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. 2014 Jul;5(2):340-4.
doi: 10.4103/0976-9668.136180.

Effect of Excessive Water Intake on Body Weight, Body Mass Index, Body Fat, and Appetite of Overweight Female Participants

Free PMC article

Effect of Excessive Water Intake on Body Weight, Body Mass Index, Body Fat, and Appetite of Overweight Female Participants

Vinu Ashok Kumar Vij et al. J Nat Sci Biol Med. .
Free PMC article


Objective: Drinking plenty of water is commonly recommended in weight loss regimens; however, very limited scientific evidence is available to justify this. Here we studied the effect of drinking 1.5 L of water, over and above the usual intake on body weight, body mass index (BMI), body fat, and appetite score in overweight female participants.

Materials and methods: The study was done on 50 overweight female participants, who were instructed to drink 500 mL of water, three times a day 30 min before breakfast, lunch, and dinner. The 1.5 L water intake was over and above their daily water intake and was continued for 8 consecutive weeks. Body weight, BMI, body fat, and appetite score was measured pre and post-study; and the values were compared by paired t-test using Statistical Packages for Social Sciences (SPSS) version 14.0.1.

Results: All the parameters tested were lower after 8 weeks: body weight (pre-study 65.86 ± 3.614 kg vs post-study 64.42 ± 3.704 kg; P < 0.01); BMI (pre-study 26.7002 ± 0.9423 vs post-study 26.1224 ± 1.0632; P < 0.01); sum of skinfold thickness (pre-study 79.626 ± 10.385 mm vs post-study 76.578 ± 10.477 mm; P < 0.01); and the appetite score (pre-study 36.880 ± 4.170 vs post-study 34.673 ± 3.845; P < 0.01).

Conclusions: Our study establishes the role of drinking 1.5 L of excessive water in weight reduction, body fat reduction, and appetite suppression in overweight female participants.

Keywords: Body mass index; overweight; skinfold thickness; visual analogue scale for appetite; water-induced thermogenesis.

Conflict of interest statement

Conflict of Interest: None declared.

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