J Obes Metab Syndr.  2017 Dec;26(4):257-265. 10.7570/jomes.2017.26.4.257.

Effect of Diet Change on Gut Microbiota: Observational Pilot Study of Four Urban Couples

Affiliations
  • 1Department of Medicine, Seoul National University College of Medicine, Seoul, Korea.
  • 2Department of Thoracic and Cardiovascular Surgery, SMG-SNU Boramae Medical Center, Seoul, Korea.
  • 3Department of Nutrition Service, SMG-SNU Boramae Medical Center, Seoul, Korea.
  • 4Department of Family Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea. bo39@snu.ac.kr
  • 5Omicspia Co., Ltd., Daejeon, Korea.

Abstract

BACKGROUND
Recent studies have focused on changes in gut microbiota following a dietary change. We identified how the distribution of gut microbiota changed when the dietary habits of young city dwellers improved using an intervention in which married couples shared the same dietary habits.
METHODS
Four married couples in their 30s with irregular eating habits and sedentary lifestyles were asked whether they had any uncomfortable symptoms. A nutritionist advised them to reduce their intake of processed meats, carbonated beverages, and late-night snacks. After a 6-week intervention, subjects were asked whether they observed any changes in their symptoms. Their stool samples were collected before and after the intervention and analyzed to determine whether the gut microbiota had changed.
RESULTS
After the dietary intervention, some subjective symptoms of the participants improved. Specifically, a subject who complained of frequent abdominal pain/diarrhea and one who complained of fatigue showed improvement in those symptoms. In addition, some subjects showed improvements in symptoms such as skin disease or constipation. Intestinal microorganisms between spouses who share the same dietary habits were found to be similar.
CONCLUSION
Improvements in eating habits can change the distribution of gut microbiota and alleviate various uncomfortable medical symptoms. Within married couples, the distribution of gut microbiota became similar when the spouses shared the same dietary habits. These results suggest a possible correlation between family-level changes in eating habits and the health of all family members.

Keyword

Diet therapy; Gastrointestinal microbiome; Urban population; Spouses

MeSH Terms

Carbonated Beverages
Constipation
Diet Therapy
Diet*
Eating
Family Characteristics*
Fatigue
Food Habits
Gastrointestinal Microbiome*
Humans
Meat
Nutritionists
Pilot Projects*
Sedentary Lifestyle
Skin Diseases
Snacks
Spouses
Urban Population
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