Diet and nutrition Archive

The brain communicates with the gastrointestinal tract through a connection scientists call the gut-brain axis. Evidence suggests that when the gut is irritated by triggers such as infection, stress, food, allergies, alcohol, or heredity, the resulting inflammation could influence mood.

Gut health plays a bigger role in overall well-being than many people realize, affecting digestion, mood, and immunity. Simple daily choices around food, movement, sleep, stress, and hydration can support a healthier, more resilient gut.

Dragon fruit stands out for its striking look, mild sweetness, and a mix of fiber, minerals, and antioxidant compounds. It isn't a magic "superfood," but it's a healthy, colorful way to help people eat more fruit in fun new ways.

Avocados have a mix of fiber, healthy fat, antioxidants, and key minerals that support heart health. But avocados aren't low-calorie foods. They're best added to the diet by swapping them for something else, such as subbing mashed avocado for butter on toast.

Bone broth, made by slowly simmering animal bones with seasonings, offers rich flavor, more protein than regular broth, and amounts of minerals. Choosing low-sodium varieties or making it at home helps limit additives and salt.

Retainers have benefits beyond keeping a nice smile after braces, aligners, or other orthodontic treatment. The appliances help maintain teeth alignment, protecting them from extra wear and tear. Several types of retainers can help. The choice depends on a person's needs and habits.

The new Dietary Guidelines for Americans are a mixed bag. While their advice to choose whole foods, avoid highly processed foods, and limit added sugars is sound, their promotion of animal-based foods like meat and full-fat dairy products is less supported by rigorous scientific research.

A 2025 study suggests that polyphenols, found in a wide range of plant foods, may have long-term benefits for the heart. Over an average of 11 years, people whose diets contained the most polyphenol-rich foods ranked lowest on scores of heart disease risk.

While many people may think that a more sustainable diet is more expensive, a 2025 study suggests that in fact, foods with smaller environmental footprints tend to cost less. Choosing fewer animal-based foods and more plants can be better for health, budgets, and the planet.