Food choice limit 'no help to weight loss'
Source: Agencies |
June 2, 2012, Saturday
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Print Edition
Print Edition
REDUCING people's junk food options helps them cut back on the number of calories they take in at the time, but doesn't reduce their overall calorie load or help them lose weight, according to a study in the United States.
"Limiting variety was helpful for reducing intake for that type of food group, but it appeared that compensation occurred in other parts of the diet," said Hollie Raynor, a professor at the University of Tennessee and lead author of the study.
The results, which appeared in the American Journal of Clinical Nutrition, offer a cautionary note to dieters limiting food variety to be watchful of all calories coming in.
Previous studies have shown that people with less variety in their diets tend to be more successful in losing weight and keeping it off, and Raynor said she wanted to see if restricting options for high-calorie, low-nutrition foods could help people lose weight.
Raynor's team asked 200 overweight and obese adults to make lifestyle changes aimed at losing weight. Half were also told to limit the junk food in their diet to just two options, with the idea that monotony leads to a lack of interest in the food.
Both groups ate fewer total calories over the course of the study and lost weight. But the overall reduction in calories and weight loss - around 4.5 kilograms - was the same in each.
"Human beings enjoy eating, so they will find other food to consume than ones being limited," said Alexandra Johnstone, a researcher at the University of Aberdeen in Scotland, who was not involved in the research.
"Limiting variety was helpful for reducing intake for that type of food group, but it appeared that compensation occurred in other parts of the diet," said Hollie Raynor, a professor at the University of Tennessee and lead author of the study.
The results, which appeared in the American Journal of Clinical Nutrition, offer a cautionary note to dieters limiting food variety to be watchful of all calories coming in.
Previous studies have shown that people with less variety in their diets tend to be more successful in losing weight and keeping it off, and Raynor said she wanted to see if restricting options for high-calorie, low-nutrition foods could help people lose weight.
Raynor's team asked 200 overweight and obese adults to make lifestyle changes aimed at losing weight. Half were also told to limit the junk food in their diet to just two options, with the idea that monotony leads to a lack of interest in the food.
Both groups ate fewer total calories over the course of the study and lost weight. But the overall reduction in calories and weight loss - around 4.5 kilograms - was the same in each.
"Human beings enjoy eating, so they will find other food to consume than ones being limited," said Alexandra Johnstone, a researcher at the University of Aberdeen in Scotland, who was not involved in the research.
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