In a study of Japanese schoolchildren, vitamin D supplements taken during the winter and early spring helped prevent seasonal flu and asthma attacks. Read more »

Novartis AG and Astellas Pharma eczema drugs may need their warning labels expanded after dozens of new reported cases of cancer and infection in children, U.S. Food and Drug Administration staff said in documents released on Thursday. Read more »

Antidepressants such as Eli Lilly's Prozac or GlaxoSmithKline's Paxil can help depressed patients with physical illness, and doctors should consider them more often, researchers said on Wednesday. Read more »

U.S. health regulators are taking a closer look at how well devices used by diabetics to monitor their blood sugars work, seeking possible changes for device makers to help make them more reliable. Read more »

Among children and teenagers with asthma, those who also have peanut allergies may have more or more-severe asthma attacks, a new study suggests. Read more »

It may not be surprising, but a new study offers some proof that patients who are worried about their medications are more likely to have side effects from them. Read more »

People who get enough fiber in their diets, particularly from whole grains, may have a lower risk of developing chronic lung disease than those who eat few high-fiber foods, a new study finds. Read more »

Vitamin D is vital in activating human defences and low levels suffered by around half the world's population may mean their immune systems' killer T cells are poor at fighting infection, scientists said on Sunday. Read more »

People who are obese are at increased risk of becoming depressed, and people who are depressed are at increased risk of becoming obese, Dutch researchers have found. Read more »

Can't lose weight on a low-fat diet? Maybe you need to cut carbs instead, and a new genetic test may point the way, maker Interleukin Genetics Inc reported on Wednesday. Read more »