The goal of this study is to learn about the effect of olive leaf tea (OLT) in patients with small intestinal bacterial overgrowth aging from 18 to 60 years old. This study aims to answer the following questions: * Will OLT consumption help decrease severity of gastrointestinal signs and symptoms * Will OLT help normalize the intestinal methane and hydrogen gases levels measured by glucose breath test * Does olive leaf tea have an effect on body composition parameters including weight, muscle mass and fat mass Participants with complain of gastrointestinal symptoms like abdominal gas, constipation, diarrhea etc. will undergo glucose breath test(GBT). Participants with diagnosed SIBO by GBT will randomly assigned to two groups. Group A will take the olive leaf tea(1.8g leave powder /tea bag) twice/day after meals for the duration of 2 months. Group B (control group) will not take olive leaf tea. For both groups Symptomatic questionnaire, Glucose breath test, Body composition by InBody analyzer 270 and 24-hour dietary recall will be taken. Researcher will compare readings of group A and Group B taken at Baseline and after 2 months of intervention to assess the effect of Olive leaf tea
Age range
18 Years – 60 Years
Sex
ALL
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Change in Gastrointestinal mean symptomatic score at week 8.
Timeframe: Change from baseline mean symptomatic score at 2 months
Normalization of methane and hydrogen levels in breath test
Timeframe: Change from baseline H2 and CH4 levels at 2 months