In normal healthy women testosterone is made by both the ovaries and the adrenal gland. The role of testosterone in women is responsible for muscle growth, bone strength and libido the same as in men. Although women normally produce only about one tenth of the testosterone men produce, women make more testosterone than estrogen.
Testosterone is made from cholesterol and estrogen is made from testosterone so there has to be enough cholesterol in the blood for the body to convert cholesterol into testosterone.
You can help your body to make enough testosterone by including vegetables, legumes, coffee, wine, beer or cider in your diet as well as regular exercise to include resistance training. Vitamin D maintained at optimal blood level through a blood test as well as Zinc and Magnesium all contribute to free testosterone in both men and women. http://Zamir A, Ben-Zeev T, Hoffman JR. Manipulation of Dietary Intake on Changes in Circulating Testosterone Concentrations. Nutrients. 2021; 13(10):3375. https://doi.org/10.3390/nu13103375