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In today’s fast-paced world, our waking hours are filled with decisions — often surrounding what to eat. After a long day, dinner could well be fast food or takeout. While you may worry about the toll food choices take on your waistline or blood pressure, as a liver specialist, I also want to put fatty liver disease on your radar.

One variant, officially called nonalcoholic fatty liver disease (NAFLD), now affects one in four adults globally. Sometimes it progresses to extensive scarring known as cirrhosis, liver failure, and higher risk for liver cancer. The good news? Fatty liver disease can be prevented or reversed.

What is fatty liver disease?

Fatty liver disease is a condition caused by irritation to the liver. Liver tissue accumulates abnormal amounts of fat in response to that injury. Viral hepatitis, certain medicines (like tamoxifen or steroids, for example), or ingesting too much alcohol can all cause fatty liver disease.

However, NAFLD has a different trigger for fat deposits in the liver: a group of metabolic risk factors. NAFLD is most common in people who have high blood pressure, high cholesterol, insulin resistance (prediabetes), or type 2 diabetes. It is also common among people who are overweight or obese, though it is possible to develop NAFLD even if your body mass index (BMI) is normal.

What helps prevent or reverse NAFLD?

Diet can play a huge role. Because NAFLD is so closely tied to metabolic health, eating more healthfully can help prevent or possibly even reverse it. A good example of a healthful eating pattern is the Mediterranean diet.

Overweight or obesity is a common cause of NAFLD. A weight loss program that includes activity and healthy eating can help control blood pressure, cholesterol, and blood sugar. Among the many healthful diet plans that help are the DASH diet and the Mediterranean diet. Talk to your doctor or a nutritionist if you need help choosing a plan.

To vigorously study any diet as a treatment for fatty liver disease, researchers must control many factors. Currently, no strong evidence supports one particular diet over another. However, the research below highlights choices to promote a healthy liver.

Avoid fast food

A recent study in Clinical Gastroenterology and Hepatology linked regular fast-food consumption (20% or more of total daily calories) with fatty liver disease — especially in people who had type 2 diabetes or obesity. Fast foods tend to be high in saturated fats, added sugar, and other ingredients that affect metabolic health.

Steer clear of soft drinks and added sugars

Soft drinks with high-fructose corn syrup, or other sugar-sweetened beverages, lead directly to large increases in liver fat deposits, independent of the total calories consumed. Read labels closely for added sugars, including corn syrup, dextrose, honey, and agave.

Instead of sugary drinks, sip plain water. Black coffee or with a splash of cream is also a good pick; research suggests coffee has the potential to decrease liver scarring.

Avoid alcohol

Alcohol directly damages the liver, lacks nutritional value, and may affect a healthy microbiome. If you have NAFLD, it’s best to avoid any extra cause for liver injury. We simply do not know what amount of alcohol is safe for those with fatty liver disease — even social drinking may be too much.

Eat mostly whole foods

Vegetables, berries, eggs, poultry, grass-fed meats, nuts, and whole grains all qualify, but cutting out red meat may be wise. An 18-month trial enrolled 294 people with abdominal obesity and lipid imbalances such as high triglycerides. Regular activity was encouraged, and participants were randomly assigned to one of three diets: standard healthy dietary guidelines, a traditional Mediterranean diet, or a green-Mediterranean diet. (The green-Med diet nixed red and processed meats and added green tea and a dinner replacement shake rich in antioxidants called polyphenols.)

All three groups lost some weight, although the Mediterranean diet groups lost more weight and kept it off for a longer period. Both Mediterranean diet groups also showed reduced liver fat at the end of 18 months, but liver fat decreased twice as much in the green-Med group as in the traditional Mediterranean diet group.

Healthy fats are part of a healthy diet

We all need fat. Dietary fats help your body absorb vitamins and are vital in the protection of nerves and cells. Fats also help you feel satisfied and full, so you’re less likely to overeat. Low-fat foods often substitute sugars and starches, which affect blood sugar regulation in our bodies. But all fat is not created equal.

It’s clear that Mediterranean-style diets can help decrease liver fat, thus helping to prevent or possibly reverse NAFLD. These diets are high in healthful fats, such as monounsaturated fats found in olive oil and avocados and omega-3 fats found in walnuts and oily fish like salmon and sardines.

With so many choices, it’s hard to know where to start in the healthy eating journey. Let’s strive to eat whole foods in their natural state. Our livers will thank us for it.

About the Author

Kathleen Viveiros, MD, Contributor

Dr. Kathleen Viveiros is a clinical hepatologist at Brigham and Women’s Hospital who sees patients in Boston and in Foxborough and Westwood, MA. She is an instructor in medicine at Harvard Medical School. Her professional interests … See Full Bio View all posts by Kathleen Viveiros, MD

Hot flashes and sleep or mood changes are well-known, troublesome symptoms that may occur during perimenopause and menopause. Now, one survey suggests nearly 80% of midlife women use cannabis to ease certain symptoms, such as mood issues and trouble sleeping.

Mounting numbers of US states have legalized marijuana for medical or recreational use in recent years. This wave of acceptance runs alongside skepticism in some quarters concerning FDA-approved menopause treatment options, including hormone therapy. But a lack of long-term research data surrounding cannabis use has led one Harvard expert to question how safe it may be, even while acknowledging its likely effectiveness for certain menopause woes.

“More and more patients tell me every year that they’ve tried cannabis or CBD (cannabidiol, an active ingredient in cannabis), particularly for sleep or anxiety,” says Dr. Heather Hirsch, head of the Menopause and Midlife Clinic at Harvard-affiliated Brigham and Women’s Hospital. “Adding to its appeal is that cannabis is now legal in so many places and works acutely for a couple of hours. You don’t need a doctor’s prescription. Socially, it may be easier to justify than using a medication. But why is there a movement toward saying okay to something that has unknown long-term effects, more than something that’s been studied and proven safe?” she asks.

Survey reports on who uses cannabis, why, and how

The new Harvard-led survey, published in the journal Menopause, looked at patterns of cannabis use in 131 women in perimenopause — the often years-long stretch before periods cease — along with 127 women who had passed through menopause. Participants were recruited through online postings on social media sites and an online recruitment platform. Nearly all survey respondents were white and most were middle-class, according to income reporting.

The vast majority (86%) were current cannabis users. Participants were split on whether they used cannabis for medical reasons, recreational purposes, or both. Nearly 79% endorsed it to alleviate menopause-related symptoms. Of those, 67% said cannabis helps with sleep disturbance, while 46% reported it helps improve mood and anxiety.

Perimenopausal women reported worse menopausal symptoms than their postmenopausal peers, as well as greater cannabis use to address their symptoms. More than 84% of participants reported smoking cannabis, while 78% consumed marijuana edibles, and nearly 53% used vaping oils.

One glaring limitation of the analysis is its self-selected group of participants, which lacked diversity and might skew results. But Dr. Hirsch wasn’t surprised by the high proportion reporting regular cannabis use. “I wouldn’t be surprised if those numbers reflect the broader population,” she says.

How might cannabis help menopause symptoms?

It makes sense that midlife women reported cannabis improves anxiety, mood, and sleep, Dr. Hirsch says. The drug likely helps all of these symptoms by “dimming the prefrontal cortex, the decision-making part of our brain.”

For many women, anxiety spikes during perimenopause, she notes. Common stressors during that time, such as aging parents or an emptying nest, add to the effects of dipping hormones. “It’s that feeling of, ‘I can’t turn my brain off.’ It’s really disturbing because they get in bed and can’t fall asleep, so they’re more tired, moody, and cranky the next day,” she explains. Dimming the prefrontal cortex enables people to calm down.

Hot flashes, often cited as the most common menopause symptom, did not improve as much from cannabis use, according to survey respondents. That too makes sense, Dr. Hirsch says, because the hypothalamus — the brain region considered the body’s thermostat — isn’t believed to be significantly affected by the drug.

No research yet on long-term effects

Given a lack of clinical trials objectively testing the effectiveness and safety of cannabis to manage menopause symptoms, more research is clearly needed.

“If people are finding relief from cannabis, great. But is it safe? We think so, but we don’t know,” she says. “There are no studies of middle-aged women using cannabis for 10 years, for as long as menopause symptoms often last. Are there going to be long-term effects on memory? On lung function? We don’t know.”

About the Author

Maureen Salamon, Executive Editor, Harvard Women's Health Watch

Maureen Salamon is executive editor of Harvard Women’s Health Watch. She began her career as a newspaper reporter and later covered health and medicine for a wide variety of websites, magazines, and hospitals. Her work has … See Full Bio View all posts by Maureen Salamon

Three months into the year is a good time to recalculate if you’ve been slacking on your resolution to eat healthy. And if you’ll be leaving home base or school soon and foraging for yourself (plus or minus roommates), it’s a great time to learn about healthy, low-cost choices for your grocery list.

The basics: A weekly shop

A healthy diet is rich in vegetables, fruits, legumes (beans or lentils), whole grains, nuts, seeds, lean proteins, and low-fat dairy products. Trying to fill your cart with all of those goodies can feel overwhelming. But just think in terms of twos.

“Get two fruits and two vegetables of different colors, and two types of lean protein — such as fresh, frozen, or canned fish, chicken or lean ground turkey, or plant-based options,” suggests Nancy Oliveira, a registered dietitian and manager of the Nutrition and Wellness Service at Harvard-affiliated Brigham and Women’s Hospital.

Oliveira also recommends getting two foods in each of these categories on your weekly shopping trip:

• plant proteins, such as canned or dried beans, tofu, tempeh, veggie burgers, or unsalted nuts or seeds
• whole grains, such as whole-grain bread, whole-grain pasta, brown or black rice, quinoa, or farro
• dairy or nondairy milk items, such as nonfat Greek yogurt or cheese.

Go ahead and add one or two healthy treats or snacks, such hummus or dried apricots.

Do you need to choose organic foods?

Organic produce is grown without synthetic fertilizers and pesticides, which are linked to many health problems. While US scientists debate whether foods grown with organic fertilizers (such as animal waste) are safer for your health, other countries, including European Union nations, have banned or phased out synthetic pesticides still used in the United States.

That doesn’t mean that everything you buy must be organic. But try to stay away from conventionally grown produce with thin skins, such as strawberries, spinach, kale, peaches, and grapes. They tend to absorb more chemicals compared to produce with thick skins, such as avocados or pineapples.

The Environmental Working Group creates an annual list to help shoppers avoid high-pesticide produce, and another one that highlights the least contaminated produce.

Buying cost-conscious fresh food and staples

Healthy food, especially organic produce, has a reputation for being expensive. But it doesn’t have to be. Just do a little comparison shopping, and follow Oliveira’s tips to save money on a grocery run:

• Shop in a smaller store with fewer choices.
• Never enter a store hungry, since you might buy more than you normally would.
• Carry a shopping list and stick to it.
• Go directly to the aisles you need. Avoid browsing elsewhere, which may lead to extra purchases.
• Be flexible, have several options within your food categories, and go with sale items.
• Always check the day-old produce cart that offers perfectly edible fresh produce at 50% to 75% off regular prices.
• Buy unseasoned canned or frozen whole foods such as vegetables, chicken, or fish (salmon, sardines, tuna), which are often cheaper than fresh versions.
• Wait for sales of healthy nonperishable staples like quinoa, brown rice, whole-grain pasta, and high-fiber cereals.
• Use coupons and coupon apps.

Easy healthy snacks to reach for

Move on from easy grab-n-go snacks, which are typically processed foods. They often contain unhealthy ingredients and promote overeating. Instead, Oliveira suggests keeping healthy snacks on hand, such as:

• unsalted mixed nuts
• string cheese
• grapes and berries (rinse before eating)
• clementines, bananas, or other fruits that don’t need washing
• a rice cake with nut butter or hummus
• fat-free Greek yogurt
• a peeled hard-boiled egg.

“To save money, buy certain foods in larger amounts when possible, such as an 8-ounce bar of cheese that you slice into small cubes and store in a sealed container in the fridge,” Oliveira says.

Crowdsource shopping tips and savings

Don’t be shy about asking for shopping tips from friends and family members who’ve already developed shortcuts, and grocery store staffers who can offer insider advice.

You can also turn to apps for help. Oliveira recommends two faves:

• Mealime is a meal-planning app with simple, healthy plant-based recipes that automatically create grocery lists for the ingredients.
• List Ease creates lists for grocery runs. You can search for items to add or scan barcodes to add to lists.

“And if you prefer not to use apps, just jot down notes after a quick pantry or fridge inventory, or text yourself every time you remember something you need,” Oliveira advises. “With a little practice, you’ll quickly work out the best system for you.”

About the Author

Heidi Godman, Executive Editor, Harvard Health Letter

Heidi Godman is the executive editor of the Harvard Health Letter. Before coming to the Health Letter, she was an award-winning television news anchor and medical reporter for 25 years. Heidi was named a journalism fellow … See Full Bio View all posts by Heidi Godman

About the Reviewer

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing

Howard LeWine, M.D., is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio View all posts by Howard E. LeWine, MD

A simple word we all hear often — exercise — makes many people cringe. Unhappy childhood memories of school sports or gym classes, flat-out physical discomfort, guilty reluctance, or trouble finding time or pleasurable activities may help explain this. Additionally, for some people with obesity, fear of falling or injury is a high barrier to activity, recent research suggests.

That finding has important implications for health and well-being. So, how can we make movement safe and joyful for people of all weights?

Why be active?

As you may know, being physically active helps combat anxiety and depression. It prevents bone from thinning and tones muscle, helps you sleep better, lowers your blood pressure and blood sugar, and improves your cholesterol levels. It would take numerous medications to do all that routine physical activity can do for you.

Weight loss programs often incorporate exercise. Research shows that exercise helps with weight maintenance and may help with weight loss. Beyond burning calories, regular exercise also builds muscle mass. This matters because muscles are metabolically active, releasing proteins that play a role in decreasing appetite and food intake.

What does this study tell us?

The study found that many people with obesity fear injury and falling, which interferes with willingness to exercise. It followed 292 participants enrolled in an eight-week medical weight loss program in Sydney, Australia. All met criteria for obesity or severe obesity. The average age was 49; one-third of participants were male and two-thirds were female.

At the beginning of the study, participants filled out a 12-question injury perception survey. The majority reported fear of injury or falling, and believed their weight made injury more likely to occur. One-third said that their fear stopped them from exercising. The researchers also recorded weight, height, and waist circumference, and administered strength tests during the first, fourth, and last sessions.

When the study ended, the researchers found that the participants most concerned about getting injured hadn’t lost as much weight as those who did not express this fear. Those who hadn't lost as much weight also tended to have the highest scores of depression, anxiety, and sleepiness.

Fear of injury fuels a dangerous cycle

As noted, exercise is healthy at every weight: it protects your heart, lowers your blood sugar, boosts your mood, and tamps down anxiety. It also builds balance. Weight-bearing exercise such as walking prevents bone thinning.

If worries about injury or falls cause people to avoid exercise, they miss out on the balance-building, muscle-and-bone-strengthening, and mood-enhancing benefits of regular activity. They may be more likely to fall — and possibly more likely to experience fractures if they do.

Find a blend of activities that will work for you

Everyone, at every weight, needs to find ways to exercise safely, confidently, and joyfully.

• Start low and go slow. If you’re not currently active, start by simply sitting less and standing more. Try walking for two minutes every half hour. If you’re afraid of falling, try walking in place or alongside a friend or loved one who can provide security and comfort.
• Ask for guidance. Consider joining a YMCA where you can engage in supervised activities, or ask your doctor for a prescription to physical therapy to help you improve your balance and build your confidence.
• Try different activities to see what works for you. Walking is a simple, healthful activity, but it’s not the only form of activity you can try. You might enjoy swimming or water aerobics. Try pedaling a seated bike or an arm bike (upper body ergometer) that allows you to stay seated while you propel pedals with your arms instead of your feet. Adaptive activities and sports designed for people with physical limitations and disabilities are an option, too. Depending on your fitness level and interests, you might also consider dancing, biking, or anything else that gets you moving more often.

Lastly, keep in mind that many people suffer from anxiety, and a fear of falling is not insurmountable. If you’re really struggling, talk to your doctor or a mental health professional.

About the Author

Elizabeth Pegg Frates, MD, FACLM, DipABLM, Contributor

Dr. Beth Frates is a trained physiatrist and a health and wellness coach, with expertise in lifestyle medicine. She is an award-winning teacher at Harvard Medical School, where she is an assistant clinical professor. Dr. Frates … See Full Bio View all posts by Elizabeth Pegg Frates, MD, FACLM, DipABLM