Background: Metabolic Syndrome (MetS) predisposes the human body to a variety of chronic diseases. Objectives: This study, for the first time, aimed to assess the effects of Fermented Camel Milk (FCM), a functional dairy food, on the obesity measures and blood pressure of adolescents with MetS. Methods: This was a crossover, randomized, double-blind trial. We enrolled overweight or obese adolescents, aged 11-18 years, meeting the diagnostic criteria for MetS. We randomly assigned the study participants to receive FCM 250 mL per day for 8 weeks, followed by a 4-week washout, then, consuming Diluted Cow Yogurt (DCY) 250 mL per day for 8 weeks, or the reverse sequence. General and abdominal obesity measures consisting of weight, Body Mass Index (BMI), BMI z-score, Waist Circumference (WC), Hip Circumference (HC), waist to height ratio and Systolic and Diastolic Blood Pressure (SBP, DBP) were measured before and after each of the 4 periods. A three-day food record and physical activity questionnaire were completed before each period. Statistical analyses were performed using Minitab and SPSS considering the significance level of 0. 05. Results: Twenty-four participants with the Mean± SD age of 13. 77± 1. 87 years (age range: 10. 45-16. 25 years) (58% girls) completed the study. It resulted in nonsignificant mean changes (increase or decrease) in weight of-0. 67 kg (95%CI:-1. 97; 0. 61; P=0. 28), BMI (-0. 10 kg/m2, 95%CI:-0. 65; 0. 45; P=0. 70), BMI z-score of-0. 06 (95%CI:-0. 33; 0. 19; P=0. 59), WC of-1. 10 cm (95%CI:-3. 22; 1. 01; P=0. 29), and HC of-0. 12 cm (95%CI:-2. 04; 1. 79; P=0. 89) by FCM consumption in comparison to DCY. The study also resulted in non-significant mean reduction in DBP of-4. 45 mm Hg (95%CI:-10. 04; 1. 12; P=0. 11). Conclusions: According to some positive impacts of FCM on obesity measures and blood pressure, we suggest conducting further studies to validate the clinical impacts of fermented camel milk.