Seed Cycling Chart: Which Seeds, Which Phase, How Much

The seed cycling chart by cycle phase, flaxseed and pumpkin seed for the follicular phase, sesame and sunflower for the luteal phase, with exact amounts and preparation notes.

Seed cycling protocol: Days 1 through ovulation (follicular phase), 1 tablespoon ground flaxseed plus 1 tablespoon raw pumpkin seed daily. Ovulation through end of cycle (luteal phase), 1 tablespoon ground sesame seed plus 1 tablespoon raw sunflower seed daily. Seeds must be freshly ground for flax and sesame; raw and unroasted for pumpkin and sunflower. If your cycle is irregular and you do not know when ovulation occurs, track using LH strips or basal body temperature to find the phase transition.

The Seed Cycling Chart

Phase	Days (typical 28-day cycle)	Seeds	Amount per day	Preparation
Follicular	Day 1 to ovulation (~Day 14)	Flaxseed	1 tablespoon	Freshly ground
Follicular	Day 1 to ovulation (~Day 14)	Pumpkin seed	1 tablespoon	Raw, unsalted
Luteal	Ovulation to end of cycle	Sesame seed	1 tablespoon	Freshly ground or tahini
Luteal	Ovulation to end of cycle	Sunflower seed	1 tablespoon	Raw, unsalted

Daily total: 2 tablespoons per day (mixed or separate), per phase.

Phase 1: Follicular Phase Seeds

Flaxseed (1 tbsp/day, ground)

What it contains: Omega-3 ALA, fiber, lignans (secoisolariciresinol diglucoside/SDG)

Why this phase: Flaxseed lignans are converted in the gut to enterolignans, which can modulate estrogen receptor activity. In the follicular phase when estrogen is rising, the proposed effect is supporting favorable estrogen metabolism. Flaxseed is also high in fiber, which supports estrogen excretion through the gut.

Preparation critical point: Whole flaxseeds pass through the digestive tract largely intact. You must grind them. The hull prevents absorption of the active compounds. Grind fresh daily in a coffee grinder. Do not buy pre-ground flaxseed meal; it oxidizes quickly.

Ideas: Stir into oatmeal, blend into smoothies, mix into Greek yogurt, add to overnight oats.

Pumpkin seed (1 tbsp/day, raw)

What it contains: Zinc (high), magnesium, iron, omega-6 fatty acids, protein

Why this phase: Zinc supports follicle development and is critical for the corpus luteum that forms at ovulation. The follicular phase is when the follicle is developing. Zinc availability during this period may support better corpus luteum function and thus better progesterone production after ovulation.

Preparation note: Buy raw, unsalted pumpkin seeds. Roasting degrades the fatty acids and some heat-sensitive compounds. Pepitas (hulled pumpkin seeds) are easier to eat than whole seeds.

Ideas: Add to salads, eat as a snack, blend into pesto, sprinkle on grain bowls.

Phase 2: Luteal Phase Seeds

Sesame seed (1 tbsp/day, ground or as tahini)

What it contains: Lignans (sesamin, sesamolin), calcium, iron, zinc

Why this phase: Sesame seed lignans have a slightly different receptor profile than flaxseed lignans and are proposed to support progesterone-phase hormonal balance. Sesame is also the highest calcium-containing plant seed, and adequate calcium intake is associated with reduced PMS severity.

Preparation note: Like flaxseed, sesame seeds are better absorbed when ground. Tahini (ground sesame paste) works well as an alternative. Use 1 tablespoon. Black sesame seeds have higher antioxidant content than white; either works.

Ideas: Tahini in smoothies, dressings, or eaten off a spoon. Ground sesame on rice bowls, mixed into yogurt.

Sunflower seed (1 tbsp/day, raw)

What it contains: Vitamin E (high), selenium, magnesium, linoleic acid (omega-6)

Why this phase: Vitamin E is an antioxidant that may support corpus luteum function and has modest trial evidence for PMS symptom reduction. Selenium supports thyroid function, which affects progesterone metabolism.

Preparation note: Raw and unsalted. Roasted sunflower seeds are fine for snacking but high-heat roasting degrades vitamin E.

Ideas: Trail mix, added to granola, sprinkled on salads or soups.

For Irregular Cycles

If your cycles are irregular, you cannot rely on Day 1 and Day 14 as phase markers. Options:

Use LH strips: Test daily starting around Day 8 to 10. The surge day is your switch point from follicular to luteal seeds.
Use BBT charting: A sustained temperature rise of 0.2 degrees C or more confirms ovulation occurred. Switch seeds the day the temperature rises.
Use moon cycling as a proxy: Conventionally, start follicular seeds at the new moon and switch at the full moon. There is no scientific basis for this. It is a rhythm placeholder for people who want a cycle structure without tracking.
Use a fixed 14-day split: Eat follicular seeds for the first half of your expected cycle length, then switch. Less accurate but still provides phase differentiation.

How to Know If It's Working

Track these markers across 3 or more cycles:

PMS symptom severity (especially mood, breast tenderness, bloating), looking for reduction
Period heaviness and clotting, looking for reduction
Cycle length, looking for regularization if cycles are irregular
Luteal phase length, looking for lengthening if it was short

Most practitioners report that 3 months is the minimum evaluation period. Changes in cycle characteristics happen gradually as nutritional status improves and hormonal patterns shift.

Definitions

Follicular phase: The first half of the menstrual cycle, from the start of menstruation through ovulation. Estrogen rises progressively during this phase, driving follicle development and endometrial rebuilding. The follicular phase length varies between people and cycles; the luteal phase is more consistent.
Luteal phase: The second half of the menstrual cycle, from ovulation through the start of the next menstruation. Progesterone dominates this phase, produced by the corpus luteum. A healthy luteal phase is 12 to 14 days.

Quick answers to the obvious questions.

When do I switch seeds in seed cycling?

Switch from follicular phase seeds (flax plus pumpkin) to luteal phase seeds (sesame plus sunflower) at ovulation. If you do not track ovulation, the conventional default is to switch at cycle midpoint (Day 14 in a 28-day cycle). For accuracy, tracking ovulation with LH strips or basal body temperature gives you the actual switch point, which varies between people and cycles.

How do I grind flaxseed for seed cycling?

Use a coffee or spice grinder to grind flaxseed fresh just before eating. Pre-ground flaxseed oxidizes quickly and loses potency. Grind only what you need for the day. Store whole flaxseeds in a sealed container in the refrigerator or freezer for longer shelf life. Ground flaxseed can be added to smoothies, oatmeal, yogurt, or eaten plain.

Can I do seed cycling with an irregular period?

Yes, with modification. Without a predictable cycle, you cannot rely on calendar day to determine phase. Use LH test strips to detect your ovulation surge (switch to luteal seeds the day of the surge), or use basal body temperature to confirm the phase transition retrospectively. Alternatively, cycle with the moon as a rough proxy (new moon as Day 1). This has no scientific basis but provides a rhythm for people who do not track closely.

How long before seed cycling shows results?

Most practitioners suggest committing to at least 3 months (3 full cycles) before evaluating results. Hormonal changes from nutritional interventions typically require multiple cycles to appear. Track symptoms by cycle phase to assess improvement, particularly PMS severity, period heaviness, and breast tenderness.