January 5th, 2012 by RyanDuBosar in Research
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Consuming excess calories increases body fat, regardless of how many calories come from protein. High-protein diets do affect energy expenditure and storage of lean body mass, just not body fat storage.
To evaluate the effects of overconsumption of low-, normal-, and high-protein diets on weight gain, researchers conducted a single-blind, randomized controlled trial of 25 healthy, weight-stable adults in an inpatient metabolic unit in Baton Rouge, La. Patients were ages 18 to 35 with a body mass index between 19 and 30. The study was headed by George A. Bray, MD, MACP.
After consuming a weight-stabilizing diet for 13 to 25 days, participants were randomized to diets containing 5% of energy from protein (low protein), 15% (normal protein) or 25% (high protein). Only the kitchen staff who supervised participants while they were eating knew the assignments. There was no prescribed exercise, and alcohol and caffeine were restricted.
Patients were Read more »
*This blog post was originally published at ACP Internist*
December 24th, 2011 by RyanDuBosar in Health Policy, Research
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Obesity impacts income, especially among women, according to a report from The George Washington University School of Public Health and Health Services’ Department of Health Policy.
In 2004, wages among the obese were $8,666 less for females and $4,772 lower for males. In 2008, wages were $5,826 less for obese females, a 14.6% penalty over normal weight females, the researchers concluded after examining years 2004 and 2008 in the Bureau of Labor Statistics’ National Longitudinal Survey of Youth.
The research shows that there are significant differences in wages dependent upon race that couldn’t be accounted for by measuring pre-recession (2004) and recession (2008) measures. In 2004, Hispanic women who were obese earned $6,618 less than those who were normal weight. In 2008, Read more »
*This blog post was originally published at ACP Internist*
December 22nd, 2011 by AnthonyKomaroffMD in Research
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The people you live with, work with, talk to, email, chatter with on Twitter and Facebook—your social network—can be good medicine, or bad.
The intriguing new science of social networks is demonstrating how personal interconnections can affect our health. Ideas and habits that influence health for better or for worse can spread through social networks in much the same way that germs spread through communities. In social networks, though, transmission can happen even though the people may be hundreds of miles apart.
An article in the December issue of the Harvard Men’s Health Watch explores how social networks can affect weight and mood.
Spreading weight
A study of people taking part in the landmark Framingham Heart Study found that Read more »
*This blog post was originally published at Harvard Health Blog*
December 13th, 2011 by Toni Brayer, M.D. in Research
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A study published in the journal Academic Pediatrics reveals that 93% of California children’s hospitals offered unhealthy food to outpatients, visitors and staff in the cafeteria and snack bars. Said another way, only 7% offered healthy food. What did these foods consist of to be called “unhealthy”? Try fried food, sweetened beverages, burgers and lots of sugary sweets.
The study found that 81% of the cafeterias placed high-calorie, high-sugar items like ice cream right by the cash register, a well known marketing plan to tantalize and increase selection. Forty four percent didn’t even offer low calorie salad dressing and fewer than 1/3 had no nutrition information.
Health care workers, like the rest of America, suffer from increasing obesity. One study showed over 54% of Read more »
*This blog post was originally published at EverythingHealth*
December 9th, 2011 by HarvardHealth in Health Tips, Research
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These days, most adults are overweight, not active, or both. If you could change just one—become active or lose weight—which would be better?
At least for men, being more fit may have a bigger health payoff than losing weight, according to a new study of more than 14,000 well-off middle-aged men who are participating in the Aerobics Center Longitudinal Study. Researchers followed their health, weight, and exercise habits for 11 years. They estimated how physically fit the men were by calculating their metabolic equivalents (METs) from a treadmill test.
Compared with men whose fitness declined over the course of the study, those who maintained their fitness levels reduced their odds of dying from cardiovascular disease or any other cause by about 30%, even if they didn’t lose any excess weight. Those who improved their fitness levels saw a 40% reduction.
Body-mass index (BMI), a measurement that takes weight and height into account, was not associated with mortality. The results were published in the journal Circulation.
What is “fitness”
Fitness is a measure of Read more »
*This blog post was originally published at Harvard Health Blog*
