Seed cycling, in one breath.
Eat flax and pumpkin seeds in the first half of your cycle, and sesame and sunflower seeds in the second half. That is the whole idea. Here is the slightly longer version.
The two phases
A menstrual cycle has two halves. The follicular phase runs from the first day of your period to ovulation, around day 14 in a 28-day cycle. The luteal phase runs from ovulation until your next period.
Seed cycling pairs two seeds with each half. Moonsown calls them Phase 1 and Phase 2 and gives each its own colour, so you never have to remember which is which.
Flax + Pumpkin
From the first day of your period. Or, on the moon method, from the new moon.
Sesame + Sunflower
From ovulation, or around the middle of your cycle. Or from the full moon.
The four seeds
Flax
Small, glossy and nutty. Best eaten ground.
Pumpkin
Green pepitas with a soft, buttery bite.
Sesame
Tiny and toasty. Contains a major allergen.
Sunflower
Mild kernels with a gentle crunch.
How much, and how
- Start on day 1, the first day of your period, with the Phase 1 Blend.
- One scoop a day: two level tablespoons, about 15 to 17 g, stirred into food you already eat.
- Switch to the Phase 2 Blend at ovulation, or around the middle of your cycle, until your next period starts. Then begin again.
Cycle shorter or longer than 28 days? That is normal. Use the switch point that fits your own cycle. Each blend pouch holds 14 days plus a little extra.
No regular cycle? Follow the moon.
The moon takes about 29.5 days to go from new to full and back, close to a typical cycle. If your periods are irregular, paused or absent, some people use it as the clock: Phase 1 from the new moon, Phase 2 from the full moon.
What the research says
Seed cycling is popular, but there is very little research on the practice itself. A 2025 systematic review gathered ten small studies on seed cycling and its seeds and found they may have benefits for menstrual symptoms, while calling for larger, better trials. Other summaries, such as Healthline's, describe the evidence for seed cycling as lacking or weak.
So here is our position, plainly. The seeds are simple, whole foods. Many people enjoy the routine and the structure it gives their month. We do not claim that seed cycling balances hormones or treats any condition, and you should be wary of anyone who does.
Further reading: the Wikipedia overview of seed cycling (with references) and Healthline's evidence summary.
If you are pregnant, breastfeeding, managing a health condition or taking medication, talk to your doctor before changing your diet. Moonsown is food, not medicine.
Questions
How much do I eat each day?
One scoop, which is two level tablespoons (about 15 to 17 g), of the blend for your phase. Stir it into yogurt, oatmeal, smoothies, salads or anything you like. Each blend pouch holds 14 days, with a little extra.
My cycle is not 28 days. What do I do?
Use 28 days as a guide, not a rule. Switch to Phase 2 at ovulation if you track it, or around the middle of your cycle if you do not, and go back to Phase 1 when your next period starts.
I do not have a regular cycle. Can I still seed cycle?
Yes. Some people follow the moon instead: Phase 1 from the new moon, Phase 2 from the full moon. Our site shows where the moon is today. See the moon method.
Are the seeds ground?
The two blends are ground, so they are ready to sprinkle. The single seeds come whole, for people who like to grind their own fresh.
Do your products contain allergens?
Yes: the Phase 2 Blend, the Cycle Kit and our Sesame contain sesame. All our seeds are packed in the same place, so we do not recommend any Moonsown product for anyone with a sesame allergy.
Where do you ship?
Within the United States for now. Shipping is free on orders over $30 and on every Cycle Kit; otherwise it is $5.95. Shipping and returns.
