Is Salt Bad for Your Heart?

There's no denying that salt is an integral part of some of our favorite savory treats, like potato chips, pretzels and French fries, not to mention its frequent use in cooking to boost the flavors of other ingredients.

However, consuming too much salt can harm your overall health, especially your heart health. High salt intake can lead to problems like high blood pressure and damage to the body's arteries, increasing your risk for serious cardiovascular diseases like heart failure, stroke and coronary artery disease.

Keep reading to learn more about how salt affects your health and how limiting it may support your long-term heart wellness.

When Salt Can Be a Problem for Heart Health

Your body naturally requires a small amount of salt for normal processes, including balancing your fluids and keeping muscles and nerves functioning. And when we say, "small amount," we mean about 200 to 500 mg of salt per day, or about a quarter teaspoon.

The problem is that most processed foods contain much higher levels of sodium, which can lead to an unhealthy intake. For example, one portion of certain foods you might eat every day has a higher sodium content than what your body needs daily, such as:

• Bacon: about 1,500 mg
• Canned soups: around 700 to 800 mg
• Cereals: about 250 mg
• Cold cuts: about 500 to 900 mg
• Frozen meals: between 700 to 1,000+ mg
• Pretzels and chips: generally, around 1,500 mg
• Processed cheeses: around 800 mg
• Soy sauce: about 7,000 mg

Consuming too much sodium daily is a risk factor for high blood pressure, medically known as hypertension. In turn, this can raise your chances for several heart conditions, such as:

• Coronary artery disease
• Heart failure
• Heart attack (myocardial infarction)
• Left ventricular hypertrophy
• Stroke

And if you continue to consume too much salt every day, the cumulative effect on your heart health can lead to serious health concerns, such as:

• Arrhythmia (abnormal heart rhythm)
• Atherosclerosis (hardening of the arteries)
• Faster vascular aging
• Irreversible heart damage
• Thickening of the heart muscles (hypertrophy)

But the good news is that you can still eat delicious foods, including sweet treats, that contain less salt. Check out our list of low-sodium recipes for tasty foods that can nurture your heart health.

How Salt Affects Your Heart and Blood Vessels

Salt intake is all about balance, making sure you consume enough to keep your body healthy without so much that it can damage your heart and cardiovascular system.

Many people wonder why salt is bad for their hearts if their bodies need it to function properly. When you have too much salt in your system, your body can retain more water and other fluids than it should. Fluid retention increases your blood volume, which means your cardiovascular system needs to work harder to pump blood, potentially increasing your risk of high blood pressure.

Having a higher blood volume and increased blood flow also puts greater strain on your arteries, which can cause them to stretch or stiffen, leading to permanent negative changes. In fact, according to the American Heart Association, within 30 minutes of eating too much salt, the functioning of your blood vessels becomes impaired.

Additionally, your heart now needs to work harder, which can weaken the heart muscle over time. It's also important to note that when your body retains too much water, it can damage your kidneys and potentially lead to chronic kidney disease.

How Much Salt Is Too Much?

When it comes to salt and heart health, making sure you and your family don't exceed daily intake recommendations is key. According to the USDA's Dietary Guidelines for Americans 2025-2030, anyone ages 14 and up should consume less than 2,300 mg of salt every day. This amount decreases for children under 13.

It's also important to remember that there’s a difference between naturally occurring salt in foods and added excess sodium used in many processed foods, like cold cuts, other processed meats, snacks and canned foods. The added sodium in these foods acts as a preservative and a texture and flavor enhancer.

Many whole foods like vegetables, fruits, dairy and even drinking water, naturally have salt content. However, this amount is usually very low and is offset by other nutrients that help keep the body balanced. Here are some examples:

• Fruits naturally have little to no added sodium, usually between 5 and 20 mg
• The amount of sodium in your drinking water depends on where you live, but it normally doesn't exceed 200 mg/L
• Milk and plain yogurt generally have 90 to 150 mg of sodium per cup
• Most natural vegetables contain less than 10 mg of sodium, with celery being the highest, around 30 to 50 mg

But it’s important to know that certain individuals may be more sensitive to salt and need to be more aware of their intake.

Who’s Most Sensitive to Salt?

Knowing the potential risks between salt and heart health is important for everyone, but especially those who are more sensitive to salt, such as people with:

• Chronic kidney disease
• Diabetes
• High blood pressure or another heart condition

Additionally, past studies show that African Americans are more sensitive to salt than other ethnic groups, and women generally have a higher sensitivity than men.

If you’re ever unsure about your salt sensitivity, it's always a good idea to speak with your primary care provider for their recommendations.

Practical Ways to Reduce Sodium Without Sacrificing Flavor

Now that you know more about the importance of limiting salt for heart health, you may wonder how you can still make food taste good when reducing the amount of salt you use.

The good news is that there are lots of ways to add flavor to your cooking by swapping added salt for:

• Chopped fresh herbs
• Citrus zest or juice
• Flavor enhancers like onion and garlic
• Salt-free spices and spice mixes
• Vinegars

When purchasing canned food, packaged foods or frozen meals:

• Check that meat and fish haven’t been treated with added salt
• Choose frozen veggies without any added sauce or seasonings
• Drain or rinse canned foods to remove some sodium
• Look for "low sodium" and "reduced sodium" labels
• Read nutrition labels in the grocery store carefully to compare sodium amounts and brands

And when eating out at a restaurant:

• Ask for your food to be prepared without salt
• Don't be afraid to ask how much salt is used in a dish
• Order your food baked, grilled or steamed
• Request sauces, gravies, butter, salad dressings and other condiments on the side
• Take half of your meal home if you're worried about its sodium level

If you’re ever unsure about your current diet or are looking for more ways to reduce your salt intake, it’s best to talk to your doctor.

When to Talk to Your Doctor About Salt Intake

During your annual exam, it's always a good idea to talk to your AdventHealth primary care provider about your daily salt intake so they can offer guidance and suggestions.

However, you should seek medical attention from the closest urgent care or emergency room if you suddenly experience:

• Dizziness or vomiting from having sodium levels too low
• Excessive salt cravings
• Fast, major swelling in your legs or face
• Intense thirst and/or unnaturally frequent urination
• Sudden weight gain if you have heart disease or kidney disease

Rest assured, your heart is in good hands with our board-certified physicians and dedicated care teams.

Putting Our Hearts Into Caring for Yours

Making heart-healthy choices can provide your body with the sodium it needs without harming your cardiovascular system. And at AdventHealth, we’re here to be your guide and provide you with the heart-smart choices you need to live a healthy life.

If you have more questions regarding salt and heart health, make an appointment today at AdventHealth Primary Care+.