在年轻、体重正常的受试者自由摄取低脂/高纤维饮食的11周期间出现的自发性体重减轻。

Spontaneous weight loss during 11 weeks' ad libitum intake of a low fat/high fiber diet in young, normal weight subjects.

作者信息

Raben A, Jensen N D, Marckmann P, Sandström B, Astrup A

机构信息

Research Department of Human Nutrition, Royal Veterinary and Agricultural University, Frederiksberg, Denmark.

出版信息

Int J Obes Relat Metab Disord. 1995 Dec;19(12):916-23.

PMID:8963361

Abstract

OBJECTIVE

During the first 11 weeks of 8 months' ad libitum intake of a low fat/high fiber diet (25.5 energy-% fat, 58.5 energy-% carbohydrate, 3.9 g dietary fiber/MJ) primarily aimed at investigating the effect on blood lipids, spontaneous, unintended body weight changes occurred. The objective of the present paper was to elaborate the analyses on changes in body weight and composition during the 11 weeks' intervention period.

MEASUREMENTS

Dietary intake, body weight and composition.

SUBJECTS

Subjects in the intervention (I) (n = 24) and control group (C) (n = 24) were normal weight, young, healthy students.

RESULTS

In the intervention group an overall decrease in body weight (-1.3 +/- 0.4 kg) (mean +/- s.e.m.) (P < 0.01) and fat mass (-1.6 +/- 0.2 kg, P < 0.001) occurred. Fat free mass remained unchanged (0.1 +/- 0.3 kg, n.s.). Subjects with the initially lowest level of body fat (n = 10) gained fat-free mass (0.6 +/- 0.2 kg) (n.s.) and lost fat mass (-0.9 +/- 0.2) (P < 0.01). In the intervention group initial body weight and fat mass correlated significantly to change in body weight (r = -0.59, P = 0.003 and r = -0.53, P = 0.008) and fat mass (r = -0.52, P = 0.01, and r = -0.50, P = 0.01). No changes were observed in the control group.

CONCLUSION

The ad libitum intake of a low fat/high fiber diet lead to a spontaneous loss of body weight and fat mass in young, normal weight subjects.

摘要

目的

在为期8个月的随意摄入低脂/高纤维饮食（脂肪供能占25.5%，碳水化合物供能占58.5%，膳食纤维含量为3.9克/兆焦耳）的前11周，主要目的是研究其对血脂的影响，期间出现了自发的、意外的体重变化。本文的目的是详细分析11周干预期内体重和身体成分的变化。

测量指标

饮食摄入量、体重和身体成分。

研究对象

干预组（I组）（n = 24）和对照组（C组）（n = 24）的研究对象均为体重正常、年轻、健康的学生。

结果

干预组体重总体下降（-1.3±0.4千克）（均值±标准误）（P < 0.01），脂肪量下降（-1.6±0.2千克，P < 0.001）。去脂体重保持不变（0.1±0.3千克，无统计学意义）。最初体脂水平最低的受试者（n = 10）去脂体重增加（0.6±0.2千克）（无统计学意义），脂肪量减少（-0.9±0.2）（P < 0.01）。在干预组中，初始体重和脂肪量与体重变化（r = -0.59，P = 0.003；r = -0.53，P = 0.008）以及脂肪量变化（r = -0.52，P = 0.01；r = -0.50，P = 0.01）显著相关。对照组未观察到变化。