Type 2 Diabetes, Obesity, and Inflammation

Obesity and Diabetes Cause Chronic Inflammation: Here’s What to Do About It

Obesity and Diabetes Cause Chronic Inflammation: Here’s What to Do About It
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Obesity, inflammation, and type 2 diabetes are interconnected in a cyclical way.

Obesity causes chronic inflammation, which helps drive the development and progression of type 2 diabetes. Diabetes, in turn, worsens inflammation even further, leading to more insulin resistance, which makes both obesity and diabetes more difficult to manage. Inflammation can increase the risk of other chronic conditions, such as heart disease, and diabetes complications.

The good news is that reining in inflammation can improve your blood sugar and help you manage your weight, as well as your overall health.

What Is Inflammation?

Inflammation is your body’s normal response to injuries, illness, and threats such as germs. When your immune system senses that you’re hurt or sick, it triggers the release of inflammatory chemicals to help you heal.

Redness or swelling around a cut or sprain, for instance, is inflammation at work. This sort of inflammation, called acute inflammation, usually only sticks around for a few days until you get better.

Chronic inflammation, on the other hand, happens when the body continually releases inflammatory chemicals when you are not hurt or sick. Over time, this type of inflammation can damage healthy cells, tissues, and organs. It also increases the risk of chronic conditions such as diabetes, heart disease, cancer, and Alzheimer’s disease.

Inflammation drives the development of autoimmune diseases, such as rheumatoid arthritis and lupus, as well as their symptoms. Often, treatment for these conditions includes corticosteroids.

Diabetes, Obesity, and Inflammation: How the Cycle Works

“Obesity, chronic inflammation, and diabetes are interconnected in a cycle that feeds on itself,” says Yesika Garcia, MD, a board-certified endocrinologist with Medical Offices of Manhattan in New York City.

Here’s how it works. Excess body fat, especially belly fat, signals the release of inflammatory chemicals called cytokines that trigger chronic, low-grade inflammation throughout the body.

Inflammation disrupts how your body uses insulin, the hormone that helps the body store and use the sugar we get from food. This makes it harder to move sugar from the blood into cells, Dr. Garcia says.

Over time, the cells in our body may be less responsive to insulin or resist it. This makes it harder for the body to move insulin from the blood, leading to high blood sugar. In some people, this helps cause type 2 diabetes.

If you already have diabetes, insulin resistance and high blood sugar levels create even more inflammation. They can also make it easier for the body to store fat.

“That can make it harder to lose weight, keeping the cycle going,” says Nicole Schneider, NP, an endocrinology nurse practitioner with UWHealth in Madison, Wisconsin.

Chronic Inflammation and Complications

Chronic inflammation can have widespread effects on the body. Symptoms may include:

  • Body aches or pain
  • Chronic fatigue or trouble sleeping
  • Constipation, diarrhea, or acid reflux
  • Depression or anxiety
  • Frequent colds or infections
  • Trouble maintaining a healthy weight

Chronic inflammation also keeps the immune system switched on, which can inflame blood vessels, organs, and tissues and interfere with normal healing processes, says Donna Casey, MD, an internal medicine physician on the Texas Health Presbyterian Hospital Dallas medical staff in Dallas.

That can raise your risk of heart disease, a heart attack, or a stroke, all of which are also more common when you have obesity and diabetes.

The issue can go beyond heart and blood sugar problems, too. Chronic inflammation may contribute to breast, lung, and liver cancer.

It may also lead to imbalances in the gut microbiome that are tied to conditions such as:

Chronic inflammation also can raise the risk of diabetes-related complications, such as kidney disease, and it might make those complications harder to manage.

“Inflammation harms blood vessels, making them sticky and leaky like clogged, weakened pipes,” Schneider says.

It’s that blood vessel damage that, over time, can damage your eyes, nerves, and kidneys, leading to diabetes-related complications such as neuropathy, retinopathy, and kidney failure.

How to Fight Inflammation

Healthy habits can help keep chronic inflammation in check. They can also help you reach or maintain a healthy weight and manage your diabetes. In some cases, medications can also play a role.

Maintain a Healthy Diet

Your food choices can affect inflammation. For example, research shows that a Mediterranean diet of grains, fruits, vegetables, seafood, and other heart-healthy food may reduce inflammation.

These foods also may improve insulin sensitivity and immune-system function, in addition to promoting weight management.

Some of the best anti-inflammatory foods for diabetes include:

  • Fruits
  • Vegetables, such as broccoli, leafy greens, carrots, and sweet potatoes
  • Beans and legumes
  • Whole grains, including whole-wheat bread and whole-wheat pasta
  • Lean proteins, such as seafood and lean poultry
  • Healthy fats, such as olive oil, nuts, seeds, and avocado

“These foods are packed with antioxidants, fiber, and healthy oils that reduce the production of inflammatory molecules in the body,” Garcia says.

Limit your intake of foods that may make inflammation worse, including:

  • Red or processed meat
  • Baked goods
  • Bread and pasta made with white flour
  • Fried foods
  • Sugary foods and beverages

Exercise Regularly

Physical activity is recommended for people with type 2 diabetes, and it can help fight inflammation.

“Aerobic and non-aerobic exercise both lower blood levels of inflammatory markers and increase levels of anti-inflammatory markers,” Dr. Casey says.

Exercise also can increase insulin sensitivity and stabilize blood-sugar levels, Garcia says. The results can last a day or more.

Generally, adults should get at least 150 minutes of moderate exercise, or 75 minutes of vigorous exercise, per week, plus muscle-strengthening exercises at least two days a week.

Everyone’s exercise needs and tolerance are different, however. Talk to your healthcare team about the exercise routine that might be right for you before starting a new workout plan.

Lose Weight

Dietary and exercise adjustments can be a good way to start losing weight. Especially for people with obesity, losing weight can help manage type 2 diabetes and inflammation.

“As fat tissue shrinks, the body produces fewer inflammatory molecules and instead releases more beneficial hormones that support healthy metabolism,” Garcia says. “This shift not only lowers inflammation but also allows muscles and the liver to use glucose more efficiently, which keeps blood sugar steadier.”

Health improvements among people with type 2 diabetes and obesity can occur by losing 5 percent of their body weight, with more reduced risks among those losing at least 15 percent.

Weight loss isn’t easy, and for some people it may not be appropriate. Talk to your doctor or a registered dietitian about a weight-management strategy that works for your specific situation.

Consider Medications

Medications can help you lose weight and control your blood sugar when lifestyle changes alone aren’t enough.

If you have diabetes, it’s crucial to stick to your treatment plan to ensure you are managing your blood sugar effectively. The same goes for any other medications you are prescribed for inflammation, obesity, or related conditions, such as high blood pressure.

Some medications prescribed to treat diabetes or obesity may have direct inflammation-fighting effects:

  • Glucagon-like peptide-1 receptor agonists, the drug family that includes the blockbuster diabetes and obesity treatment semaglutide (Ozempic, Wegovy), can help reduce inflammation.

  • Metformin, the first-line therapy for most people with type 2 diabetes, also has a significant anti-inflammatory effect. Research is still needed to determine how effective it can be at treating chronic conditions such as rheumatoid arthritis.

  • SGLT2 inhibitors, which help your body remove extra sugar, may reduce inflammation in people with type 2 diabetes.

    They may also lower the risk of gout.
But some anti-inflammatory drugs can pose risks for people with diabetes. Steroids are among the strongest medications for reducing inflammation, but they can increase blood sugar levels and make diabetes harder to control. If you are taking or have been prescribed steroids, talk to your doctor about checking your blood sugar more often.

Nonsteroidal anti-inflammatory drugs, such as aspirin and ibuprofen, are sometimes recommended to tamp down chronic inflammation. But they can harm the kidneys, raise blood pressure, or worsen heart problems, which can be more serious side effects for people with type 2 diabetes.

Talk with your doctor to ensure that you understand the benefits and risks of medications for diabetes and weight loss. Together you can decide on the right treatment for you.

The Takeaway

  • Type 2 diabetes, obesity, and chronic inflammation may go hand in hand, with one condition causing another or making it worse.
  • Chronic inflammation can help speed the development of diabetes complications such as cardiovascular disease and kidney disease.
  • Dietary changes, regular exercise, weight loss, and the prudent use of medication can help you reduce inflammation and keep your chronic disease risks in check.

Resources We Trust

EDITORIAL SOURCES
Everyday Health follows strict sourcing guidelines to ensure the accuracy of its content, outlined in our editorial policy. We use only trustworthy sources, including peer-reviewed studies, board-certified medical experts, patients with lived experience, and information from top institutions.
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Elise-M-Brett-bio

Elise M. Brett, MD

Medical Reviewer
Elise M Brett, MD, is a board-certified adult endocrinologist. She received a bachelor's degree from the University of Michigan and her MD degree from the Icahn School of Medicine at Mount Sinai. She completed her residency training in internal medicine and fellowship in endocrinology and metabolism at The Mount Sinai Hospital. She has been in private practice in Manhattan since 1999.

Dr. Brett practices general endocrinology and diabetes and has additional certification in neck ultrasound and fine-needle aspiration biopsy, which she performs regularly in the office. She is voluntary faculty and associate clinical professor at the Icahn School of Medicine at Mount Sinai. She is a former member of the board of directors of the American Association of Clinical Endocrinology. She has lectured nationally and published book chapters and peer reviewed articles on various topics, including thyroid cancer, neck ultrasound, parathyroid disease, obesity, diabetes, and nutrition support.
Marygrace Taylor

Marygrace Taylor

Author
Marygrace Taylor is a health writer and editor based in Philadelphia. Her work has appeared in publications including Parade, Glamour, Women's Health, Prevention, RedbookMen's Health, and O, The Oprah Magazine. She's also the coauthor of Eat Clean, Stay Lean: The Diet and Prevention Mediterranean Table.