, practicing moderation - rather than complete elimination - can help create sustainable dietary changes.
Sample Meal Plan
Having a list of foods to eat when you are focusing on improving your liver’s health can help, but it can still be challenging to put meals together using the list. Here’s what a typical daily menu might look like.
- Breakfast: One-egg omelet with spinach, tomatoes and feta cheese and a piece of multigrain toast topped with avocado or Overnight oats (½ cup quick oats, 1 tbsp chia seeds, low-fat milk). Oatmeal (made with water or milk) with mixed nuts.
- Lunch: A bowl of bean and barley soup, a spinach salad, and a cup of strawberries. Chicken salad (Greek yogurt, light mayo, celery, salt, pepper, garlic powder).
- Dinner: Baked salmon, asparagus, and sweet potato (sheet pan or air fryer). Season with Mrs. Dash seasoning.
Lifestyle Changes to Improve Liver Health
In addition to modifying your diet, here are a few other lifestyle changes you can make to improve your liver health:
Read also: Is a Liver Reduction Diet Right for You?
- Get Active: Regular exercise can help you lose weight and manage your liver disease. Regular physical activity should be considered for patients with NAFLD, with a target of 150-300 minutes of moderate-intensity or 75-150 minutes of vigorous-intensity aerobic exercise per week. Resistance training exercise can be complementary to aerobic exercise and can have independent effects on NAFLD. Aim to get at least 30 minutes of aerobic exercise on most days of the week. A good rule of thumb? Focus on daily movement. Adding just 5 minutes a day can start increasing your stamina and improve your liver health over time. Slowly build up and aim to eventually hit the CDC recommended guidelines of 150 minutes of moderate activity per week. Engage Your Social Circle: Plan exercise with friends for accountability and enjoy meals with others.
- Lower Blood Lipid Levels: Watch your saturated fat and sugar intake to help manage your cholesterol and triglyceride levels. If diet and exercise changes aren’t enough to lower your cholesterol, consult a healthcare professional about your options for medication.
- Manage Diabetes: Diabetes and fatty liver disease often occur together. A balanced diet and regular exercise can help you manage both conditions. If your blood sugar is still high, a healthcare professional can prescribe medication to lower it. Patients with NAFLD should be evaluated for coexisting metabolic conditions, such as obesity, diabetes mellitus, hypertension, dyslipidemia and cardiovascular disease.
Fats and Liver Health
Did you know that not all fats are the same?
- Monosaturated Fats: Monosaturated fats are found in delicious items like avocados, eggs, nuts, olives and olive oil.
- Polysaturated Fats: Fatty fish (salmon, tuna, sardines and mackerel), flaxseed, sunflower seeds and walnuts are great ways to boost omega-6 and omega-3 fatty acids.
- Saturated Fats: To keep these fats to a minimum, limit consumption of full-fat dairy products and red meats.
- Trans Fats: These fats are typically found in fried foods and highly processed snacks, such as potato chips, candy bars, cookies, french fries, etc.
Balance is essential when it comes to dietary fats-too much of even a beneficial fat can be harmful. Aim for a well-rounded diet and consult your doctor or a registered dietitian before making any significant changes.
Hydration and Liver Health
Staying hydrated, especially in the summer, can be challenging.
- Fruit-Infused Water: Elevate your hydration game by infusing water with fruits like lemon, lime, berries, or oranges.
- Coconut Water: Add a splash to your water or even swap it out for plain coconut water.
- Make it Sparkle: Use carbonated water to give your hydration some pizzazz.
- Freeze it: Make ice pops or even ice cubes with 100% fruit juice.
- Hydrating Foods: Not all hydration has to come from what we drink. In fact, a large part of our hydration comes from food!
The Mediterranean Diet and NAFLD
The Mediterranean-style diet emphasizes vegetables, fruits, whole grains, beans, and legumes, while limiting processed foods, sugary drinks, added sugars, saturated fats, and refined carbohydrates. It also includes products like low-fat or fat-free dairy, fish, poultry, nuts, and certain oils. This is one reason why the Mediterranean diet is sometimes recommended for individuals living with NAFLD. It focuses on minimally processed whole foods containing unsaturated fat. It’s also high in vegetables, fruit, and legumes, all of which aid its ability to help reduce total cholesterol. Eating a Mediterranean diet can help you lose weight. Losing 5% to 10% of body weight can significantly improve MASLD. The Mediterranean diet is rich in fruits, vegetables, lean proteins and healthy fats. It's high in fiber, vitamins, minerals and polyphenols, which are plant compounds that contain antioxidants and anti-inflammatory properties.
Common Misconceptions About Liver Health
The liver is one of the most vital organs in our body, responsible for natural detoxification, metabolism, and countless other functions essential for our well-being. However, there are many misconceptions surrounding liver health that can lead to confusion and unnecessary concern.
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- Misconception: The liver needs special diets or cleanses to detoxify. Fact: While it's true that the liver plays a crucial role in detoxifying the body, it does not require special diets or cleanses to function optimally. The liver naturally eliminates toxins from the body through processes such as filtering blood and producing bile.
- Misconception: Alcohol is the only cause of liver damage. Fact: It’s true that excessive alcohol consumption and drug use can lead to liver damage, including conditions like steatotic liver disease, hepatitis, and cirrhosis; however those are not the only causes.
- Misconception: Liver damage is always obvious. Fact: Unlike some organs, the liver can often function normally even when damaged, showing few or no symptoms in the early stages of disease. Symptoms such as fatigue, yellowing of the skin (jaundice), abdominal pain, and swelling may appear only when liver damage is advanced.
- Misconception: Supplements can cure liver disease. Fact: There is no magic pill or supplement that can cure liver disease or prevent damage on its own. In fact, many supplements are unregulated and can negatively affect liver health.
Understanding the truth about liver health is crucial for making informed decisions about your lifestyle and well-being. Preventive healthcare is the practice of the things we do to stay healthy. For example, attending regular appointments with your doctor, scheduling any eligible annual screenings, or attending counseling to stay healthy. Preventative healthcare is fundamental to maintaining long-term health and well-being, and early detection is key to managing many diseases and conditions, including liver disease. Early Detection of Health Issues: Regular screenings and routine check-ups may enable the early identification of potential health problems. With liver disease, early detection is especially crucial as it allows for timely intervention. Liver conditions such as steatotic (fatty) liver disease, hepatitis, and cirrhosis often progress silently, with little to no symptoms. Health Maintenance: Monitoring liver function through bloodwork and imaging helps to assess the liver’s overall health. Cost Efficiency: By addressing liver disease and other health issues before they escalate, preventive care can reduce the need for more complex and costly treatments later. Empowerment: Regular appointments with your healthcare team provide valuable insights and guidance on maintaining your health.
Alternative Names for NAFLD
Lifestyle changes - including diet and weight loss - are the main ways to prevent and manage metabolic dysfunction-associated steatotic liver disease (MASLD), formerly called nonalcoholic fatty liver disease (NAFLD). A healthy diet can help reduce fat and inflammation in the liver, potentially reversing MASLD and a more serious form of liver disease called metabolic dysfunction-associated steatohepatitis (MASH).
The Plate Method
When planning your meals, use the plate method for best results.
- Vegetables. Aim for at least three servings of vegetables daily. One serving is equal to 1 cup raw or 1/2 cup cooked vegetables. In-season vegetables and fresh frozen options without sauce are best. Focus on nonstarchy vegetables such as asparagus, broccoli, carrots and spinach.
- Fruits. Get at least two servings of fruit daily. One serving is equal to 1 cup of fresh fruit. Choose fresh or frozen fruits or fruit canned in its own juice. Drain the juice in canned fruit before eating.
- Fish and seafood. Aim for three or more servings of fish and seafood a week. One serving is 3 to 5 ounces, which is about the size of a deck of cards.
- Poultry and eggs. White meat chicken without the skin and eggs are good sources of protein. One serving of chicken is 3 ounces, which is about the size of a deck of cards.
- Legumes and beans. Eat three or more servings a week of legumes and beans. One serving equals half a cup.
- Whole grains.
- Nuts and seeds. Aim for four servings of nuts and seeds a week. One serving equals 1/4 cup.
- Healthy fats. When cooking, use a healthy, unsaturated fat such as olive oil. Grapeseed and avocado oils are also healthy oils. These plant-based oils are liquid at room temperature and can be used instead of butter or margarine. Don't use oils with the terms "hydrogenated" or "partially hydrogenated" on their nutrition labels.
- Sugar-free beverages. Water, tea and coffee - without added sugar - are the best ways to quench your thirst.
- Polyphenols. These plant compounds are found in black coffee, green tea and walnuts.
Potential Benefits of Vitamins and Supplements
Some studies have suggested that certain vitamins and supplements may help improve MASLD. For instance, omega-3 fatty acids may improve liver fat in people with MASLD. Vitamin E may have a role in improving liver fat and inflammation in MASLD. However, more information is needed to confirm these findings.
Seeking Professional Guidance
Learning to follow a healthy, low-inflammation diet to help minimize the effects of fatty liver disease may seem daunting. A dietitian can help you understand what dietary changes are beneficial and why and help you make small, sustainable changes that also incorporate your personal needs and food preferences.patients create and follow a personalized Lyme disease diet. If you have NAFLD or are worried you may be at risk, work with a trusted healthcare professional to come up with a treatment plan. Changing the way you eat can take time. Talk with your healthcare team about creating a healthy diet plan.