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Demographics, dietary composition influence adherence to diet
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Age, race and fat content may all play a role in adherence to a calorie-restricted diet, according to new data.
For the Preventing Overweight Using Novel Diet Strategies (POUNDS LOST) trial, researchers randomly assigned 811 adults aged 30 to 70 years to one of four macronutrient diets with varying fat and protein content for 6 months. They used a computer tracking system to gather information on several factors, including age, sex and race, that may have affected adherence to both the dietary and behavioral components of the program.
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Dietary adherence appeared to be higher among participants in the high-fat diet group compared with the low-fat group (P<.0001), the researchers said, whereas dietary and behavioral adherence were better among participants aged older than 52 years vs. those who were younger. For the behavioral component alone, white participants demonstrated better adherence compared with black participants (P<.0001), as did men compared with women (P<.0001). The researchers also reported that dietary adherence was higher among white participants vs. black participants for the low-fat, high-protein diet only (P<.05).
"Dietary composition and demographic factors independently influenced adherence to calorie-restricted diets," the researchers concluded. "Specifically, diets higher in fat content were associated with better dietary adherence. Additionally, Caucasians, men and older adults adhered to behavioral components of the treatment protocol. Older adults also reported better dietary adherence than younger participants."
For more information:
- Anton S. 248-P. Presented at: the 29th Annual Meeting of the Obesity Society; Oct. 1-5, 2011; Orlando, Fla.
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