My colleague did not want to continue the study

Probiotics have beneficial effect on Gastrointestinal Symptoms. The aim of this study is to determine the effect of probiotic yogurt consumptions on the people who have gastrointestinal symptoms mainly constipation.

In the beginning of the study Constipation Severity Scale and Bristol Stool Scale was applied to the all people who accepted to participate in this study. According to the student T test analysis (α= 0.05, β=0.20 ) 102 people with gastrointestinal symtoms should be included in the study. When 102 people are found with gastrointestinal symptoms second stage of the study will begin. In this stage of the study 102 people are randomly divided into 2 homogeneous groups. 3 day food record will be taken from 102 people at the beginning and again at the end of the study. Probiotic yogurt (Activia Probiotic Yogurt without any aroma-125 g) will be given to one group for 1 month and nothing will be given to the other group (control group).

Inclusion Criteria:

• Living in Izmir
• Individuals who are having BMI between 18.5-24.9 kg / m2
• Having gastrointestinal symptoms according to Constipation Severity Scale and Bristol Stool Scale

Exclusion Criteria:

• Having diagnosed gastrointestinal disease
• Regular consumption of probiotic
• Using of drug that affects gastrointestinal system
• Presence of mental illness