Get your energy back by fixing the gut-hormone connection most doctors miss.
Everything — your mood, your cycle, your metabolism, your skin — traces back to what's happening in your gut. Start the 90-Day Gut-Hormone Reset and actually fix the root cause.
15% off with code WITHIN15
"All disease begins in the gut. Fix your gut, and you'll fix your hormones, mood, weight, and metabolism."
— Kylie Ivanir, RD
Your gut and your hormones are in constant conversation — and most women are only treating one side of it.
Most women treating hormonal symptoms — PCOS, irregular cycles, perimenopause, low libido, stubborn weight — are only addressing the symptom. The root cause is a disrupted gut microbiome that can no longer properly regulate estrogen, cortisol, and thyroid hormones.
Kylie Ivanir has built her entire clinical practice around this connection. Daily Nouri built its Hormone Balance Probiotic around it, too. The 90-Day Gut-Hormone Reset is where those two worlds meet.
How your gut–hormone axis shifts over 90 days
Microbiome transformation is not linear and it is not fast. Here is what the research shows happens inside your gut — and across your hormones — when you stay consistent.
Seeding & Colonization
Probiotic strains establish themselves in the mucosal lining. Beta-glucuronidase activity begins to normalize. The gut barrier starts repairing tight junctions, reducing the "leaky" inflammation that disrupts hormone signaling.
- Reduced bloating and gas as bacterial competition stabilizes
- Early improvements in stool regularity and transit time
- Mood and sleep shifts as serotonin precursor production changes
- Cortisol rhythms begin to normalize as gut–brain signals improve
Estrobolome Recalibration
Estrobolome bacteria reach functional density. Estrogen metabolism pathways shift — more conjugated estrogen is properly excreted rather than reabsorbed. SCFA production increases, improving insulin sensitivity and reducing inflammatory signaling.
- Measurable reduction in PMS severity for most women
- Clearer skin as circulating estrogen levels stabilize
- More consistent energy across the cycle phases
- Reduced mid-cycle and luteal phase bloating
Systemic Hormone Balance
By day 90, microbiome diversity is measurably higher. The estrobolome is producing beta-glucuronidase at healthy levels. The cumulative effect reaches systemic hormonal regulation — the shift most women describe as "finally feeling like myself."
- Cycle regularity and length normalization
- Sustained metabolic improvements: appetite, stable weight
- Progesterone–estrogen balance reflected in mood and cycle
- Thyroid conversion improves as gut inflammation resolves
15% off with code WITHIN15 · Kylie's exclusive offer
The gut–hormone axis
Three pathways your gut uses to regulate your hormones — and what breaks down when it's disrupted.
The Estrobolome
A specialized community of gut bacteria that metabolize and recirculate estrogen. When dysbiotic, excess estrogen recirculates — driving PCOS, fibroids, heavy periods, and PMS. When balanced, estrogen exits properly.
The Gut–Brain Axis
95% of your serotonin is made in the gut. Gut bacteria directly regulate cortisol, dopamine, and your HPA axis. Dysbiosis drives elevated stress hormones, mood swings, and disrupted sleep — even before the adrenals are involved.
Metabolic Signaling
Beneficial gut bacteria produce short-chain fatty acids (SCFAs) that regulate insulin sensitivity and appetite hormones like GLP-1 and leptin. Low SCFA production equals metabolic dysfunction — and it starts in the gut.
The breakthrough your doctor hasn't told you about
The estrobolome is the collection of gut bacteria responsible for metabolizing estrogen. Through an enzyme called beta-glucuronidase, these bacteria determine how much estrogen gets reactivated and recirculated in your body — versus properly excreted.
When gut health is compromised — by antibiotics, stress, or poor diet — beta-glucuronidase becomes overactive. Estrogen that should be eliminated is instead reabsorbed, driving estrogen-dominance symptoms: painful periods, bloating, mood swings, PCOS, endometriosis, and weight gain around the hips and thighs.
15% off applied at checkout with WITHIN15
of your immune system lives in the gut — the same environment governing your hormone metabolism.
bacterial cells in the human body — outnumbering your own cells. Your hormones are downstream of every one.
of serotonin is produced in the gut, making it your primary mood and stress regulation organ.
Kylie Ivanir, RD
Gut & Hormone Dietitian · @within.nutrition
"All disease begins in the gut. Fix your gut, and you'll fix your hormones, mood, weight, and metabolism."
Kylie is a Registered Dietitian specializing in the gut-hormone connection, helping thousands of women resolve the root cause of hormonal symptoms — not just suppress them. Her clinical approach integrates functional nutrition, microbiome science, and real-food strategies.
After seeing patient after patient prescribed hormonal birth control for PCOS, heavy periods, and mood disorders without addressing gut health, Kylie built her practice — and her content — around closing that gap.
90 days to actually fix
your hormones.
Not manage symptoms. Not mask them with birth control. Actually fix the microbiome environment driving them — so your body can regulate estrogen, cortisol, and metabolism the way it was designed to.
15% off · code WITHIN15 applied at checkout
What to eat (and avoid) to protect your estrobolome
Food is information for your gut bacteria. Here's how to feed the ones that keep your hormones in check.
Eat More of These
These feed beneficial estrobolome bacteria, lower beta-glucuronidase activity, and support estrogen clearance.
- Cruciferous vegetables — broccoli, Brussels sprouts, cauliflower (DIM + fiber)
- Fermented foods — sauerkraut, kimchi, kefir, plain yogurt
- Ground flaxseed — lignans that modulate estrogen metabolism
- Leafy greens — magnesium for cortisol regulation and liver support
- Colorful berries — polyphenols that feed Akkermansia and Lactobacillus
- Legumes & lentils — prebiotic fiber that fuels SCFA production
- Walnuts & Brazil nuts — selenium for thyroid + omega-3s
- Turmeric, ginger, rosemary — anti-inflammatory and gut-protective
Minimize or Eliminate
These disrupt the microbiome, increase intestinal permeability, and drive estrogen-dominance patterns.
- Ultra-processed foods — emulsifiers and additives destroy the mucosal lining
- Refined sugar — feeds pathogenic bacteria and promotes inflammation
- Conventional meat & dairy — exogenous hormones and antibiotics
- Alcohol — damages gut lining and impairs liver estrogen clearance
- Seed oils — high omega-6 content drives inflammatory signaling
- Gluten (if sensitive) — can trigger zonulin release and permeability
- Pesticide-heavy produce — glyphosate is a known microbiome disruptor
- Artificial sweeteners — alter gut bacterial composition within days
Lifestyle Levers
Your daily habits directly shape microbiome composition and hormonal output — for better or worse.
- Stress management — chronic cortisol suppresses progesterone and flora
- 7–9 hours of sleep — growth hormone, melatonin, and gut repair
- Moderate movement — exercise raises microbiome diversity up to 40%
- Morning light exposure — anchors cortisol and circadian rhythm
- Reduce plastic exposure — BPA and phthalates are xenoestrogens
- Seed cycling — aligns lignans and zinc with cycle phases
When Food Isn't Enough
Even with an excellent diet, targeted probiotic strains provide what food alone cannot: direct estrobolome modulation at a clinical level.
- Lactobacillus acidophilus — modulates beta-glucuronidase, supports vaginal flora
- Lactobacillus rhamnosus — reduces cortisol, supports HPA axis regulation
- Bifidobacterium longum — lowers inflammatory cytokines, improves gut barrier
- Lactobacillus reuteri — boosts oxytocin, supports metabolic hormone signaling
- Daily Nouri Hormone Balance — 7 clinically studied strains for this pathway
How to structure your 90-day reset
A daily framework you can start today. Simple, consistent, and built on the same gut-hormone science behind the formula.
Morning: Anchor cortisol
Get outside within 30 minutes of waking. Delay coffee 90 minutes post-wake. Eat a high-protein breakfast (30–40g) to stabilize blood sugar and prevent the cortisol crash that disrupts progesterone throughout the day.
Daily: Feed your estrobolome
Aim for 30g of fiber per day minimum. Prioritize cruciferous vegetables, ground flaxseed, and fermented foods. Variety in plant foods — 30 different plants per week — is the single strongest predictor of microbiome diversity.
Daily: Your probiotic foundation
Take your Hormone Balance Probiotic consistently — with or without food. Consistency for 90 days is where the real shift happens. The strains need time to colonize and modulate the estrobolome environment.
Evening: Protect the repair window
Stop eating 2–3 hours before bed. Dim lights after 8pm. Aim for 7–9 hours — when your gut repairs its lining, your liver processes estrogen metabolites, and growth hormone resets metabolic function.
Track: Log your cycle and symptoms
Note your energy, mood, bloating, and cycle regularity week over week. Most women notice digestive changes in weeks 2–4, and hormonal shifts — calmer PMS, more regular cycles, better skin — by months 2–3.
It's time to get to the root
of your hormone health.
Start with the root. Daily Nouri's Hormone Balance Probiotic was formulated specifically around the estrobolome — the pathway your symptoms are pointing to. 90 days. Real results.
Recommended by Kylie Ivanir, RD · code WITHIN15 at checkout