Among those who applied to the clinic, those who do not want to follow their diet will be randomized into this group.

Among those who applied to the clinic, those who do not want to follow their diet will be randomized into this group. Patients in this group will receive 20 g/day Cornelian Cherry powder.

Among those who applied to the clinic, those who want to follow their diet will be randomized into this group. Patients in this group will be followed by a personalized diet.

Among those who applied to the clinic, those who want to follow their diet will be randomized into this group. Patients in this group will be followed by a personalized diet and will receive 20 g/day Cornelian Cherry powder for their one portion fruit a day.

Patients in "Cornelian Cherry Group" and "Cornelian Cherry and Diet Group" will receive 20 g/day freeze-dried powder Cornelian Cherry supplement.

The fasting blood glucose (mg/dl) at the baseline and 12 weeks later will be taken noted from the routinely requested tests in the hospital. These values will be recorded for all groups; Control Group, the Diet Group (who received a diet for 3 months), Cornelian Cherry and Diet Group (who received additional 20 g/day of dried powdered Cornelian Cherry with their diet), Cornelian Cherry Group (who was given only 20 g/day of dried powdered Cornelian Cherry ).

The fasting insulin (mU/L) values of the women with insulin resistance at the baseline and 12 weeks later will be taken noted from the routinely requested tests in the hospital. These values will be recorded for all groups; Control Group, the Diet Group (who received a diet for 3 months), Cornelian Cherry and Diet Group (who received additional 20 g/day of dried powdered Cornelian Cherry with their diet), Cornelian Cherry Group (who was given only 20 g/day of dried powdered Cornelian Cherry ).

The fasting blood glucose (mg/dl) and fasting insulin (mU/L) values of the women with insulin resistance at the baseline and 12 weeks later will be taken noted from the routinely requested tests in the hospital. HOMA-IR will be calculated with the formula (fasting glucose (mg/dl) x fasting insulin (mU/L)) / 405. These values will be recorded for all groups; Control Group, the Diet Group (who received a diet for 3 months), Cornelian Cherry and Diet Group (who received additional 20 g/day of dried powdered Cornelian Cherry with their diet), Cornelian Cherry Group (who was given only 20 g/day of dried powdered Cornelian Cherry ).

The body weight (kg) and height (m) of the women with insulin resistance at the baseline, 4 weeks, 8 weeks and 12 weeks will be taken by the researcher and noted in their files.

The height of the patients will be measured with a fixed height meter with 0.5 cm intervals, with shoes off.

For body analysis, an 8-electrode bioelectrical impedance (BIA) device Tanita MC 780 MA, which performs segmental analysis, will be used. Patients will be asked to remove all metal items (rings, earrings, bracelets, watches, phones, etc.), any heavy clothing, shoes, and socks before stepping on the device. The device is set to -1.0 kg for the remaining clothes.

From these measurements, body weight, body fat (kg), body fat percentage (%), body muscle (kg) and body water (kg) values will be recorded. Body mass index (BMI) will be calculated as weight (kg) divided by height (m) squared.