Effect of mastication evaluation and intervention on body composition and biochemical indices in female patients with obesity: a randomized controlled trial.

Nagisa Hidaka, Satoshi Kurose, Nana Takao, Takumi Miyauchi, Sachiko Nakajima, Sawako Yoshiuchi, Aya Fujii, Kazuhisa Takahashi, Hiromi Tsutsumi, Daiki Habu, Kazuhiro Taniguchi, Yutaka Kimura

Journal: BMC endocrine disorders 2023;23(1):134

PMID: 37340315

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Abstract

BACKGROUND

A limited number of studies have evaluated the masticatory indices of individuals with obesity who only chew their food a few times and for shorter duration or who were provided with an instructional intervention. This study aimed to examine the effects of a 6-month instructional mastication intervention on the body composition and biochemical indices in female patients with obesity.

METHODS

Female patients with obesity were randomly classified into a conventional treatment group (CTG; 12 individuals), which only received normal nutritional and exercise guidance, and a mastication intervention group (MIG; 16 individuals), which received an additional mastication guidance. The MIG received guidance on foods requiring increased number of chews and chewing duration, eating techniques, and the proper method of cutting foods.

RESULTS

Changes in the masticatory, body composition, and biochemical indices were compared before and after the 6-month intervention. The values of body composition indices decreased significantly in both groups; however, the rate of change in body mass index significantly decreased in the MIG. In addition, the values of biochemical indices were significantly decreased in the MIG compared with that in the CTG, which is attributed to the addition of mastication instruction to female patients with obesity.

CONCLUSION

Increasing the number of chews and duration of chewing times for carbohydrates, which are staple foods, possibly contributed to weight loss and improvement of glucose metabolism.

TRIAL REGISTRATION

UMIN, UMIN000025875. Registered on 27 Jan 2017.

Address: Department of Health Science, Kansai Medical University, Hirakata, Osaka, 573-1010, Japan. [email protected].; Faculty of International Studies, Osaka Sangyo University, Daito, Osaka, 574-8530, Japan. [email protected].; Department of Health Science, Kansai Medical University, Hirakata, Osaka, 573-1010, Japan.; Health Science Center, Kansai Medical University Hospital, Hirakata, Osaka, 573-1010, Japan.; Department of Medicine II, Kansai Medical University, Hirakata, Osaka, 573-1010, Japan.; Graduate School of Human Life and Ecology Division of Human Life and Ecology, Osaka Metropolitan University, Osaka-shi, Osaka, 558-8585, Japan.; Faculty of Human Ecology, Department of Aesthetic Design and Technology, Yasuda Women's University, Hiroshima-shi, Hiroshima, 731-0153, Japan.

DOI: 10.1186/s12902-023-01379-2

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Full Text Sources:

Medical:

https://medlineplus.gov/obesity.html

Research Materials:

https://antibodies.cancer.gov/detail/CPTC-CXCL9-2

MeSH Terms: Humans, Female, Mastication, Obesity, Body Mass Index, Time Factors, Weight Loss