Cycle Science
The Research Behind Cycle Science
At Nourish Cycles, we build every batch of real whole food ingredient protein snack balls around what the research actually says about supporting your body through each phase, not just what's trending. Here are three studies we return to often, summarized honestly, with a link to the full study so you can read it yourself.
Systematic Review · 28 Studies
What Nutrients Actually Help With Cycle Symptoms
- Vitamin D, calcium, and magnesium showed the most consistent evidence for easing menstrual cramping.
- Zinc was linked to improvements in both physical and mood-related symptoms across three separate studies.
- Curcumin, the compound found in turmeric, showed meaningful symptom reduction in two controlled studies.
What this means for you: Research suggests these nutrients may help support your body through your cycle, though the reviewers were clear that doses and results still vary person to person. This is exactly why we formulate around real, whole-food ingredients instead of guessing.
Brown et al., 2023 · Nutrition Research Reviews
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Clinical Trial · Loma Linda University
Can Eating By Phase Support a More Regular Cycle?
- Researchers had participants eat flax and pumpkin seeds during the follicular phase, then switch to sunflower and sesame seeds during the luteal phase.
- This pattern, known as seed cycling, was tracked over a 3-month period for its effect on cycle regularity, cramping, and PMS symptoms.
- The trial wrapped in 2026, so full published results are still coming.
What this means for you: This is the exact philosophy behind Cycle Science: what you eat, and when, may matter as much as what you eat. We're watching this research closely because it speaks directly to why we build snacks by phase.
ClinicalTrials.gov Identifier: NCT07052500
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Meta-Analysis · 881 Women, 8 Trials
Omega-3s and Menstrual Phase Cramping
- Across 8 randomized controlled trials involving 881 women with dysmenorrhea, omega-3 supplementation showed a large, consistent reduction in menstrual pain compared to control groups.
- Daily doses of 300 to 1,800 mg of omega-3s over 2 to 3 months were well tolerated, and most women also needed less pain medication.
- Researchers note the exact mechanism is still being studied, but the pain-reducing effect held up across the majority of trials reviewed.
What this means for you: This is one of the more consistently supported connections between food and cycle symptoms we've found. It's part of why we treat phase-specific nutrition as more than a trend, omega-3s during your period are one of the better-studied examples of nutrition supporting how you feel.
Snipe et al., 2024 · Nutrition & Dietetics
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Controlled Trial · 90 Women With PCOS
Seed Cycling and Hormone Markers in PCOS
- In a 90-day controlled trial, women with PCOS who followed a seed cycling pattern, flaxseed and pumpkin seeds during the follicular phase, sunflower and sesame seeds during the luteal phase, saw measurable drops in FSH and LH compared to women who received no intervention.
- Ovarian ultrasounds after treatment showed fewer cysts and a return to normal ovarian size in the seed cycling group.
- The seed cycling group also saw a reduction in body weight over the 90 days.
What this means for you: This is the closest real clinical evidence we've found for the phase-based eating pattern behind Cycle Science. This trial studied women with PCOS specifically, not the general population, so we treat it as a promising signal, not a guarantee, and we'll keep watching as more research comes in.
Rasheed et al., 2023 · Food Science & Nutrition
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