Healthy Eating Archive

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.

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.

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.

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.

People who consume plant-based oil instead of butter may have a lower risk of death from cancer and cardiovascular disease, according to a 2025 study. These oils have more heart-healthy unsaturated fats, which help lower cholesterol levels and chronic inflammation.

Heart-friendly breakfast ideas include a mix of foods that provide protein, fiber, and unsaturated fat, which can help stave off hunger until lunchtime. Examples include eggs cooked with vegetables, Greek yogurt with berries and nuts, or oatmeal cooked with milk and topped with fruit. Other quick options are a slice of whole-grain toast spread with mashed avocado and cherry tomatoes, almond butter and sliced apple, or ricotta cheese and sliced kiwi.

A small randomized controlled trial published in February 2025 suggests that eliminating oligosaccharides from the diet might be enough to ease symptoms of irritable bowel syndrome, as opposed to eliminating all the categories of food known as FODMAPs.

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.