Locations:

A Poor Diet Increases Your Risk of Dying from Heart Disease, Stroke, Diabetes

Your food choices can have a profound impact on how long you’ll live

A table full of dishes like a charcuterie board, olives, nuts and bread

The battle against heart disease, stroke and Type 2 diabetes — three of the world’s leading causes of death — may be won or lost on your grocery list.

Advertisement

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

Unhealthy eating habits stand out as a lifestyle factor that increases the risk of death associated with these chronic diseases, researchers say. Numerous studies draw a clear line between what’s on your plate and mortality.

For instance:

  • More than two-thirds of heart disease-related deaths worldwide can be linked to food choices, according to a study published last year. The authors estimated that 6 million deaths could have been avoided through better diets.
  • Healthy lifestyle choices reduce the risk of stroke by 80%, according to a study published in 2019. Diet was identified as the leading factor, earning a designation as the “worst of the health issues in the United States.”
  • Poor dietary habits contributed to almost half of the more than 700,000 deaths reviewed as part of a study published in 2017. The deaths were caused by heart disease, stroke and type 2 diabetes.

Each study illustrates the profound impact that food choices can have on your health, says registered dietitian Kate Patton, MEd, RD, CCSD, LD. (Patton was not involved in the cited research.)

“A way of looking at it is thinking about food as medicine,” explains Patton. “The right food can really improve your health and decrease your risk of developing these chronic diseases.”

Advertisement

Foods to avoid to eat healthier

The studies identify some common culprits in poor diets that have long been associated with influencing your heart health and metabolism. Excessive sodium/salt intake ranked among the top concerns.

While sodium is an essential nutrient for your body, too much of it can lead to high blood pressure (hypertension) and damaged arteries that strain your heart, Patton notes. And hypertension is a stepping stone to heart disease and potentially a heart attack or stroke.

The average American consumes about 3,400 mg of sodium per day, according to the U.S. Food and Drug Administration. The federal Dietary Guidelines for Americans 2020-2025 recommends limiting sodium intake to less than 2,300 mg per day.

But it’s not just a matter of putting down the salt shaker. Sugary beverages and processed food – particularly meat – also earned warning flags in the studies, as did foods high in saturated fats.

Foods to build a healthier diet

The road to healthier eating starts in the produce aisle with fruits and vegetables. The average diet for Americans falls short of meeting recommended levels, according to statistics from the U.S. Department of Agriculture.

Healthier diets, like the rightly acclaimed Mediterranean diet, also feature more whole grains, nuts and seafood such as salmon and tuna that are rich in omega-3 fatty acids, according to the various studies.

“These studies and others like them serve as a call to take a closer look at your diet,” says Patton.

It could be a life-saving action.

Advertisement

Cleveland Clinic icon
Health Essentials logo
Subscription icon

Better health starts here

Sign up for our Health Essentials emails for expert guidance on nutrition, fitness, sleep, skin care and more.

Learn more about our editorial process.

Related Articles

Hand picking durian flesh from a cut open durian fruit
September 11, 2026/Nutrition

What Is Durian?

This famously funky-smelling fruit is packed with fiber, vitamins and minerals

Halved grapfruit with spoon, and whole grapefruit
September 1, 2026/Nutrition

Health Benefits of Grapefruit

This citrus fruit delivers vitamin C, fiber and other nutrients that can support your heart, immune system and skin

Overnight oats topped with peanut butter, fruit and chia seeds
August 27, 2026/Diet, Food & Fitness

12 High-Protein Breakfast Ideas

Eating about 20 to 30 grams of protein for your first meal can help you feel fuller longer and fend off cravings

Fish market worker selecting a cut of fresh fish
August 24, 2026/Nutrition

Best Catch: The Healthiest Fish To Eat

The best choices are high in omega-3s and protein and low in mercury

Halved lemons on cutting board next to glass bowl of lemon juice
August 12, 2026/Nutrition

Is Lemon Juice Good for You? 6 Health Benefits To Know

This bright citrus juice is packed with vitamin C and other nutrients that support your health

A fresh, sliced ube, with purple insides, and a fresh, whole ube
August 11, 2026/Nutrition

The Health Benefits of Ube

This vibrant purple yam offers vitamin C, fiber and antioxidants in every bite

Person looking over bag of frozen veggies in grocery store
July 30, 2026/Nutrition

Inexpensive, Healthy Foods: How To Eat Well When Every Dollar Counts

Look for foods with a variety of nutrients that last a long time and work in multiple meals — like legumes, whole grains and frozen or canned produce

Person squeezing mustard onto their hotdog in a bun
June 18, 2026/Nutrition

Are Hot Dogs Healthy?

The traditional hot dog isn’t exactly a nutritious choice, but that doesn’t mean you can’t enjoy one here and there

Trending Topics

Person looking at face in mirror, seeing changes in their skin

How Taking a GLP-1 Medication Can Affect Your Face, Body and Overall Appearance

Rapid weight loss can cause loose skin, facial volume loss and body contour changes

Person sitting in chair with hand on tummy and hand on mouth, burping

Burping a Lot? These Could Be the Reasons Why

Swallowing too much air, certain foods and drinks, and digestive conditions can all make you belch more

People practicing safe hygiene to ward off sickness, like washing hands and disinfecting

Why Is Everybody Getting Sick?

From poor hand hygiene and ventilation issues to contaminated food, many factors can make infectious diseases spread quickly

Ad