Seed Cycling: A Wise Practice for Happy Hormones

What is seed cycling?

It’s the health practice of adding certain seeds and essential fatty acids to your diet with the aim to help your endocrine (hormone) system to find more balance.

Lignans in seeds have gentle phytohormone activity, which can help to mediate proper estrogen production and detoxification.  Seeds are also an excellent source of essential fats, vitamins and minerals--like zinc and selenium, which your body utilizes to produce healthy hormones.

During the first half of your menstrual cycle (days 1-14 or until ovulation), flax seeds and pumpkin seeds are used daily to help support healthy estrogen synthesis. The essential fatty acid during the first part of the menstrual cycle known as the follicular phase is fish oil with EPA and DHA.

During the second half of your cycle (days 15-28), sunflower and sesame seeds are used daily alongside fish oil and evening primrose oil/GLA to support progesterone and estrogen balance during the luteal phase of the menstrual cycle.

In general, most people start to notice positive changes after 3-4 cycles of seed cycling. 

To discuss seed cycling, dosing, specific how-to and why we recommend organic seeds, be sure to book an appointment with Dr. Erin Rhae Biller, ND, by visiting, or emailing us at

Repost by Erin Rhae Biller, ND, a licensed naturopathic doctor, at Nature & Science Medicine.