Collagen for PCOS: Is It Worth Taking? A Nutritionist Explains

There’s been a surge of interest around collagen for PCOS in my practice. As a nutritionist who specializes in PCOS, one of the most common questions I hear is: “Should I take collagen for PCOS?”

You’ve likely seen collagen supplements touted for everything from glowing skin and luscious locks to muscle mass and joint support. But what does the research really say about collagen and PCOS? Is it just hype, or could collagen actually support hormone health?

In this article, we’ll dive into the science behind collagen for PCOS and answer questions such as what is collagen?, is collagen good for PCOS? and what is the best collagen to take for PCOS? 

We will also chat about benefits, side effects to consider, and smart ways to include collagen in your diet – without blowing your budget.

Let’s get started! 

What Is Collagen?

Collagen is the most abundant protein in the human body and it plays a role in various bodily functions, including skin elasticity, joint health, and wound healing. It provides structure and strength to your skin, bones, joints, and connective tissues.

In the beauty and wellness world, collagen is often promoted for its potential to:

Improve Skin Elasticity – Collagen plays an important role in maintaining skin elasticity and hydration. As we age, our bodies produce less collagen, leading to dry skin and the formation of wrinkles. Collagen supplements are often marketed to reduce wrinkles, increase skin elasticity, and give our skin a ‘plump’ look. 

Support Joint Health – Collagen helps maintain the integrity of cartilage, which is the tissue that protects all of our joints. Some studies suggest that collagen supplements may help improve symptoms of arthritis and reduce joint pain.

Strengthen Bones – Bones are made mostly of collagen, which gives them structure and strength. As collagen production decreases with age, bone mass deteriorates leading to osteoporosis. Collagen supplements are believed to help maintain our bone density and prevent fractures into late adulthood. 

Promote Healthy Hair and Nails – Collagen provides key amino acids (proline and glycine) that are essential building blocks for keratin, the protein that makes up our hair and nails. As collagen levels decline with age or due to stress, nutrient deficiencies, or hormonal imbalances (like in PCOS), hair can become thinner, more brittle, and slower to grow. 

But what about collagen’s impact on PCOS?

Before we answer that, let’s cover the types of collagen and how they work.

Types of Collagen and What They Do

Collagen is a  complex protein and there are over 25 different types of collagen, but the ones most relevant to PCOS and women’s health are:

Type I Collagen

• Where do we find it? Skin, bones, tendons, and ligaments.
• What does it do? This is the major workhorse collagen of the body! Type I collagen provides structure and strength to skin, bones, and connective tissues.
• Can it be supplemented? Often used in supplements for skin health, bone strength, and anti-aging.

Type II Collagen:

• Where do we find it? Cartilage
• What does it do? Provides joint support and cushioning.
• Can it be supplemented? Often used in products aimed at improving joint health and reducing symptoms of arthritis.

Type III Collagen:

• Where do we find it? Skin, muscles, and blood vessels
• What does it do? Provides structure and elasticity to organs and tissues.
• Can it be supplemented? Often included in products for skin and cardiovascular health.

Type IV Collagen:

• Where do we find it? Basement membranes (thin layer of cells that surrounds organs, muscles, and fat)
• What does it do? Creates a barrier for organs, protecting them from harmful elements. 
• Can it be supplemented? Less commonly found in supplements

Type V Collagen:

• Where do we find it? Skin, hair, eyes, and placenta
• What does it do? Works with type I collagen to support tissues and vision
• Can it be supplemented? Often included in supplements aimed at skin, hair, and eye health

What Forms Does Collagen Come In?

You can obtain collagen in a few different forms. There are some key differences between these, and it’s important to have a basic understanding of these differences:

• Hydrolyzed Collagen (collagen peptides): The body breaks down hydrolyzed collagen (also known as collagen peptides) into smaller pieces, making it easier to absorb.You’ll commonly find hydrolyzed collagen in powders, capsules, and drinks. This is the form to look for when purchasing a collagen supplement for skin, hair, and nail health.

• Undenatured Collagen: This is a less processed form of collagen that maintains its original structure. You’ll often find it in joint health supplements.

• Gelatin: Gelatin is partially hydrolyzed collagen and is commonly used in cooking and baking. It’s less bioavailable than hydrolyzed collagen, so you typically won’t achieve effective collagen supplementation through gelatin alone.

Does Collagen Have Benefits for PCOS?

Unlike some other supplements for PCOS (see my full blog post on the best supplements for PCOS), there is very little evidence to show that collagen specifically benefits PCOS. 

However, some indirect benefits might be relevant. For example, PCOS is associated with skin issues like acne. Collagen may help improve skin elasticity and hydration, potentially aiding in managing these symptoms.

Boosting Skin Health with Collagen

When you ingest collagen in the form of hydrolyzed collagen or collagen peptides, your body breaks it down into smaller amino acids and peptides.

Your body then absorbs these components into the bloodstream and uses them to support various functions—including the synthesis of new collagen in the skin.

A growing body of research is showing that hydrolyzed collagen can benefit skin hydration & skin elasticity. It can also reduce the appearance of wrinkles. 

In fact, a 2019 study found that participants who took a hydrolyzed collagen supplement for twelve weeks experienced a significant improvement in skin hydration and elasticity compared to those who took a placebo.

Collagen also helps in the regeneration of skin cells and tissues. In the context of PCOS, this can help in reducing the appearance of scars, including acne scars.

If you are looking for nutrition interventions for clear skin, check out this article: PCOS Diet Plan for Acne. 

Collagen for PCOS Hair Loss

While collagen itself is not an evidence-based direct treatment for PCOS-related hair loss, it may support hair health in several indirect ways. 

A randomized controlled trial published in 2012 found that 180 days of collagen supplementation improved hair growth in women with hair thinning. 

Collagen provides essential amino acids that are vital to produce keratin, the protein that makes up hair. Stronger hair can be less prone to breakage and thinning.

If you want to learn more about how nutrition can improve hair health in PCOS, check out this blog post: How to Combat PCOS Hair Loss. 

Collagen for Healthy Ovaries

Vitamin C is a vital ingredient for making collagen in the body, especially in the ovaries. 

Research has shown that without enough vitamin C, development of ovarian cysts occurs. Therefore, vitamin C is an important nutrient for PCOS management and prevention. 

This antioxidant is naturally found in fruits and veggies, like bell peppers, citrus fruits, strawberries and broccoli. 

Curious about eating habits that support your menstrual cycles? Check out The Ultimate Guide for Cycle Syncing Food. 

Are There Any Downsides to Taking Collagen for PCOS?

The Side Effects

Collagen is generally safe and well-tolerated. A small minority of people may experience side effects. 

The most common side effects are usually mild and include:

• Stomach issues: bloating, nausea, diarrhea, and/or stomach upset
• Allergy (especially because collagen is often derived from bovine and marine sources): rash or itching

The Cost of Collagen

Let’s be real – collagen was one of the priciest supplements on the market in 2024.

If you’re considering collagen to support your PCOS symptoms, it’s okay to pause and ask: Is this really worth the cost? 

While collagen has some promising benefits, it’s not a magic fix – and definitely not the only tool in your toolbox.

The good news? There are plenty of budget-friendly, science-backed ways to support your skin, hair, and hormones naturally – without breaking the bank!

Start with the basics:

1. A balanced diet full of whole foods. Think colorful veggies, fruit, whole grains, lean protein, and healthy fats. These foods can go a long way in improving blood sugar balance and reducing inflammation.
2. Regular movement like walking, yoga, or strength training can improve insulin sensitivity, support hormone health, and even boost your mood.
3. For PCOS acne, small diet tweaks (like cutting back on added sugar, reducing dairy if it’s a trigger, and eating anti-inflammatory foods) can make a noticeable difference. Probiotics may also help by supporting gut health.

And remember – you don’t have to figure it out alone. 

Reach out to a Registered Dietitian Nutritionist who specializes in PCOS for a personalized acne or hormone-balancing plan. And don’t hesitate to consult your doctor about medications or additional options that could support your goals.

So What Can You Do?

If you’re curious about how to give your collagen levels a gentle nudge without relying on expensive powders or pills, one of the best places to start is your plate.

Certain foods naturally support your body’s collagen production or provide the nutrients it needs to build and maintain it – think vitamin C, zinc, and protein. 

And the best part? Many of these foods also help with blood sugar balance, inflammation, and hormone support.

Here’s what a collagen-boosting day of eating might look like for someone managing PCOS. 

Collagen-Boosting Day of Eating for PCOS

This sample meal plan supports natural collagen production and includes foods that are gentle on blood sugar and hormone-supportive – perfect for someone managing PCOS.

Collagen-Boosting Berry Smoothie Bowl (No Supplement Needed)

Ingredients:

• ½ cup unsweetened almond milk
• ½ cup frozen blueberries
• ½ frozen banana
• 1 tablespoon chia seeds
• 1 tablespoon almond butter
• Handful of spinach
• 2 tablespoons plain Greek yogurt (rich in proline and glycine, key collagen-building amino acids)
• Optional toppings: pumpkin seeds, coconut flakes, sliced almonds, kiwi slices (vitamin C boost)

Why It Works:

• Greek yogurt provides glycine and proline – amino acids essential for collagen synthesis.
• Blueberries and kiwi are high in vitamin C, which supports your body’s natural collagen production.
• Chia seeds and almond butter add fiber and healthy fats for blood sugar balance.
• Spinach adds antioxidants and nutrients with minimal taste impact.

If you want more PCOS smoothie ideas check out my blog post: How to Build PCOS Smoothies That Support Your Hormones

Lunch: Collagen-Rich Chicken Salad Bowl

Ingredients:

• 3 oz roasted chicken with skin (provides natural collagen, especially type II)
• 2 cups mixed greens (arugula, spinach, romaine)
• ½ avocado (healthy fats for hormone health and skin support)
• ½ cup roasted sweet potatoes (beta-carotene → supports skin health + antioxidants)
• 1 tablespoon extra virgin olive oil + lemon juice dressing (vitamin C supports collagen synthesis)
• Sprinkle of sunflower seeds (vitamin E and selenium for skin repair and antioxidant support)

Why It Works:

• Chicken with skin is a natural source of collagen—especially type II, beneficial for joints and skin.
• Avocado and olive oil deliver healthy fats that support hormone and skin health.
• Lemon juice adds vitamin C, which is essential for collagen formation.
• Fibre-rich veggies and sweet potatoes help improve insulin sensitivity—key for PCOS.

Afternoon Snack: Warm Bone Broth & Hard-Boiled Eggs

Ingredients:

• 1 cup bone broth with a pinch of turmeric and black pepper
• 2 hard-boiled eggs sprinkled with sea salt and paprika
• Handful of whole grain cracks for complex carbohydrate boost

Why it works:

• Bone broth provides type I and III collagen + minerals.
• Eggs offer collagen-building amino acids and choline, which supports liver detox (great for hormone balance!).

Dinner: Omega-3 Salmon Stir Fry

Ingredients:

• 4 oz wild salmon with skin (rich in type I collagen + omega-3s for inflammation and skin health)
• 1 cup stir-fry vegetables: broccoli, bell peppers, carrots (high in vitamin C and antioxidants)
• 1 clove garlic + 1 tsp fresh grated ginger (anti-inflammatory and digestion-supportive)
• 1 tsp sesame oil + 1 tsp low-sodium tamari
• ½ cup cooked quinoa (complete plant-based protein + fiber)

Why it works:

• Salmon skin naturally contains collagen and supports skin elasticity and joint health.
• Colourful veggies deliver vitamin C, which helps your body build and maintain collagen.
• Ginger and garlic provide anti-inflammatory benefits, which are key for PCOS and hormone regulation.
• Quinoa + sesame oil round out the meal with fiber, healthy fats, and balanced blood sugar impact.

Optional Evening Treat: Collagen Hot Cocoa

Ingredients:

• 1 cup milk of your chice
• 1 tsp raw cacao powder (rich in polyphenols that protect collagen from breakdown)
• 1 tsp tahini or sunflower seed butter (natural source of amino acids + healthy fats)
• Dash of cinnamon
• Sweeten with stevia or a drizzle of maple syrup

Why it works:

• Cozy and soothing! This warming drink doesn’t use added collagen but includes key nutrients and amino acids to support your body’s own production—plus it’s delicious and hormone-friendly. 

What is the Best Collagen for PCOS?

Keep in mind that you can get collagen and its ingredients from foods. You don’t necessarily need to dish out hundreds of bucks on a fancy supplement to get collagen!

Top 5 Collagen-Rich Foods for PCOS Support

Here are my top 5 collagen-rich foods and how to incorporate them into meals, snacks, and drinks:

Bone Broth

Benefits: Bone broth is made by simmering animal bones and connective tissues. It’s rich in collagen, amino acids, and minerals. 

How to include: Here is a fantastic recipe for bone broth. Use bone broth as a base for soups, stews, or simply drink it as a warm beverage.

Chicken

Benefits: Chicken, especially the skin and cartilage, is a good source of collagen, particularly type II collagen (fab for joints!). 

How to include: Add chicken with skin and cartilage to soups or salads, or enjoy roasted chicken with the skin on.

Fish

Benefits: Fish, especially the skin, is rich in type I collagen (amazing for the skin!).  

How to include: Consume fatty fish (like salmon or sardines) with the skin on. 

Egg Whites and Eggshell Membrane

Benefits: Egg whites contain amino acids that are essential for collagen production. The eggshell membrane also contains collagen. 

How to include: Use eggs in omelets, baking, or soups. Some supplements contain powdered eggshell membrane.

Beef

Benefits: Beef, especially cuts with a lot of connective tissue like brisket or chuck roast, is rich in collagen. 

How to include: Slow-cook tougher cuts of beef to break down the collagen, making it more digestible. Incorporate beef into stews, roasts, or as a part of your main meals.

Additional Tips for a Collagen-Boosting Diet

Vitamin C: Vitamin C is crucial for collagen synthesis. Include vitamin C-rich foods like citrus fruits, bell peppers, and strawberries to support collagen production.

Protein-Rich Foods: Ensure your diet includes a variety of protein sources, as they provide the amino acids necessary for collagen production. Remember, you’ll never be able to produce collagen if you don’t eat enough protein. This includes meat, fish, eggs, dairy, legumes, and nuts.

Hydration: Staying hydrated is essential for maintaining healthy skin and overall bodily functions, including collagen production. 

Best Collagen Supplements for PCOS

I hope that I have convinced you that collagen supplements are not an absolute must-have in PCOS management.

However, if you feel strongly about collagen and PCOS management, make sure you buy one that has been 3rd party tested to avoid any nasty additives and heavy metals. 

For example, 

• Landish Pure Canadian Marine Collagen
• Sproos Life Marine Collagen
• Stay Luxe Collagen 

The Bottom Line on PCOS and Collagen

As a PCOS dietitian, it is my opinion that, in general, collagen supplements are not necessary in PCOS management. As science continues to study collagen’s effects in PCOS, we will have more robust recommendations. 

The best way to ensure you are maximizing your nutrition is to consult an expert PCOS dietitian who can recommend foods and supplements to help you reach your PCOS goals. 

If you want to work together, contact me to book a session with a PCOS dietitian.

FAQ 

Should I Take Collagen If I Have PCOS?

Collagen supplements can be a helpful addition to a PCOS-friendly routine, but they aren’t a magic fix or necessary. 

While collagen won’t “treat” PCOS directly, it can support several areas that are commonly affected – like skin, joints, gut health, and inflammation. 

If you’re already focusing on a balanced diet, collagen can be a low-effort way to boost protein and support your overall well-being.

Is Collagen Good for Hormonal Imbalance?

Collagen doesn’t directly regulate hormones like insulin or estrogen, but it can support the systems that influence hormonal balance. 

For example, glycine (found in collagen) supports liver detoxification and helps modulate cortisol, your stress hormone. Collagen may also support gut and skin health, both of which are tied to hormone imbalances. 

Think of collagen as one supportive piece of a larger hormone-balancing puzzle – it works best alongside blood sugar-balancing meals, movement, stress management, and quality sleep.

Who Should Avoid Collagen?

Most people tolerate collagen well, but it’s not for everyone. 

You may want to avoid collagen supplements if you:

• Have a known allergy to the source (e.g. marine, bovine, or egg-derived collagen)
• Are vegetarian or vegan (although some may choose “vegan collagen boosters” made from plant extracts)
• Are taking medications or have medical conditions that interact with amino acids or protein metabolism (check with your care provider)

Also, be cautious with flavored or sweetened collagen powders that contain added sugars or artificial ingredients – they’re not ideal for hormone or blood sugar balance.

Does Collagen Help with PCOS Hair Loss?

Collagen may help support hair health, especially when hair loss is related to inflammation, nutrient deficiencies, or stress – all common with PCOS. 

Collagen contains amino acids like proline and glycine, which are building blocks for keratin (the protein that makes up your hair). It also supports skin and scalp health, which can help create a better environment for hair growth. 

That said, if your hair loss is driven by elevated androgen levels (like DHT), collagen alone may not be enough – you may also need to address the hormonal root cause through nutrition, lifestyle, and targeted supplements.

What Vitamin Supplements Are Helpful for People Suffering with PCOS?

Several vitamins and supplements have been shown to support common PCOS symptoms. 

Here are some of the most helpful:

• Inositol (Myo + D-Chiro) – Supports insulin sensitivity, ovulation, and egg quality.
• Vitamin D – Often low in people with PCOS and can help improve insulin resistance and mood.
• Magnesium – Supports blood sugar regulation, reduces cravings, and can help with sleep.
• Omega-3s – Reduce inflammation, support hormone production, and may help with acne and mood.
• Zinc – Important for skin health, immune function, and potentially reducing hair loss.
• B Vitamins (especially B6 and B12) – Support energy, mood, and hormone metabolism.

Before starting any new supplement, it’s best to work with a qualified registered dietitian nutritionist or healthcare provider to personalize your plan based on your symptoms, lab work, and goals.

Curious how collagen stacks up against other supplements for PCOS? Don’t miss this detailed guide to the best supplements for managing PCOS symptoms – including the research, how to choose, and what to avoid.

P.S. If you’re tired of googling your way through PCOS, I made The PCOS Plate just for you. It’s simple, practical, and actually works.eating well with PCOS.