Lots of ink: carbs just as good as protein for weight loss
Friday, February 27th, 2009
Just about everyone has had a go at this story, which ventures a definitive answer on a theme that has swung in different directions over recent years: whether weight-loss diets are more effective if they emphasise protein or if they go heavy on the fats or carbohydrates.
Published in the New England Journal of Medicine, it is a large (811 participants) prospective and randomised trial, hitting most of the hot buttons for quality and reliability in medical research. Overweight adults were assigned to one of four diets, equal in energy content but differing in proportions of macronutrients, which they were to follow for two years. All were offered an exercise program and counselling in addition.
Eighty per cent of people stuck with the program, and they lost an average four kilos regardless of which diet they followed.
At the Boston Globe, Elizabeth Cooney does a nice job of describing the methodology of the Harvard School of Public Health study that gave rise to the flurry of reporting. But she does not go far beyond the confines of the research itself to seek comment, including only a press release statement from the National Heart, Lung, and Blood Institute, which funded the study.
Time’s Tiffany Sharples has scored a lively interview with co-author Catherine Loria and lead author Frank Sacks, who told her such gems as: “We have a really simple and practical message for people: it’s not so much the type of diet you eat. It’s how much you put in your mouth.”
Other stories
- WebMD Kathleen Doheny : Best Diet? The One You’ll Follow
- CBCnews.ca : Calories, not diet type, matter for weight loss, trial shows
- Chicago Sun-Times : Low-fat vs low-carb
- Baltimore Sun – Kelly Brewington : Diet study finds what counts is calories
- Scientific American – Coco Ballantyne : Weight-Loss Winner: A Diet High in Fiber, Low in Calories
- Daily Telegraph (UK) – Rebecca Smith : Diets that count calories work just as well as Atkins, shows research
Grist for the mill:
- Harvard School of Public Health press release
-JR