Can eating the rainbow help to reduce inflammation?
11/6/2025 by Tamara Soerense
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Inflammation is a natural process initiated by the immune system in response to illness, trauma, toxins, physical stress and chronic disease. While acute inflammation is protective and allows our bodies to heal, it can become harmful if it persists, leading to chronic inflammation. Chronic inflammation, in turn, can lead to conditions such as arthritis, heart disease, and diabetes.
Several foods can contribute to inflammation. These include highly processed foods, refined carbohydrates, or foods high in added sugars. Conversely, other foods can help calm the immune system, decreasing inflammation.
Let’s explore which foods help lower inflammation and how they can be incorporated into an anti-inflammatory diet.
Fruits and Vegetables: Colorful fruits and vegetables naturally contain various phytonutrients and bioactive compounds that help keep inflammation in check. These foods form the foundation of the anti-inflammatory diet and can be enjoyed in abundance. For an extra boost of protection, try drizzling antioxidant-rich olive oil on your veggies..
Protein: Choose primarily from plant-based sources such as legumes, soy, nuts, and seeds, with smaller amounts from lean cuts of animal protein and fatty fish. The fats in these proteins, mainly monounsaturated and omega-3, play a significant role in combating inflammation. The American Heart Association recommends 6 to 8 ounces of fatty fish and 5 ounces of legumes, nuts, and seeds per week.
Whole grains: Whole grains contain all parts of the grain, whereas refined grains remove the germ and bran, eliminating important inflammation-reducing compounds. Of these, fiber is a bit of a superstar, shown to help reduce blood sugar and cholesterol levels. Aim for at least 50% of your grains from whole grain sources, such as rolled oats and brown rice.
Herbs and Spices: Herbs and spices add flavor to your food and help reduce oxidative stress, which can trigger inflammation. Add ginger, turmeric, clove, cinnamon, oregano, and garlic to your next meal.
What change can you make today to shift your body into a less inflamed state?
Consider adding one colorful fruit or vegetable to your diet each day. Suggestions include tomatoes, oranges, yellow bell peppers, arugula, blueberries, pumpkin and broccoli.
Tamara Soerensen completed her bachelor’s degree in biology at the University of California, Santa Barbara and her master’s in nutrition at Bastyr University. She is currently a dietetic intern at Mayo Clinic in Rochester, Minnesota. Special interests include digestive health and the utilization of diet for disease prevention.
Can eating the rainbow help to reduce inflammation?
11/6/2025 by Tamara Soerense
n
Inflammation is a natural process initiated by the immune system in response to illness, trauma, toxins, physical stress and chronic disease. While acute inflammation is protective and allows our bodies to heal, it can become harmful if it persists, leading to chronic inflammation. Chronic inflammation, in turn, can lead to conditions such as arthritis, heart disease, and diabetes.
Several foods can contribute to inflammation. These include highly processed foods, refined carbohydrates, or foods high in added sugars. Conversely, other foods can help calm the immune system, decreasing inflammation.
Let’s explore which foods help lower inflammation and how they can be incorporated into an anti-inflammatory diet.
Fruits and Vegetables: Colorful fruits and vegetables naturally contain various phytonutrients and bioactive compounds that help keep inflammation in check. These foods form the foundation of the anti-inflammatory diet and can be enjoyed in abundance. For an extra boost of protection, try drizzling antioxidant-rich olive oil on your veggies..
Protein: Choose primarily from plant-based sources such as legumes, soy, nuts, and seeds, with smaller amounts from lean cuts of animal protein and fatty fish. The fats in these proteins, mainly monounsaturated and omega-3, play a significant role in combating inflammation. The American Heart Association recommends 6 to 8 ounces of fatty fish and 5 ounces of legumes, nuts, and seeds per week.
Whole grains: Whole grains contain all parts of the grain, whereas refined grains remove the germ and bran, eliminating important inflammation-reducing compounds. Of these, fiber is a bit of a superstar, shown to help reduce blood sugar and cholesterol levels. Aim for at least 50% of your grains from whole grain sources, such as rolled oats and brown rice.
Herbs and Spices: Herbs and spices add flavor to your food and help reduce oxidative stress, which can trigger inflammation. Add ginger, turmeric, clove, cinnamon, oregano, and garlic to your next meal.
What change can you make today to shift your body into a less inflamed state?
Consider adding one colorful fruit or vegetable to your diet each day. Suggestions include tomatoes, oranges, yellow bell peppers, arugula, blueberries, pumpkin and broccoli.
Tamara Soerensen completed her bachelor’s degree in biology at the University of California, Santa Barbara and her master’s in nutrition at Bastyr University. She is currently a dietetic intern at Mayo Clinic in Rochester, Minnesota. Special interests include digestive health and the utilization of diet for disease prevention.
Having heart disease doesn’t mean your adventuring days are over. It just means you have to do some extra planning. If you can’t seem to check your worries at the departure gate, reach out to your provider. They can help you lay the groundwork for a safe and healthy flight. 🛫🛬 pic.twitter.com/E7xoBfgACh
Avocados are jam-packed with nutrients and vitamins and can make a delicious, nutritious addition to your diet.
Millenials may get flak for being the “avocado toast generation,” but honestly, they may be onto something! Avocados are as nutritious as they are delicious, and they’re jam-packed with vitamins and nutrients.
Avocados include vitamins C, E, K1, B6 and folate, plus essential minerals like potassium and copper. They’re low in sugar, loaded with fiber and high in monosaturated fats, aka “good” fats. Oh, and did we mention that they taste great and they’re super versatile?!
Registered dietitian Julia Zumpano, RD, LD, shares a few more good reasons to give these wrinkly green fruits a second look — plus, how to add them to your regular rotation.
Are avocados good for you?
“Avocados are a great addition to a healthy diet,” Zumpano confirms, “and there are hundreds of varieties to choose from, ranging from big to small and wrinkly to smooth.”
What they have in common: A big round pit, creamy green flesh and a whole lot of nutrients crammed into a handy, pear-shaped package.
Just don’t go overboard. Avocados are packed with nutrients, but they’re also packed with calories. A 50-gram portion — about a third of a medium-sized avocado — has about 75 calories. And an entire large avocado can add upward of 400 calories to your daily diet.
Like most things, Zumpano says, moderation is key. “As long as you’re paying attention to portion sizes, avocados are very healthy foods to include in your food repertoire.”
Benefits of avocados
Whether you’re adding a slice to a salad or sandwich or using them as an ingredient in a more complicated recipe, Zumpano says avocados have a lot going for them health-wise.
Here are some of the many nutrients and vitamins packed into just a single avocado:
High in ‘good’ fats
You might’ve heard that avocados are high in fat — and that’s true, but it doesn’t mean you should avoid them! A medium avocado has 22 grams of fat, which includes 15 grams of monounsaturated fats, aka “good” fats.
“Avocados are rich in heart-healthy monounsaturated fats, which help lower your LDL, or ‘bad’ cholesterol,” Zumpano says. “Low LDL levels reduce your risk of heart disease and stroke.”
The American Heart Association says most of the fats you eat should be monounsaturated or polyunsaturated, confirming that avocados fit the bill as part of a healthy diet.
You can even swap avocado in for less-healthy fats in your home cooking. Here are some additional ways you can add this smooth, creamy fruit to your diet.
Spread avocado on a sandwich in place of mayonnaise.
Instead of dunking veggies into dips made with cheese or sour cream, try guacamole.
Forego shredded cheese on your salad and add avocado slices instead.
In baking recipes, replace butter or oil with mashed avocado, like in these chocolatey avocado brownie bites.
“If you use avocado to replace other fats, you can enjoy the flavor and nutrients and also cut down on saturated fats,” Zumpano says.
Lots of vitamins
Let’s talk vitamins: In simple terms, avocados have a lot of them! Here are the vitamins that are most abundant in avocados and what they do for your health:
Vitamin K1, or phylloquinone, is important for blood clotting, which helps stop wounds from bleeding. It also plays a role in strengthening your bones. For most adults, the daily recommended amount of vitamin K ranges from 90 to120 micrograms. Half an avocado has about 21 mcg.
Vitamin C, aka ascorbic acid, helps keep your immune system healthy. It also plays a role in the health of your tissues, blood vessels, bones and more. Depending on your age and sex, you need anywhere from 75 to 120 milligrams of vitamin C per day; half an avocado has about 10 mg.
Vitamin E, or alpha-tocopherol, is a powerful antioxidant that prevents cell damage and helps maintain muscle function. Most adults only need 15 mg of vitamin C per day, and half an avocado will give you about 4 mg of it.
Vitamin B6, also known as pyridoxine, helps your body convert food into energy. You only need a small amount of vitamin B6 each day (just 1.2 to 2 mg, depending on your age and sex), but half an avocado has about .25 mg, putting you well on your way to that daily goal.
Folateis a B vitamin that’s important for normal cell function and tissue growth. It helps your body form red blood cells and DNA, which is especially critical when you’re pregnant (but still important if you’re not). Half an avocado has about 20% of your daily recommended amount.
Low in sugar
Though most fruits are high in natural sugars, avocados rank very low on the sweetness scale. “A whole avocado has under 1.5 grams of sugar, while one medium apple, by comparison, has about 19 grams,” Zumpano points out. (Psst: It’s important to note that not all sugars are created equal! Fruit is still super-healthy.)
High in fiber
Avocados are a good source of fiber, which is a type of carbohydrate that your body can’t break down. You need both soluble and insoluble fiber — and lucky for you, avocados have both.
“Fiber can lower cholesterol and blood sugar, keep you regular and help you feel full and satisfied after a meal,” Zumpano states. Most adults need 25 to 35 grams of fiber per day, depending on your age and sex. Half an avocado provides about 7 grams.
Packed with potassium
Surprise! “Avocados actually contain more potassium than bananas,” Zumpano reveals. Half a large avocado provides about 485 mg of potassium, while a whole banana provides about 420 mg. (Most adults need 2,600 to 3,400 mg per day.)
This essential mineral is beneficial for blood pressure control and heart health. Low blood potassium can increase your blood pressure, raise your risk of kidney stones and even pull calcium out of your bones.
Increases your copper intake
Think past pennies: Copper is actually an essential trace mineral that your body needs in order to function correctly. Most Americans don’t get enough of it in their diets, but half an avocado will get you 20% of your daily recommended amount.
“Copper helps your body metabolize iron, and it plays a role in a healthy immune system and nervous system,” Zumpano explains.
Tips for enjoying avocados
“A perfectly ripe avocado is slightly firm but not rock-hard,” Zumpano says. “If it’s not ripe but you can’t wait to eat it, store it in a paper bag on the counter until it gives a little when you squeeze it.”
A ripe-but-not-too-ripe avocado is a time-limited treasure, so dive right in and get creative with your avocado creations, or embrace the millennial method and enjoy some avocado toast.
But if you need to store it for a couple of days, just be sure to keep it in the fridge — not submerged in water, as some TikTokkers recommend. Some people call it a “food hack,” but it can easily lead to foodborne illness.
“You can even freeze avocado slices if you’re worried you won’t use them in time,” Zumpano suggests. “Then, you can easily throw them into a smoothie.”
This dairy product can help you lose weight, manage blood sugar and strengthen bones
Cottage cheese doesn’t typically receive a lot of attention. It gets left out from the fancy cheese counter at the grocery store. It doesn’t make the cut for a charcuterie (meat and cheese) board. And it isn’t typically included in recipes for favorite foods such as pizza, grilled cheese or baked ziti.
It’s a soft, white, fresh cheese that’s different in texture and taste than more popular cheddar, Parmesan and blue cheeses. But cottage cheese holds a prominent place in the dairy aisle for good reasons, says registered dietitian Julia Zumpano, RD, LD.
“It’s a portable food that’s easy to add to your diet,” she says. “And cottage cheese offers lots of health benefits.”
As a dairy product, cottage cheese is a great calcium source, which is important for bone health. Having healthier bones makes you less likely to get osteoporosis (weak bones). Cottage cheese in your diet can even help with your blood sugar levels.
Thinking about giving cottage cheese a go? Zumpano explains what you need to know.
Is cottage cheese healthy?
Cottage cheese is low in calories while providing protein and vital nutrients, Zumpano says, making it one of the healthiest cheeses you can eat. It’s made by curdling pasteurized (sterilized) cow’s milk — when milk turns acidic, the milk protein separates and forms curds (clumps). These loose curds serve as the base for cottage cheese.
Depending on the fat content of curdled dairy milk, cottage cheese is available as nonfat, low fat (1% or 2%) or whole fat. The milk type affects the nutritional content.
“To get the most bang for your buck, choose a low-fat or even full-fat cottage cheese,” Zumpano advises. “Nonfat cottage cheese may sound like a good idea, but it contains less protein and won’t be as satisfying.” Full-fat cottage has 1.5 grams more of saturated fat when compared to 2% but can be the most satisfying.
Health benefits of cottage cheese
Cottage cheese may be mild in flavor, but it packs a punch when it comes to potential health benefits. Some of the many benefits of cottage cheese include:
Provides good nutrition
A 100-gram serving (just under a half cup) of low-fat (2%) cottage cheese provides:
Three factors make cottage cheese a great choice if you’re looking to lose pounds or maintain your weight:
High in protein:Research finds that eating a high-protein diet helps curb your appetite and manage hormones associated with appetite, digestion and insulin release.
Low in fat: Full-fat cottage cheese contains less fat than some other cheeses (4% fat versus 30% fat in cheddar), and its high protein makes it an excellent low-fat option.
Provides calcium:Studies show that increasing calcium can help you lose weight when combined with a calorie-restricted diet.
Cottage cheese isn’t the only dairy food to provide these advantages. Greek yogurt can also check these boxes. But if you’re deciding between the two, Zumpano recommends cottage cheese. “Full-fat cottage cheese and full-fat Greek yogurt have the same amount of fat, but cottage cheese has 25% more protein.”
Provides essential amino acids
Cottage cheese is rich in casein (pronounced “KAY-seen”) protein. It’s a complete protein that provides essential amino acids, which are all the building blocks of protein that your body needs.
Amino acids help your body work smoothly. They affect your:
Phosphorus is critical for proper bone development and strength, especially during growth spurts or when healing from a fracture.
Protein helps maintain bone mineral density and can reduce the risk of fractures.
“Bone health is critical as you age,” Zumpano shares. “Adding cottage cheese to your diet is an easy way to strengthen them.”
Helps you control blood sugar levels
Plain cottage cheese is low in carbohydrates, making it a great option for anyone watching their blood sugar. The slow-digesting casein protein in cottage cheese also helps prevent blood sugar spikes.
“To get this benefit of cottage cheese, choose plain cottage cheese,” Zumpano recommends. “Avoid cottage cheese pre-packaged with fruit and check the label for added sugar.”
Contributes to a balanced gut
Probiotics are live microorganisms that can improve the balance of good and bad bacteria in your gut (gut microbiota). The curdling process used to produce cottage cheese adds beneficial bacteria that can promote better gut health. But unlike Greek and regular yogurt, which almost always contain probiotics, not all cottage cheese is created equal.
“If you want cottage cheese that provides probiotics,” Zumpano says, “check the label to see if it says it contains ‘live and active cultures.’”
Promotes muscle development
The slow-release protein in cottage cheese doesn’t just help with digestion. It’s also important for building muscle tissue and helping your muscles recover after a workout.
“Casein protein provides your cells with amino acids consistently over a longer period, which helps muscles recover instead of breaking down,” Zumpano explains. Consider having cottage cheese after a workout to get the maximum benefit for your muscles.
Reduces your risk of some cancers
Research shows that increasing dairy intake may lower your risk for some (though not all) cancers. “There’s still a lot to learn about the connection between dairy and cancer prevention,” Zumpano states. “But it’s clear there are protective benefits to including dairy in a balanced diet.”
Experts believe getting more calcium may offer protection from:
Bladder cancer.
Breast cancer.
Colorectal cancer.
Stomach (gastric) cancer.
Tips for adding cottage cheese to your diet
The United States Department of Agriculture (USDA) recommends that adults get three cups of dairy daily. Cottage cheese can help you reach that goal.
When you incorporate cottage cheese into your diet, remember to:
Check the nutrition label: Single-serve containers of cottage cheese may vary in size and nutritional content.
Consider your lactose tolerance: The lactose in cheese decreases with age. As a fresh, unripened cheese, cottage cheese often contains more lactose than aged cheeses. If you have lactose intolerance, consider a cottage cheese that’s lactose-free.
Keep an eye on sodium: Cottage cheese can be high in sodium, so opt for low-sodium or sodium-free cottage cheese to protect yourself from high blood pressure and heart disease.
Get creative: There are many ways to eat more cottage cheese. Consider adding cottage cheese to your eggs or pancake mix. Bake it into muffins or cakes. Or use it as a substitute for sour cream or ricotta cheese.
Even casual drinking can put your long-term health at risk. Our liver specialist explains the findings of this study.
New Study: No Level of Alcohol — Even Casual Drinking — Is Entirely Safe
Leading cause of death of those age 15-49
Stopping for happy hour with colleagues after work. Cracking open a cold beer (or two) while watching the game. Meeting up with girlfriends for a glass of pinot noir. Having an alcoholic beverage of choice is a common way to unwind. But according to a recent study, even casual drinking can put your long-term health at risk.
Liver specialist Jamile Wakim-Fleming, MD, did not take part in the study, but says the research found that alcohol was a leading risk factor for both disease and premature death.
“They found that alcohol was the seventh leading cause of death worldwide,” she says. “But even more alarming, is that it was the first leading cause of death of people between the ages of 15-49.”
What the study examined
The study looked at global data from hundreds of previous studies and found that for all ages, alcohol was associated with 2.8 million deaths each year.
Researchers found that alcohol-related cancer and heart disease, infectious diseases, intentional injury, traffic accidents and accidental injury were some of the leading causes of alcohol-related deaths.
But isn’t alcohol good for your heart?
Dr. Wakim-Fleming says people often believe that a little bit of alcohol, wine in particular, may be good for their heart. But the study results didn’t show any health benefit to drinking any amount of alcohol.
She says this information, along with previous research that has shown more young people are dying from alcohol-related liver disease, indicates that excessive drinking among young adults is a growing problem.
The damage grows over time
And like any substance-abuse problem, Dr. Wakim-Fleming says the damage to the body from alcohol increases over your lifespan.
“It’s a cumulative effect,” she explains. “If you do it all at once, then you’re going to have the effect now. If you drink on a regular basis, over years it’s going to be cumulative and you will end up with a problem later on.”
Dr. Wakim-Fleming notes that anything we do in life involves risk, but it’s important to know what the risks are so that we can make the best decisions for our health.
“When you create a meal centered around vegetables, you’re taking steps to improve and maximize your health,” says Liz Moore, registered dietitian at Beth Israel Deaconess Medical Center. Try these three meals today. — #HarvardHealth#Diet#Nutrition
Meatless Mondays, meet summer’s bounty: a wide variety of colorful, fresh summer vegetables now available in grocery stores, backyard gardens, and farmer’s markets. We’re talking sunshiny golden corn on the cob, deep purple eggplant, red beets, peppers of all hues, not to mention tomatoes, zucchini, green beans, cucumbers, and more. With a bit of simple prep, they’re ready to take center stage on your plate, reinforcing the joy of summer.
“Vegetables in our diet provide many benefits. And when you create a meal centered around them, you’re taking steps to improve and maximize your health,” says Liz Moore, the author of a heart-healthy cookbook and a registered dietitian at Harvard-affiliated Beth Israel Deaconess Medical Center.
Centering healthy vegetables on your plate
Making vegetables the stars of a meal is part of the “veg-centric” movement, which teaches people how to elevate even average vegetables to creative entrées and side dishes. The trend gives vegetables bold flavors by grilling, layering, caramelizing, or roasting them — steps you can take with a backyard grill or stovetop skillet.
Summer veggie meals have lots of important health perks. “Vegetables such as eggplant and beets of all colors are rich in fiber, Moore says. “Eating a high-fiber diet helps lower cholesterol and is linked to heart health, digestive health, and helping to maintain stable blood sugar levels. For those trying to lose weight, vegetables are low in calories and provide volume, which helps keep you full.”
Summer vegetables also have a wide variety of essential vitamins, minerals, and phytochemicals (beneficial plant chemicals) like flavonoids. “For example, carotenoids in cooked tomatoes are rich in lycopene, which is associated with inhibiting cancer growth and boosting the immune system. And beets are a good source of folate and potassium,” Moore says.
Three easy summer vegetable meals
Wondering what to do with the colorful harvest available to you? Moore suggests keeping it simple by making a meal of vegetables paired with whole grains or legumes (beans or lentils). Here are three meals that fill the bill.
Grilled eggplant steak with cucumber, tomato, onion, chickpea, and feta salad
Slice an eggplant (from root to stem) into three-inch thick “steaks.” On each side, drizzle olive oil and a little black pepper. Grill on both sides until tender.
Dice two tomatoes, one cucumber, and half a red onion. Add a can of rinsed, drained chickpeas. Toss with a dressing of olive oil, a little red wine vinegar, and oregano to taste.
Serve the salad over the eggplant steak. Top with some diced feta cheese, if you like.
Veggie pita pocket with gazpacho
Put a couple of tomatoes, a cucumber, a green pepper, half a red onion, some bread crusts, and a little olive oil into a blender. Blend until chunky or finer, as you prefer. Add salt, pepper, and cumin to taste, blending for a few more seconds. Chill for 30 minutes.
Open a whole-wheat pita and spread a tablespoon of hummus inside. Add slices of zucchini and carrots, and some arugula, salad greens, or other vegetables that appeal to you.
Serve the pita with half a cup of the gazpacho.
Quinoa-stuffed red peppers
Based on a recipe from BIDMC’s CardioVascular Institute’s Hungry Heart Cookbook by Liz Moore, RD, LDN
Cut peppers in half, remove seeds, and lay them open side up on a dish.
Mix cooked quinoa, diced tomatoes, and corn off the cob (you can grill the corn first and cut off the kernels for a special summer flair). Add low-fat grated cheddar cheese, canned (rinsed) black beans, one egg, and some spices to taste, such as a bit of cumin, chili powder, salt, and pepper.
Use the mixture to stuff the peppers evenly, and then cook them on the grill in a grilling basket for about 30 minutes. You can also cook them in the oven at 350° F on a cookie sheet or in a roasting pan, checking at 30 minutes to see if they are done.
Other ideas include
grilled veggie kebabs with chunks of eggplant, zucchini, cherry tomatoes, and mushrooms. Serve on a bed of lettuce and add a little goat cheese.
whole-wheat pasta with a mix of sautéed vegetables that appeal to you.
salad with green leaf lettuce, raw green beans, cherry tomatoes, Kalamata or black olives, and half a hard-boiled egg. Top with a dressing you enjoy.
Which combinations of summer vegetables you choose can depend on cost, taste preferences, and how much time you want to spend cooking. If you’re in a hurry, go with a salad. If you have more time, try grilling or sautéing vegetables.
Finally, be open to inspiration from the bounty you see at the market. “Focus on getting a variety of colors in the vegetables you choose. The more colors there are on the plate, the more nutrients you’ll be consuming,” Moore says. “And try something new. Explore vegetables you’ve never tried before or new methods of cooking. Think of it as one of summer’s glorious adventures.”
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
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