Introduction. This study investigated the nutritional value and antioxidant capacity of & Ccedil;& imath;ntar mushrooms cultivated in Mu & gbreve;la, providing data intended to enhance the current literature on mushrooms with significant dietary benefits for human health.Materials and methods. & Ccedil;& imath;ntar mushrooms, which hold significant nutritional value for human diets, were sourced from T & uuml;rkiyeand physicochemical and antioxidant properties ofthe ten & Ccedil;& imath;ntar mushrooms samples were analyzed.Result and discussion.The findings obtained were evaluated in terms of nutritional composition, functional properties, and antioxidant capacity of these mushrooms. The dry matter, moisture, ash, titratable acid, pH, total carbohydrate and protein contents of the & Ccedil;& imath;ntar mushroom samples were determined in the range of 6.381-17.920%, 82.079-93.618%, 0.264-0.821%, 0.334-1.015%, 6.58-7.41, 0.062-1.066%, 3.125-5.694%, respectively. Among the antioxidant capacityproperties, the total phenolic content was determined to range between 0.0017-0.0029 mg GAE/g, FRAP values were between 3.854-8.267 mu mol Trolox/g, and TEAC values ranged from 0.0014-0.0146 mu mol Trolox/g. Upon examining the obtained results, it is expectedthat the samples with the highest total phenolic compound content would also exhibit the highest antioxidant capacities in the FRAP and TEAC analyses. However, the results do not support this theory. It is hypothesized that the differences in the antioxidant capacities of the samples may be attributed to the reduction of different compounds. The compositions of the fungi depend on the type of fungus, growing conditions, chemical and physical characteristics of the growing medium, developmental stage, and location. Additionally, to accurately determine their antioxidant capacities and the specific compounds they can reduce, various capacity analyses should also be conducted.Conclusions. More research on these mushrooms is needed in T & uuml;rkiye, a country abundant in wild mushrooms, to better understand these variations.