This study aimed to identify the timing and the effects of 12-week Zumba lessons on some anthropometric parameters among women and men. 21 candidates (11) women mean age =53.72 Y, (10) men mean age = 48.63 participated in a 12-weeks Zumba lessons (1 hour, 3 times per week). A pre-test was done before the lessons, followed by during (after 4 w - after 8w) and followed by a post-test assessment (after 12 weeks). All variables were analyzed by Body Composition analyzer TANITA BC- 780 A. Analysis was done using Wilcoxon Test. The results showed significant level of improvement (p < 0.05) after 12 weeks Zumba lessons in some anthropometric parameters among women except (Muscle mass - BMR), while There were statistically significant differences in all anthropometric parameters of men. Besides, there were no statistically significant differences in all anthropometric variables among men between pre-test, 4 weeks post-Zumba Lessons (4 w PZL) and 8 weeks post-Zumba Lessons (8 w PZL). Also, there were no statistically significant differences in all anthropometric variables among women between pre-test and 4 w PZL, but after 8 w PZL there was the significant differences in body weight. Our studyclearly indicated that Zumba lessons have an effect on healthy people, not just obese people. Moreover, the Zumba lessons show their effectiveness in reducing the percentage of total body weight, body fat, and body mass index for women within 8 weeks, while in men, their effectiveness shows clearly after 12 weeks on all Anthropometric Parameters.