Healthy Eating Archive

Unsweetened cocoa powder has variable amounts of health-promoting flavanols, depending on how it is processed. Fruits and vegetables are better sources of these compounds, which may improve blood pressure and blood sugar.

Processed foods are those that have been changed from their original form. A minimal level of processing may mean the food has simply been chopped and frozen or that inedible parts have been removed. At the next level, processed foods have a few added ingredients. Foods with even more processing are called "ultra-processed" foods. Ultra-processing usually means that the original foods are not recognizable, and include additives such as preservatives, oil, sugar, salt, coloring, and flavoring. If there are more than a few ingredients listed on a food label, that food is probably ultra-processed, which is bad for health.

Compared with eating carbohydrates, eating protein—particularly protein from plants— was associated with lower odds of later developing cognitive declines, according to a Harvard study in the January 2022 issue of The American Journal of Clinical Nutrition.

Nutrient deficiencies are uncommon with a broad and varied diet. But aging, hormonal factors, or diet can leave women short of four key vitamins and minerals: vitamin D, iron, vitamin B₁₂, and calcium. Various tests can reveal nutrient deficiencies, including blood panels. Vitamin D and fish oil supplements may help prevent autoimmune diseases. Multivitamins are usually unnecessary, except in cases where age, pregnancy, digestive challenges, or certain medications interfere with the ability to get adequate nutrition.

A new study suggests a high-fiber diet may protect against dementia. In a group of about 3,700 older adults, those who consumed the most fiber (about 20 grams daily) had the lowest rates of dementia, and those who ate the least fiber (8 grams daily) had the highest rates.

Doctors advise that the best ways to lower risk for heart disease is to exercise, eat right, and adopt healthy lifestyle habits, like stress management, social engagement, and adequate sleep. But what do cardiology doctors do to practice what they preach? Three Harvard cardiologists share their heart-healthy habits and how they've overcome the same challenges their patients face.

Tacos filled with white fish or black beans, topped with vegetables and salsa, is an easy-to-prepare Mexican-inspired meal.

A traditional Nordic diet featuring whole grains, berries, canola oil, fish, and low-fat dairy may improve heart-related risk factors, even if people following the diet don't lose weight.

Researchers who began collecting data on thousands of people, starting when they were children and following up decades later, found that five risk factors influence health outcomes in adulthood. Parents should know the important steps they can take to get their children started toward healthy lives as adults.

Some people decide to adopt a vegan diet because of concerns about the health effects of eating animal products; for others it's more about concern for animal welfare and the environment. Regardless of the motivation, those who want to make this change should anticipate potential pitfalls and be aware of issues specific to vegan eating.