For the women who suffer with PCOS:

Conclusion

In conclusion, herein we reported the possible association between ketogenic diet and improvement in reproductive hormone levels in women with PCOS via meta-analysis of the available and usable studies. The accessible literature still has several limitations necessitating careful review, reducing the applicability and transferability of these results to the general PCOS population. However, these findings have important clinical implications, especially for endocrinologists, gynecologists, and dieticians, who should carefully plan and customize individual diet recommendations for women with PCOS.

https://academic.oup.com/jes/article/7/10/bvad112/7259972?login=false