Abstract

Overweight and obesity are a global concern. Meal replacements (MRs) are portion- and calorie-controlled meals, which make the food environment part of an individual’s weight loss regimen. White sweet potato (WSP; Ipomoea batatas L.), used in traditional medicine in Brazil, Japan, and Taiwan, is a healthy carbohydrate source. In this randomized controlled trial, we assessed the effects of a WSP formula on body weight management in 58 white-collar workers through MR to elucidate the effects of this WSP-MR on factors leading to overweight. The participants consumed either two packs a day for a total of 132 g of WSP (WSP-MR group) or a normal diet daily (non-WSP group) for eight weeks. After eight weeks, body weight, body fat, body mass index, wrist circumference, thigh circumference, calf circumference, mid-arm circumference, and triceps skinfolds decreased significantly in both the groups. Moreover, the WSP-MR group demonstrated a 5% decrease in body weight, body fat, body mass index, and mid-arm circumference and a 3.5% decrease in glycated hemoglobin levels (p < 0.05). The treatment was well tolerated, without side effects or adverse events. Thus, our WSP formula as an MR can facilitate individual weight loss and thus has commercial application in the food industry.

Highlights

  • Overweight and obesity has rapidly become a leading public health concern in many countries.Nutrition and health surveys found that the overweight and obesity prevalence was 37.1% in China in2002 [1] and 43.3% in Taiwan during 2005–2008 [2]

  • Eligible white-collar workers, aged 30–50 years and overweight according to the body mass index (BMI) range of 24–30, according to the Department of Health (DOH) in Taiwan, in the regular health check-ups were recruited from Chunghwa Picture Tubes, Ltd. (Taoyuan, Taiwan)

  • Equality between the groups were assumed in terms of the anthropometric measurement of body height, body weight, BMI, body fat, waist circumference (WC), hip circumference (HC), W-H ratio, and basal metabolic rate

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Summary

Introduction

Overweight and obesity has rapidly become a leading public health concern in many countries.Nutrition and health surveys found that the overweight and obesity prevalence was 37.1% in China in2002 [1] and 43.3% in Taiwan during 2005–2008 [2]. Overweight and obesity has rapidly become a leading public health concern in many countries. Nutrition and health surveys found that the overweight and obesity prevalence was 37.1% in China in. In the United States, the obesity prevalence among workers with relatively low-obesity occupations (i.e., white-collar jobs) significantly increased between. 2004–2007 and 2008–2011, but that among workers with high-obesity occupations (i.e., blue-collar jobs) did not [3]. Provision of nutritious, healthy, convenient, and safe meal replacement (MR). Foods to the overweight or obese population has become a topic of research interest. A person may substitute a regular meal with an MR for several reasons. MRs are portion- and calorie-controlled meals, which aid in making individuals’ food environments more selective for long-term weight loss [4]. Liquid MR shakes in combination with an energy-restricted diet for weight

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