This research aims to study the behavior of adolescents consume yogurt in Bangkok. The objective is to Understand the behavior of consumption of yogurt in adolescents. The samples used in the study. Teenagers in Bangkok on 350 samples from the formula of Yamane. We will divide into 6 episodes,North of Bangkok,East of Bangkok,Central Bangkok,South of Bangkoks,south and north Krung Thon.Sampling is random data. After sampling, the researchers found. Most people who consumed yogurt as women are in the age range of 19-21 years, depending on undergraduate education.