The present study aimed to evaluate the effects of Ramadan fasting on the level of sex hormones in girls between 9-13 years before age at menarche. This study was conducted on a sample of 58 subjects (age range: 9-13 years). who were divided intotwo groups of fasting (N=31) and non-fasting (N=27). The levels of follicle-stimulating hormone(FSH). https://lecoureures.shop/product-category/ski-de-fond-accessoires-fixations-skate/