Eating Well with PCOS

Menstrual Nutrition with PCOS: A Dietitian’s Guide to Feeling Your Best All Month Long


If you’re reading this, chances are you’re dealing with PCOS (Polycystic Ovary Syndrome) and wondering how in the world nutrition fits into your hormonal puzzle — especially during your menstrual cycle. First of all, huge hugs! You are NOT alone. PCOS affects up to 1 in 10 women of reproductive age (CDC, 2023), and while it can feel overwhelming, the beautiful truth is that what you eat can seriously empower you.

Today, I’m breaking down:

  • What PCOS actually is (without the boring textbook vibes)

  • How nutrition affects PCOS and your cycle

  • What to eat during each menstrual phase

  • How to naturally reduce painful cramping (goodbye, heating pads!)

Let's get cozy, grab an iced matcha, and chat like girlfriends who also happen to LOVE science. 🩷

First Things First: What is PCOS?

PCOS is a hormonal disorder where your ovaries produce an abnormal amount of androgens (male hormones like testosterone). It’s associated with:

  • Irregular periods or no periods

  • Cysts on the ovaries (although not always!)

  • Insulin resistance (your body has a harder time using insulin, leading to higher blood sugar)

  • Weight gain, acne, hair thinning, and even mood changes

Researchers believe it’s a mix of genetics + environment (Teede et al., 2018). It’s not your fault, and more importantly — it’s manageable. Nutrition plays a HUGE role in how you feel day-to-day. 🌟

How Nutrition Affects PCOS (and Your Cycle)

Let’s talk basics:

  • Blood Sugar Balance: With PCOS, your body often struggles with insulin. Keeping blood sugar steady can reduce androgen production and inflammation (Moran et al., 2013).

  • Hormone Health: Certain nutrients like magnesium, zinc, and B vitamins help regulate ovulation and ease PMS symptoms (Mansour et al., 2020).

  • Inflammation: PCOS is tied to low-grade chronic inflammation (González et al., 2019). Anti-inflammatory foods can calm this and help your cycles be more regular (yes, please!).

Bottom line? Food isn’t just fuel — it’s your BFF for happier hormones.

The Menstrual Cycle with PCOS: What You Need to Know

Quick biology moment: a "normal" menstrual cycle has four phases:

  1. Menstrual Phase (your period)

  2. Follicular Phase (leading up to ovulation)

  3. Ovulation (releasing an egg)

  4. Luteal Phase (post-ovulation, when PMS shows up)

With PCOS, your cycle might be longer, irregular, or anovulatory (no egg release). That's okay! Even if you aren’t ovulating consistently, your body still responds to shifts — and we can support it with smart nutrition at every step.

What to Eat in Each Phase of Your Cycle (PCOS Edition!)

1. Menstrual Phase (Days 1–5): Nourish + Replenish

What's happening:
Your uterine lining is shedding — aka your period. Hormones like estrogen and progesterone are lowest here, so energy dips and cravings can spike.

Nutrition Focus:

  • Iron-rich foods: You’re losing blood, so boost iron to prevent fatigue.

  • Anti-inflammatory foods: Calm cramping and bloating.

Eat more:

  • Leafy greens (spinach, kale, Swiss chard)

  • Grass-fed beef, chicken thighs, or lentils

  • Beets, berries, and cherries (high in antioxidants)

  • Bone broth (so healing!)

Fun Tip:
Pair iron-rich foods with vitamin C (like oranges or bell peppers) to boost absorption!

Supplements to consider:

  • Magnesium glycinate for muscle relaxation

  • Omega-3s (fish oil) to reduce period pain (Gasperi et al., 2019)

2. Follicular Phase (Days 6–14): Energize + Support Ovulation

What's happening:
Estrogen rises, you usually feel more energetic, glowy, and social. (Hello, natural flirt mode! 😉) Your body is preparing to release an egg.

Nutrition Focus:

  • Fiber + probiotics: Help balance blood sugar and estrogen.

  • Protein: Support follicle growth.

Eat more:

  • Greek yogurt, sauerkraut, kefir for gut health

  • Quinoa, chickpeas, and lentils

  • Fresh berries, apples, and carrots

  • Salmon, cod, or tofu for omega-3s

Fun Tip:
This is a great phase to try new workouts or push yourself a little more — your body recovers faster now!

3. Ovulatory Phase (Around Day 14): Glow Up Time ✨

What's happening:
Ovulation occurs! Estrogen peaks, testosterone spikes (hello, increased libido!), and luteinizing hormone surges.

Nutrition Focus:

  • Zinc and antioxidants: Protect the egg and reduce inflammation.

  • Hydration: Cervical mucus (yep, that egg-white discharge) needs water!

Eat more:

  • Oysters, pumpkin seeds, almonds (zinc heroes)

  • Asparagus, spinach, and broccoli

  • Watermelon, cucumber, and oranges

Fun Tip:
Feeling extra social? Plan date nights, big meetings, or hangouts with friends around ovulation if you can. ✨

4. Luteal Phase (Days 15–28): Calm + Comfort

What's happening:
Progesterone rises. If the egg isn’t fertilized, hormones drop — leading to PMS. This is when cravings, bloating, breast tenderness, and moodiness can hit extra hard (especially with PCOS).

Nutrition Focus:

  • Complex carbs + magnesium: Stabilize mood and blood sugar.

  • B6 vitamins: Ease PMS symptoms (Gaby, 2011).

Eat more:

  • Sweet potatoes, brown rice, oats

  • Dark chocolate (high magnesium = happiness)

  • Avocados, sunflower seeds

  • Turkey (high in tryptophan, boosts serotonin)

Fun Tip:
Plan some gentle self-care (think cozy books, spa nights, girl movies).

How to Reduce Painful Cramping with Nutrition

Cramping sucks — but guess what? Certain foods and habits actually help!

Magnesium reduces muscle cramping (Walker et al., 2018).
Omega-3 fatty acids are anti-inflammatory and proven to ease period pain (Gasperi et al., 2019).
Ginger can decrease period pain as effectively as ibuprofen (Ozgoli et al., 2009)!
Hydration helps prevent uterine muscles from clenching too hard.

Cramp-busting meal ideas:

  • Ginger tea + oatmeal with berries and walnuts

  • Salmon bowl with quinoa and avocado

  • Dark chocolate + raspberry smoothie

  • Roasted sweet potatoes with tahini drizzle

And of course, movement matters too: gentle yoga, stretching, and walks help stimulate blood flow and ease tension. (Try yoga poses like child’s pose and cat-cow during cramps.)

Real Talk: Managing Cravings with PCOS 🍫

Yes, cravings happen. Especially in the luteal phase.

👉 Tip #1: Pair protein + healthy fats at every meal. It keeps blood sugar stable and prevents that "I need to eat an entire cake" feeling.
👉 Tip #2: No foods are "bad." Instead of restricting, upgrade your cravings — like baking almond flour brownies instead of store-bought cookies.
👉 Tip #3: Enjoy the chocolate! Dark chocolate (70%+) is high in magnesium and flavonoids that support happy moods and hormonal health.

Craving-friendly snacks:

  • Greek yogurt + honey + granola

  • Dark chocolate squares + almonds

  • Protein pancakes with peanut butter drizzle

  • Chia pudding with coconut milk and berries

Quick Cheat Sheet: PCOS Nutrition Must-Haves

Nutrient Why It Matters Food Sources Magnesium Eases cramps, improves insulin sensitivity Spinach, dark chocolate, almonds Zinc Regulates ovulation Pumpkin seeds, oysters, beef Omega-3s Reduces inflammation, balances hormones Salmon, walnuts, chia seeds Fiber Stabilizes blood sugar, supports estrogen detox Oats, apples, lentils Antioxidants Reduces oxidative stress in ovaries Berries, kale, matcha tea

A Few Final Notes

  • Every body is different. You might need to tweak things for your cycle, and that's 100% okay.

  • Be gentle with yourself. Healing PCOS and balancing your cycle is a journey, not a sprint.

  • Small changes matter. Even adding ONE nutrient-rich meal per day can shift your hormones over time.

You deserve to feel good in your body every day of the month.
Food isn’t about "fixing" you — it’s about fueling your magic.

And if you want a personalized plan (plus some fun meal ideas), you know I’m always here for you! 

Big hugs, lots of love, and happy hormone healing, girl!

Want more?…

FREE PRINTABLE: Your PCOS Cycle Nutrition Calendar

Hey beautiful! Here's your easy, girly, science-backed guide to what to eat during each phase of your cycle with PCOS. Print it, stick it on your fridge, or save it on your phone!

PCOS Cycle Nutrition Calendar

Menstrual Phase (Days 1–5)

Focus: Nourish + Replenish

  • Boost iron: spinach, beef, lentils

  • Anti-inflammatory foods: berries, cherries, bone broth

  • Vitamin C for iron absorption: oranges, bell peppers

  • Supplement idea: magnesium glycinate, omega-3s

Self-Care: Cozy meals, gentle stretching, warm teas

Follicular Phase (Days 6–14)

Focus: Energize + Support Ovulation

  • Gut health heroes: Greek yogurt, kefir, sauerkraut

  • Protein power: quinoa, salmon, chickpeas

  • Fresh produce: apples, carrots, berries

  • Hydrate + fiber for balanced blood sugar

Self-Care: Try new workouts, plan fun outings!

Ovulatory Phase (~Day 14)

Focus: Glow Up Time!

  • Zinc-rich foods: oysters, pumpkin seeds, almonds

  • Antioxidants: spinach, broccoli, asparagus

  • Super hydrate: watermelon, cucumber

Self-Care: Schedule dates, parties, big meetings!

Luteal Phase (Days 15–28)

Focus: Calm + Comfort

  • Complex carbs: sweet potatoes, oats, brown rice

  • Magnesium boosters: avocado, dark chocolate

  • Mood helpers: turkey, sunflower seeds

  • Support PMS with B6 foods: bananas, salmon

Self-Care: Prioritize rest, cozy nights in, gentle walks

Hormone Happy Snacks 🍫

  • Greek yogurt + berries

  • Dark chocolate + almonds

  • Chia pudding with coconut milk

  • Protein pancakes + peanut butter

Supplements To Ask Your Provider About:

  • Magnesium Glycinate

  • Omega-3 Fish Oil

  • Inositol for insulin resistance

  • Vitamin D

Remember: You are doing amazing, beautiful soul. Small changes = BIG hormone healing over time. Save this calendar, and nourish your gorgeous self every day!

Shannon Cook MS, RD, LD

Shannon Cook is the Registered Dietitian and sought-after mental peace focused, fat loss expert behind the brand, The Confidence Dietitian. She supports clients by teaching them how to eat delicious, nutrient-dense foods to build the fit, healthy body they want, without slipping back into “the diet mentality" or disordered eating habits. The Confidence Dietitian site has tons of amazing resources for you! Welcome to the ADVENTURE!

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