A novel approach to weight loss — designed for women.
For women, weight loss isn't a calorie equation. It's a hormone conversation. The Hormone & Cycle Diet syncs nutrition, training and recovery to the four phases of your cycle — so your body finally cooperates.
6 wk
Challenge
4
Cycle phases
92%
Feel better in 30d
The Hormone & Cycle Diet
A plate for every phase
The science we built this on
Most diet advice was built on male physiology.
Women aren't smaller men. We have a 28-day metabolic rhythm, distinct nutrient needs, and life stages that completely re-write the rules — postpartum, perimenopause, menopause. Ignoring that is why most diets fail us.
Your hormones swing every week
Estrogen peaks at ovulation. Progesterone dominates the luteal phase. Each shift changes how you metabolize carbs, store water and crave food.
Up to 2 kg of cyclical water
Progesterone causes natural water retention in your luteal phase. The scale moves up — your body fat doesn't. Reading this wrong wrecks adherence.
Aggressive deficits backfire
Cut calories too low and your body raises cortisol, suppresses ovulation and stalls thyroid output. The fastest path to fat loss is rarely the steepest.
Hormones run fat storage
Estrogen, progesterone, insulin and cortisol decide where (and whether) you store fat — calories alone don't.
Water ≠ fat
Up to 2 kg of cyclical water shifts every month. The scale lies if you're not reading it cycle-aware.
Aggressive deficits backfire
Low calories + low carb in your luteal phase spikes cortisol, suppresses ovulation and amplifies PMS.
Different nutrient needs
Iron, magnesium, B6, omega-3 and choline — the female deficiency profile that male protocols ignore.
Inflammation & gut differ
Estrogen modulates the microbiome and immune response — women's gut and inflammation patterns are unique.
Hormonal cravings are real
They're a magnesium + serotonin + blood-sugar story, not a willpower failure.
Built for every stage
Your life stage changes the protocol.
What worked for you at 25 will quietly stop working at 35, then again at 45. We re-tune your plan for the body you have now.
Cycling years
Phase-aware nutrition to stop fighting your hormones.
Postpartum
Rebuild iron, B12, DHA & ferritin before you cut anything.
Perimenopause
Higher protein, more strength, strategic carbs as estrogen swings.
Menopause
Bone density, lean mass and metabolic resilience.
Built for you if…
Your cycle is trying to tell you something.
Painful or irregular periods
Mid-cycle energy crashes
Stubborn weight that won't move
Cystic acne timed to your cycle
PMS mood swings & anxiety
Sugar & carb cravings (esp. luteal)
Trouble sleeping in the second half
Hair shedding or thinning
The four phases
One body, four seasons a month.
Estrogen, progesterone, FSH and LH rise and fall in a predictable rhythm. Your nutrition should rise and fall with them.
Days 1–5
Menstrual
Restore
Iron, B12, magnesium, gentle warming foods.
Eat more
Move · Walking, restorative yoga
Days 6–13
Follicular
Build
Light proteins, fermented foods, sprouts — estrogen rising.
Eat more
Move · Strength, HIIT, dance
Days 14–16
Ovulatory
Express
Antioxidants & cruciferous to support estrogen detox.
Eat more
Move · Heavy lifts, sprints, group classes
Days 17–28
Luteal
Soothe
Complex carbs, magnesium, B6 — calm cravings & PMS.
Eat more
Move · Pilates, hiking, easy yoga
Inside the app
Your phase, your plate, your quests.
Daily phase check-ins, meal blueprints that change with your cycle, streak-based habit design and a registered dietitian on chat — all in your pocket.
Phase tracker
Logs your cycle and adapts the plan in real time.
Cycle meals
200+ recipes auto-sorted to your current phase.
Daily quests
Tiny wins that compound — protein, walks, magnesium.
Dietitian chat
A real human who reads your data weekly.
What changes
In 6 weeks, the body answers back.
PMS symptoms
−72%
Energy by week 4
+41%
Avg fat loss (6 wk)
−4.2 kg
Sleep quality
+38%
Real food, real life
No banned foods. No 1,200-calorie martyrdom.
Just the right macros and micronutrients at the right point in your cycle. A plan that survives a Tuesday — and a luteal craving.
How the Challenge works
Six weeks. One full cycle. A new normal.
01
Map
Take the assessment, log your cycle and (optionally) run a baseline micronutrient panel.
02
Sync
A phase-by-phase meal blueprint, training plan and supplement stack — automated in the app.
03
Refine
Weekly check-ins with your dietitian adjust based on what your body is actually showing.
Our mission
To finally give women a nutrition method built for their biology — phase by phase, stage by stage, hormone by hormone.
We're a team of female dietitians, MDs and behavioral scientists who got tired of watching women blame themselves for plans that were never designed for them. Cellfie is the protocol we wish we'd had.
Research-backed
Built on the peer-reviewed evidence women were left out of.
Until 1993, women were largely excluded from clinical trials. We rebuilt our protocol on the studies that finally put women back in the data.
−47%
PMS severity with cycle-aware nutrition
Am J Clin Nutr · n=487
2.3×
Greater fat loss vs. flat-calorie diets in cycling women
J Women's Health · 2021
−31%
Sugar cravings with luteal-phase carb timing
Nutrients · 2020
+22%
Insulin sensitivity in PCOS with phase-aligned meals
Endocrine Reviews · n=212
−58%
Cortisol spikes vs. continuous deficit dieting
Psychoneuroendocrinology · 2019
+34%
Adherence at 12 weeks vs. standard meal plans
Obesity · RCT · n=304
Before & after
What changes when nutrition starts listening to your cycle.
Before
Bloated, exhausted, PMS for 10 days a month, scale up 3 kg in luteal.
After
Energy stable across the cycle, 6 kg down, period barely registers.
Léa, 34 · 12 weeks
Before
PCOS, 18 months trying to conceive, insulin resistance, 'just eat less' fatigue.
After
Cycle returned at week 9, A1c down to 5.2, pregnant in month 7.
Sara, 31 · PCOS protocol
Women, in their own words
The first plan that didn't punish them for being female.
"I stopped fighting my luteal phase. The cravings just… stopped being a battle."
"Postpartum, every other plan made me crash. This one rebuilt me before asking me to lose anything."
"Perimenopause was rewriting my body. Cellfie rewrote the plan to match."
"My period went from 8 days of misery to 4 days I barely notice."
"Down 7 kg without ever counting a single calorie. I just ate for the phase."
"First time in my life a dietitian asked about my cycle before my plate."
What's inside your plan
Every tool you need. None you don't.
Phase-by-phase meal plans
Auto-rotated to your menstrual, follicular, ovulatory, luteal phase.
Smart grocery lists
Generated weekly. Iron, magnesium, B6, omega-3 prioritized.
Cycle & symptom journal
Track period, mood, sleep, energy, cravings — see patterns appear.
Micronutrient protocol
Targeted supplement stack tuned to your phase and life stage.
Cycle-aware training
Strength when estrogen rises. Recovery when progesterone calls.
Dietitian on chat
A real woman, with credentials, who reads your week and replies.
Optional lab integration
Upload bloodwork — ferritin, thyroid, vitamin D, hs-CRP, HbA1c.
Daily quests
Tiny wins that build the plan into your life, not on top of it.
Hormone literacy library
Short, sharp lessons on the science behind every recommendation.
Join the Challenge
Pick your cycle.
Every plan includes the full app, the cycle protocol, the meal blueprints and a registered dietitian. Cancel anytime.
1 Month
Try the protocol through one full cycle.
- ✓Full app access
- ✓Phase meal plans
- ✓Daily quests
- ✓Dietitian chat
6-Week Challenge
Most popular — the full Hormone Diet Challenge.
- ✓Everything in 1 Month
- ✓6-week guided protocol
- ✓Weekly 1:1 with dietitian
- ✓Lab panel integration
- ✓Bonus: cycle cookbook
Annual
For the long game — perimenopause-ready.
- ✓Everything in Challenge
- ✓Quarterly protocol re-tune
- ✓Stage transition support
- ✓Priority dietitian access
7-day money-back guarantee · Cancel anytime · HSA/FSA eligible
FAQ
Honest answers.
Still wondering if this is for you? Take the 2-minute assessment — it'll tell you straight.
Do I need to track my cycle to start?+
Will this work if I have PCOS, endometriosis, or am on hormonal birth control?+
Is this another low-carb / keto / fasting plan?+
How fast will I see results?+
Do I have to take supplements?+
What if I'm in perimenopause or post-menopause?+
Can I cancel anytime?+
Ready when you are
Take the free 2-minute assessment.
Get your personalized scores across nutrition, workout and lifestyle — and see your high-level Hormone Diet plan, instantly.