IRCT20200106046022N1 IRCT 2020-04-08 Esfahan University of Medical Sciences Effects of sumac on metabolic syndrome Effects of Rhus Coriaria(Sumac) supplementation on indicators of metabolic syndrome in adult with metabolic syndrome 2020-02-04 anticipated 40 Complete https://irct.ir/trial/44835 interventional Randomization: Randomized, Blinding: Triple blinded, Placebo: Used, Assignment: Crossover, Purpose: Treatment, Randomization description: Participants will be divided into two groups A and B by the random blocking method with a 1: 1 allocation ratio. The preparation of sumac and placebo capsules with codes A and B will be determined by a person not involved in sampling and data collection and analysis and researchers don't know how to distribute it. In each intervention period, group A will be given code A capsules and group B will be given code B capsules, Blinding description: In this study, Sumac and Lactosehr II will be replaced in single-color and uniform 500 mg capsules. Participants, researchers and statisticians will not be aware of the type of capsules. 2 metabolic syndrom. Intervention 1: Intervention group: 500 mg capsules of sumac daily, two with food for 6 weeks in the first period of the intervention. In the second period of the intervention of this group, they are in the control group. The capsules are filled with sumac powder powdered by the researcher due to the reduction of counterfeits. Intervention 2: Control group: Lactose 500 mg capsules daily with food for 6 weeks in the first period of the intervention. In the second period of the intervention, this group is in the intervention group. The capsules are filled by the researcher with lactose. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information