A large, 30-year study conducted among healthcare professionals found that coffee drinking was linked to a lower risk of death from heart disease, stroke, diabetes, neurological diseases and suicide. No association with reduced cancer risk was found, however. The risk of death was reduced by six percent among nonsmokers who drank at least one cup of coffee – either caffeinated or decaffeinated – a day. The greatest reduction in risk – 15 percent – was found among nonsmokers who drank between three and five cups a day. Controlling for age, alcohol consumption, BMI and other health and diet factors did not change the results.
"Association of Coffee Consumption with Total and Cause-Specific Mortality in Three Large Prospective Cohorts", Circulation, November 18, 2015
Weight loss programs for young adults that employ smartphone apps – even with personalized coaching – are no more effective at helping shed pounds than instructional fliers, a U.S. study has found. It’s upsetting news, because 35 percent of Americans in the 18-35 age range are obese. The randomized study included 365 people. One group used a free Android app called CITY (Cell Phone Intervention for You), designed for the study by university scientists. On average, participants who used the app lost about two pounds after two years, about the same as a control group that received handouts about exercise and nutrition. A separate arm of the study worked with the app and a personal coach, with the same disappointing results.
" Cell phone intervention for you (CITY): A randomized, controlled trial of behavioral weight loss intervention for young adults using mobile technology. ", Obesity, November 20, 2015
Junk food in and of itself may be nutritionally bankrupt, even harmful to health, but it is not the leading cause of obesity, Cornell University scientists say in a new study. It’s more complicated than that. For example,overall diet and amount of physical activity are also key factors. The study reviewed a representative sample of about 5,000 adults in the United States. It found that consumption of soda, candy and fast food is not linked to body mass index (BMI) for 95 percent of the population. Those on the extreme ends of the BMI spectrum – the chronically underweight or morbidly obese – are the exceptions because they are more likely to eat junk food and less likely to eat fruits and vegetables. The simple point is that narrowly targeting junk food is ineffective and self-defeating because “it distracts from the real underlying causes of obesity."
"Fast Food, Soft Drink, and Candy Intake is Unrelated to Body Mass Index for 95% of American Adults", Obesity Science & Practice, November 20, 2015
Obese people are often afflicted with metabolic syndrome, an array of conditions that include excess abdominal fat, high blood pressure, low "good" cholesterol, and high levels of blood sugar and fats. People with metabolic syndrome have one thing in common: they tend to be deficient in vitamin E (alpha-tocopherol), which the body needs to fight oxidative stress that can lead to heart disease, diabetes, Alzheimer's disease and cancer. The key problem for obese people is that, while they need higher levels of vitamin E to fight oxidative stress, their obesity is preventing absorption of the vitamin. And, contrary to recent findings, dairy fat does not increase the bioavailability of vitamin E, at least in supplement form.
"α-Tocopherol bioavailability is lower in adults with metabolic syndrome regardless of dairy fat co-ingestion: a randomized, double-blind, crossover trial. ", American Journal of Clinical Nutrition, November 20, 2015
|
The New York Times, November 09, 2015
|