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Comparison of a low carbohydrate and low fat diet for weight maintenance in overweight or obese adults enrolled in a clinical weight management program.

Lecheminant JD, Gibson CA, Sullivan DK, Hall S, Washburn R, Vernon MC, Curry C, Stewart E, Westman EC, Donnelly JE - Nutr J (2007)

Bottom Line: The LF group decreased BW from 86.3 +/- 12.0 kg at 3 months to 86.0 +/- 14.0 kg at 9 months (P = 0.96).BW was not different between groups during weight maintenance (P = 0.87).Fifty-five percent (16/29) and 50% (13/26) of participants for the LC and LF groups, respectively, continued to decrease their body weight during weight maintenance.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Kinesiology and Health Education, Southern Illinois University Edwardsville, Edwardsville, USA. jlechem@siue.edu

ABSTRACT

Background: Recent evidence suggests that a low carbohydrate (LC) diet may be equally or more effective for short-term weight loss than a traditional low fat (LF) diet; however, less is known about how they compare for weight maintenance. The purpose of this study was to compare body weight (BW) for participants in a clinical weight management program, consuming a LC or LF weight maintenance diet for 6 months following weight loss.

Methods: Fifty-five (29 low carbohydrate diet; 26 low fat diet) overweight/obese middle-aged adults completed a 9 month weight management program that included instruction for behavior, physical activity (PA), and nutrition. For 3 months all participants consumed an identical liquid diet (2177 kJ/day) followed by 1 month of re-feeding with solid foods either low in carbohydrate or low in fat. For the remaining 5 months, participants were prescribed a meal plan low in dietary carbohydrate (~20%) or fat (~30%). BW and carbohydrate or fat grams were collected at each group meeting. Energy and macronutrient intake were assessed at baseline, 3, 6, and 9 months.

Results: The LC group increased BW from 89.2 +/- 14.4 kg at 3 months to 89.3 +/- 16.1 kg at 9 months (P = 0.84). The LF group decreased BW from 86.3 +/- 12.0 kg at 3 months to 86.0 +/- 14.0 kg at 9 months (P = 0.96). BW was not different between groups during weight maintenance (P = 0.87). Fifty-five percent (16/29) and 50% (13/26) of participants for the LC and LF groups, respectively, continued to decrease their body weight during weight maintenance.

Conclusion: Following a 3 month liquid diet, the LC and LF diet groups were equally effective for BW maintenance over 6 months; however, there was significant variation in weight change within each group.

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Individual Participant Responses in Body Weight for the Low Fat Group during Weight Maintenance.
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Figure 3: Individual Participant Responses in Body Weight for the Low Fat Group during Weight Maintenance.

Mentions: Differences in body weight between the two groups were not significant across the 6 months of weight maintenance (P = 0.87). Adjusting for medication use and body weight at the beginning of weight maintenance did not influence the outcome. Figure 1 shows body weight at 2 week intervals across the 6 months of weight maintenance. At the beginning of weight maintenance the low carbohydrate group had a body weight of 89.2 ± 14.4 kg that increased to 89.3 ± 16.1 kg at 9 months (P = 0.84) and the low fat group had a body weight of 86.3 ± 12.0 kg at 3 months that decreased to 86.0 ± 14.0 kg at 9 months (P = 0.96). In the low carbohydrate group, 55% (16/29) of participants decreased their body weight during weight maintenance and 50% (13/26) of participants in the low fat group decreased their body weight during weight maintenance (Figures 2 &3).


Comparison of a low carbohydrate and low fat diet for weight maintenance in overweight or obese adults enrolled in a clinical weight management program.

Lecheminant JD, Gibson CA, Sullivan DK, Hall S, Washburn R, Vernon MC, Curry C, Stewart E, Westman EC, Donnelly JE - Nutr J (2007)

Individual Participant Responses in Body Weight for the Low Fat Group during Weight Maintenance.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2228297&req=5

Figure 3: Individual Participant Responses in Body Weight for the Low Fat Group during Weight Maintenance.
Mentions: Differences in body weight between the two groups were not significant across the 6 months of weight maintenance (P = 0.87). Adjusting for medication use and body weight at the beginning of weight maintenance did not influence the outcome. Figure 1 shows body weight at 2 week intervals across the 6 months of weight maintenance. At the beginning of weight maintenance the low carbohydrate group had a body weight of 89.2 ± 14.4 kg that increased to 89.3 ± 16.1 kg at 9 months (P = 0.84) and the low fat group had a body weight of 86.3 ± 12.0 kg at 3 months that decreased to 86.0 ± 14.0 kg at 9 months (P = 0.96). In the low carbohydrate group, 55% (16/29) of participants decreased their body weight during weight maintenance and 50% (13/26) of participants in the low fat group decreased their body weight during weight maintenance (Figures 2 &3).

Bottom Line: The LF group decreased BW from 86.3 +/- 12.0 kg at 3 months to 86.0 +/- 14.0 kg at 9 months (P = 0.96).BW was not different between groups during weight maintenance (P = 0.87).Fifty-five percent (16/29) and 50% (13/26) of participants for the LC and LF groups, respectively, continued to decrease their body weight during weight maintenance.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Kinesiology and Health Education, Southern Illinois University Edwardsville, Edwardsville, USA. jlechem@siue.edu

ABSTRACT

Background: Recent evidence suggests that a low carbohydrate (LC) diet may be equally or more effective for short-term weight loss than a traditional low fat (LF) diet; however, less is known about how they compare for weight maintenance. The purpose of this study was to compare body weight (BW) for participants in a clinical weight management program, consuming a LC or LF weight maintenance diet for 6 months following weight loss.

Methods: Fifty-five (29 low carbohydrate diet; 26 low fat diet) overweight/obese middle-aged adults completed a 9 month weight management program that included instruction for behavior, physical activity (PA), and nutrition. For 3 months all participants consumed an identical liquid diet (2177 kJ/day) followed by 1 month of re-feeding with solid foods either low in carbohydrate or low in fat. For the remaining 5 months, participants were prescribed a meal plan low in dietary carbohydrate (~20%) or fat (~30%). BW and carbohydrate or fat grams were collected at each group meeting. Energy and macronutrient intake were assessed at baseline, 3, 6, and 9 months.

Results: The LC group increased BW from 89.2 +/- 14.4 kg at 3 months to 89.3 +/- 16.1 kg at 9 months (P = 0.84). The LF group decreased BW from 86.3 +/- 12.0 kg at 3 months to 86.0 +/- 14.0 kg at 9 months (P = 0.96). BW was not different between groups during weight maintenance (P = 0.87). Fifty-five percent (16/29) and 50% (13/26) of participants for the LC and LF groups, respectively, continued to decrease their body weight during weight maintenance.

Conclusion: Following a 3 month liquid diet, the LC and LF diet groups were equally effective for BW maintenance over 6 months; however, there was significant variation in weight change within each group.

Show MeSH
Related in: MedlinePlus