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ARS Home » Plains Area » Grand Forks, North Dakota » Grand Forks Human Nutrition Research Center » Healthy Body Weight Research » Research » Publications at this Location » Publication #252499

Title: Vegetable and fruit consumption during weight loss is positively correlated with weight and fat loss

item Whigham Grendell, Leah
item Valentine, Ashley
item Zhang, Zhumin
item Atkinson, Richard
item Tanumihardjo, Sherry

Submitted to: Annual Scientific Meeting NAASO, The Obesity Society
Publication Type: Abstract Only
Publication Acceptance Date: 5/15/2010
Publication Date: 10/10/2010
Citation: Whigham Grendell, L.D., Valentine, A.R., Zhang, Z., Atkinson, R.L., Tanumihardjo, S.A. 2010. Vegetable and fruit consumption during weight loss is positively correlated with weight and fat loss [abstract]. Obesity . 18(Suppl 2):S104.

Interpretive Summary:

Technical Abstract: Background: Recommendations to increase vegetable and fruit consumption often accompany guidelines for weight loss. A previous study indicated that people who were instructed to count calories lost more weight than those simply instructed to increase vegetable and fruit intake. Objective: The objective was to determine if actual vegetable and fruit intake based on serum carotenoid concentrations was correlated to weight loss and body composition changes. Design: 60 obese (BMI 30-40 kg/m2) volunteers were enrolled in a weight-loss intervention. Subjects were randomly assigned to one of two groups: calorie reduction group was instructed to restrict total intake by 500 kcal and limit fat to 25% and high vegetable group was instructed to increase vegetable intake to 8 servings/d and fruit to 2-3 servings/d. For the first 3 mo, subjects were provided breakfast and lunch 5 d/wk and taught basic nutrition principles to assist them in meeting dietary goals. As a transition, subjects received breakfast and lunch 2 d/wk during the 4th month and regular phone calls of decreasing frequency for the remainder of the year. Results: Vegetable and fruit intake and most serum carotenoid concentrations increased from baseline to 3 mo and remained elevated at 12 mo. Total serum carotenoid concentrations correlated positively with self-reported vegetable intake and combined fruit and vegetable intake. Weight, fat, and %fat were negatively correlated with serum carotenoid concentrations. Conclusions: Increased vegetable consumption is an appropriate strategy for weight loss. However, increased vegetable consumption must still happen within the context of reducing total caloric intake.