Diet & Nutrition

Alternating between a calorie-restricted plan and one high in fat and sugar, resulting in weight gain, is not just down to psychology and behavior. This kind of weight-loss-gain cycle – yo-yo dieting – has a surprising biological driver: The gut.

For the first time, scientists have unraveled how high levels of fructose flip a genetic switch that primes your immune system to overreact to things it would normally ignore. In this "trigger happy" state, the immune system becomes the enemy within.

In a massive study of nearly 50,000 women spanning 30 years, researchers found that drinking more coffee – to a point – during the ages of 40-65 was linked to less chronic disease, physical mobility issues and cognitive decline in later life.

A small daily dose of kombucha made from black tea has been shown to meaningfully reshape the gut microbiome in adults – particularly those with obesity – without any dietary changes. It also reveals a lot about the importance of micro-biodiversity.

If you have an aversion to the bitterness of foods like cabbage or broccoli, you might be a "super-taster," carrying a specific genetic code that dials up taste sensitivity. It may also put you at higher risk of kidney disease and bipolar disorder.

Diagnosing celiac disease often means exposure to the thing that makes you sick, which can be debilitating. It may soon be simpler and pain-free, with a first-of-a-kind test that can detect and gauge the severity of the disease in a test tube instead.

Consuming too much of the dominant fatty acid in olive oil may drive the production of fat cells, creating conditions that could lead to storing more fat long-term. Until now, weight gain has been largely attributed to the calorie content of such fats.

A new study has found that diet-driven weight gain triggers impaired cognitive functioning an symptoms of anxiety, adding to the growing body of evidence that there's an intrinsic biological link between our gut health and our mental health.

By eliminating the essential amino acid cysteine from the diets of mice, and disabling their ability to produce it, scientists have induced rapid and dramatic weight loss. The technique opens a new pathway to explore in weight-loss science.

A sour, tangy cherry most commonly used in baking has a lot of new fans in 2025, celebrating its broad health benefits. We look into its purported ability to relieve pain, gout and gut inflammation, as well as lower blood pressure and promote sleep.

Antibiotics can be literal lifesavers, but they are particularly hard on the gut thanks to their indiscriminate destruction of both good and bad bacteria in the body. New research shows a possible way to fight their negative effects based on diet.

We all know the many health effects that a diet high in saturated fat and refined sugar has on our bodies. Now, in the first study of its kind on humans, scientists find that it may also be negatively impacting our ability to navigate and learn.

If you're among the half of US adults who have tried to lose weight in the last year, you'll know how enthusiasm wanes when you hit the inevitable "plateau." New research shows that this is an adjustment period, and long-term success is over the hill.

One of the ketogenic diet's major perceived drawbacks is an increase in LDL, or so-called bad cholesterol. A new study, though, says that this cholesterol spike doesn't fit the conventional science in terms of its disease-causing ability.

If you have the persistent tone in your ears known as tinnitus, you'll want to pay attention to a new study that shows a link between certain foods and a reduction in risk. The finding offers a potentially easy way to get some peace and quiet.