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Replacing butter with plant oils may produce health benefits

A 2025 study found that replacing butter with plant-based oil such as corn, canola, soybean, or olive oil is associated with significantly lower risks of dying from cardiovascular disease or cancer.

What type of burgers are the healthiest?

Meatless burgers-which include plant-based meat alternatives like Beyond Burger and Impossible Burger and veggie burgers-are healthy replacements for traditional hamburgers. Those with the lowest amounts of saturated fat and sodium are the best options.

Raising potassium intake might lower high blood pressure

Increasing potassium levels while lowering sodium may be more effective in lowering high blood pressure than reducing dietary salt alone, particularly for men, according to a 2025 study.

Eat a healthy diet and banish a big belly to protect your mind

In a 2025 study, people with the healthiest diets and trimmest bellies at midlife had better brain connections and skills decades later, compared with people who ate the worst diets and had the most belly fat.

Heart-healthy dinner ideas from Harvard doctors

A healthy diet is a proven and powerful way to lower your risk of heart disease. Since dinner is often the main meal of the day, it's a good time to feature foods that support cardiovascular health. Four Harvard physicians share their favorite healthy dinners, which focus on lean protein (such as tofu, fish, and chicken) and a variety of vegetables.

Popular no-calorie sweetener may increase hunger

In a 2025 study, researchers found that many people who drank water containing the no-calorie sweetener sucralose (Splenda) had increased appetite and cravings compared with those who drank water sweetened with table sugar or plain water.

Diets rich in plant-based foods linked to healthy aging

Following a mostly plant-based diet starting in middle age can boost a person's odds of healthy aging, defined as reaching age 70 free from chronic disease while also maintaining cognitive, physical, and mental health, according to a 2025 study.

Want to live longer? Replace butter with plant-based oil

In a 2025 study of more than 221,000 people followed for more than 30 years, scientists calculated that swapping about a tablespoon of butter per day for about two teaspoons of olive, soybean, or canola oil was tied to a 17% reduction in premature death.

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