In addition to regular exercise and avoiding smoking, maintaining a balanced diet is one of the most effective ways to keep your heart healthy. The foods you eat can influence cholesterol levels, blood pressure, inflammation, and other factors that affect your risk of heart disease.

Eating plans rich in fiber, antioxidants, and healthy fats have been shown to promote cardiovascular health, while high intakes of added sugars and processed meats are linked to an increased risk of heart problems.

Although many diets claim to improve heart health, the best choices are those supported by science and practical enough to follow long term.

Here are the five best diets for a strong, healthy heart:

1. The Mediterranean Diet

The Mediterranean diet is based on the traditional eating habits of people from Greece and Southern Italy in the 1960s.

It highlights whole, minimally processed foods such as fruits, vegetables, whole grains, legumes, nuts, seeds, fish, and extra virgin olive oil. It also allows moderate portions of poultry, eggs, low fat dairy, and red wine.

Processed snacks, refined carbohydrates, added sugars, and red or processed meats are kept to a minimum or avoided entirely.

The diet’s heart-protective benefits are largely attributed to its emphasis on plant-based foods and healthy fats. Extra virgin olive oil, for example, is rich in monounsaturated fats and antioxidant compounds that help reduce inflammation.

Other factors, like regular physical activity and limited sugar intake, also contribute to the Mediterranean diet’s positive effects on heart health.

2. The DASH Diet

The Dietary Approaches to Stop Hypertension (DASH) diet was designed to help manage and prevent high blood pressure — a key risk factor for heart disease.

Instead of prescribing specific foods, it outlines general serving recommendations based on your calorie needs. It encourages eating fruits, vegetables, whole grains, lean proteins, and low fat dairy, while cutting back on red meat, refined grains, and foods high in sugar.

The DASH diet also recommends limiting sodium to 2,300 mg per day (about 1 teaspoon), or ideally 1,500 mg for better blood pressure control.

Research shows that combining the DASH plan with reduced sodium intake can significantly lower blood pressure, particularly in people with hypertension. Its focus on fiber-rich foods and limited saturated fats also supports long-term heart health.

3. Vegan and Vegetarian Diets

Vegan and vegetarian diets both exclude meat, including poultry and fish. While vegetarians may still consume eggs and dairy, vegans avoid all animal-derived products such as honey, gelatin, and dairy.

These diets emphasize plant-based foods like fruits, vegetables, legumes, whole grains, nuts, seeds, soy products, and healthy plant oils.

Because they’re high in fiber, antioxidants, and anti-inflammatory nutrients, these eating patterns are strongly linked to better heart health.

However, it’s important to focus on food quality. Vegan and vegetarian diets built around refined carbs, added sugars, and processed products don’t provide the same benefits as those based on whole, nutrient-dense foods.

4. The Flexitarian Diet

Created by dietitian Dawn Jackson Blatner, the Flexitarian Diet is primarily plant-based but allows moderate amounts of meat, fish, dairy, and other animal products.

Its goal is to obtain most of your protein from plant sources while offering flexibility to include animal foods occasionally.

The diet promotes whole, natural foods and limits refined grains, added sugars, processed meats, and highly processed items.

Though more flexible than vegan or vegetarian diets, research shows that eating mostly plant-based foods can lower the risk of heart disease. The Flexitarian Diet offers many of the same cardiovascular benefits while being easier to maintain for many people.

5. The TLC Diet

The Therapeutic Lifestyle Changes (TLC) diet, developed by the National Institutes of Health (NIH), was designed to lower cholesterol and reduce the risk of heart disease and stroke.

It combines healthy eating with lifestyle strategies to improve cholesterol levels and maintain a healthy weight. Key recommendations include:

• Less than 7% of daily calories from saturated fat

• Fewer than 200 mg of dietary cholesterol per day

• Less than 2,300 mg of sodium daily

• 25–35% of total calories from fat (including saturated fat)

• 2 grams of plant stanols or sterols daily

• 10–25 grams of soluble fiber daily

• A calorie intake that supports a healthy weight

The TLC diet encourages foods high in soluble fiber — such as oats, beans, lentils, fruits, vegetables, nuts, and seeds — which help lower cholesterol.

It also emphasizes foods containing plant stanols and sterols, found in nuts, seeds, whole grains, fruits, and vegetables, which reduce cholesterol absorption.

The plan also promotes at least 30 minutes of moderate exercise each day.

Key Takeaway

All five diets are proven to promote heart health.

Although each one has a different approach, they share common principles: focusing on whole, minimally processed foods and reducing refined sugars, saturated fats, and processed products.

Remember, eating well is just one part of maintaining a healthy heart. Regular physical activity, avoiding tobacco, and managing stress are equally important for long-term cardiovascular health.