Puberty is a stage of development for children who enter adolescence which is always characterized by the maturity of the sexual organs and has reached the ability to reproduce. In young women, the symptoms of hormonal changes can be seen clearly in the physical appearance in question. In addition, puberty in adolescent girls is also marked by menarche (dysmenorrhea), commonly referred to as menstruation or menstruation. -3 days, starting the day before the start of the first day of menstruation. This phenomenon occurs in most women, so it can be said as a disorder. Patterns to overcome these disorders are carried out both pharmacologically and non-pharmacologically. This study aims to determine the effectiveness of dark chocolate given to sufferers of menstrual pain during a certain observation period in overcoming symptoms of dysmenorrhea. This study uses a quantitative approach with the Quasi Experiment method on a population of junior high school students. By involving 36 respondents who were divided into two sample groups according to Fereder's formula, each of which was determined as many as 18 respondents. One group received treatment consuming dark chocolate, and the other group was a control group without treatment. The experimental process was carried out for a span of 30 days for each respondent which was adjusted to the period of dysmenorrhea. All respondents (100%) felt "moderate" pain before consuming dark chocolate, and after consuming dark chocolate 27.8% experienced mild pain and 72.2% did not feel pain anymore. The study concluded that the experimental group showed a reduction in pain of 72%, no longer felt pain, and 28% still felt a little pain. Meanwhile, the control/intervention group did not show any change in the pain scale. This means that consuming dark chocolate can reduce the pain of dysmenorrhea. At the end of the observation, the results of the statistical test showed that in the experimental group the p-value (0.000) <0.05, which means the hypothesis (Ha ) is accepted. Meanwhile, in the control group, the p value (1.000) > 0.05, which means that the hypothesis (Ha ) is rejected. There is an effect of dark chocolate consumption on reducing dysmenorrhea pain, and there is a difference in pain between groups that consume and those who do not consume dark chocolate.

Keywords : Dark Chocolate, Dysmenorrhea Pain, Junior High School Student