Nutrition News

Too often, people pass a cardiac checkup only to collapse with a heart attack days later. Now scientists have found a clue that one day may help doctors determine if a heart attack is imminent, in hopes of preventing it. Most heart attacks happen when fatty deposits in an artery burst open, and a blood clot then forms to seal the break. If the clot is too big, it blocks off blood flow.

People who follow a vegan lifestyle -- strict vegetarians who try to eat no meat or animal products of any kind -- may increase their risk of developing blood clots and atherosclerosis or "hardening of the arteries," which are conditions that can lead to heart attacks and stroke. That's the conclusion of a review of dozens of articles published on the biochemistry of vegetarianism during the past 30 years. The article appears in ACS' Journal of Agricultural and Food Chemistry.

Amgen’s incomplete report on an early major trial of epoetin misled the medical community about the anemia drug’s risks and benefits—and helped make Amgen rich.

Birth control pills may reduce a woman's bone density, according to a study published online July 13 in The Journal of Clinical Endocrinology and Metabolism by Group Health Research Institute (GHRI) scientists. Impacts on bone were small, depended on the woman's age and the pill's hormone dose, and did not appear until about two years of use. The study size and design allowed the researchers to focus on 14- to 18-year-old teenagers, and to look at how bone density might change when a woman stops using the pill.

Activating a specialized type of fat, known as brown adipose tissue, may help combat obesity as well as result in better glucose control for type 2 diabetes, according to new research conducted by scientists at the UC Metabolic Diseases Institute.

In a study examining the factors that play a role in an older adult's transition to disability, intervening illnesses and injuries that led to hospitalization or activity restriction were associated with worsening functional ability, especially among those who were physically frail, according to a report in the November 3 issue of JAMA, a theme issue on aging.

The first changes in the brain of a person with Alzheimer's disease can be observed as much as ten years in advance -- ten years before the person in question has become so ill that he or she can be diagnosed with the disease. This is what a new study from Lund University in Sweden has found.

A long-held mantra suggests that you can't change your family, the genes they pass on, or the effect of these genes. Now, an international team of scientists, led by researchers at McMaster and McGill universities, is attacking that belief.

UC Davis Health System researchers have discovered biological indicators that help explain why some obese people develop chronic diseases such as diabetes and heart disease, and others do not. The researchers took a novel approach of looking specifically at the body fat of people with metabolic syndrome -- a condition characterized by increased blood pressure, high-fasting blood-sugar levels, excess abdominal fat and abnormal cholesterol levels.

For most of us, the "placebo effect" is synonymous with the power of positive thinking; it works because you believe you're taking a real drug. But a new study rattles this assumption. Researchers at Harvard Medical School's Osher Research Center and Beth Israel Deaconess Medical Center (BIDMC) have found that placebos work even when administered without the seemingly requisite deception.

There is now another good reason to exercise. Besides burning calories, exercise restores the sensitivity of neurons involved in the control of satiety (feeling full), which in turn contributes to reduced food intake and consequently weight loss. This is the conclusion of a study led by Brazilian researchers at the University of Campinas...

An increased intake of 'good' potassium salts could contribute significantly to improving blood pressure at the population level, according to new research. The favorable effect brought about by potassium is even estimated to be comparable with the blood pressure reduction achievable by halving the intake of 'bad' sodium salts (mostly from table salt).