Risk of Collagen During Pregnancy- Safety, Benefits & How to Choose Wisely

by Louis Antoniou November 11, 2025

 

Pregnancy brings many considerations, and one of the key topics that often arises is the use of supplements, including collagen. While collagen offers various benefits for skin, bones, and joints, the risk of collagen during pregnancy is an important factor to consider. It's essential to compare the potential advantages against any possible adverse effects, and to choose the right type of collagen supplement. This article provides an in-depth look at the safety of collagen during pregnancy, its benefits, and how to make informed decisions when selecting collagen products.

What Is Collagen?

Collagen is found abundantly in the body and is essential for maintaining the structure of the skin, bones, muscles, and connective tissues. There are several types of collagen, with Type I, II, and III being the most prevalent in humans. Type I is mainly found in skin, tendons, and bones, while Type II is predominant in cartilage. Collagen supplements, or hydrolyzed collagen (broken down into smaller peptides for improved absorption), are commonly used to support skin elasticity and joint health. Bone broth collagen is another popular source, rich in natural collagen, amino acids, and nutrients. For those considering supplements, choosing certified collagen supplements ensures higher quality and safety standards. When considering collagen supplement safety, it’s essential to select those free from harmful additives or contaminants, especially during pregnancy, when sensitivity to certain ingredients may increase. Some individuals may find collagen-heavy products too intense for their digestive systems.

Why “Risk” of Collagen During Pregnancy Is Misleading

When it comes to the risk of collagen during pregnancy, it’s important to distinguish between the natural protein itself and the potential risks associated with certain collagen supplements. Collagen is essential for skin, bones, and joints. It’s not inherently harmful to consume; however, the concern arises when it comes to the safety of collagen supplements. The risks generally stem from the quality of the supplements, as some products may contain added preservatives, artificial flavors, or other ingredients that could be unsafe during pregnancy.

While the body naturally produces collagen, collagen-heavy supplements can sometimes introduce contaminants or allergens, depending on their source. For instance, collagen derived from marine or bovine sources may not be suitable for those with sensitivities or allergies. Therefore, certified collagen supplements formulated explicitly for safety, can help mitigate these risks. These supplements are typically tested for contaminants and allergens, ensuring they are safe for consumption during pregnancy.

The global collagen supplement market, valued at USD 9.8 billion in 2022, is expected to reach USD 19.6 billion by 2032, experiencing a surge that underscores growing consumer demand for these products. As more people seek collagen for skin, joint, and bone health, it’s critical to be mindful of the safety and quality of the products, particularly for pregnant women.

The Protein RDA increases during pregnancy to 1.1 g/kg/day (~71 g/day), highlighting the need for safe, high-quality protein sources, such as collagen.

Potential Benefits of Collagen for Mom and Baby

Collagen helps maintain the structure and function of connective tissues, making it particularly beneficial for both mothers and their babies during pregnancy. The increased demand for protein during pregnancy, with the Protein RDA rising to 1.1 g/kg/day (~71 g/day), makes collagen an appealing option as a supplemental protein source that supports various bodily functions.

Skeletal and Cartilage Support

Collagen helps to form the foundational structure of bones and cartilage. For pregnant women, this support is vital as their bodies undergo significant changes to accommodate the growing fetus. Collagen can help maintain bone density and cartilage health, which is crucial for joint comfort and mobility during pregnancy. It also aids in the development of the baby’s skeletal system, as collagen is integral to bone formation.

Skin Elasticity

As the body stretches and adapts to pregnancy, the skin undergoes significant changes. Collagen supports skin elasticity, which can help prevent or reduce the appearance of stretch marks. Ensuring adequate collagen levels may contribute to healthier, more resilient skin during pregnancy, improving comfort as the skin stretches and contracts.

Joint Comfort

Pregnancy places additional pressure on joints and ligaments, resulting in discomfort or pain. Collagen can support joint health by promoting the regeneration of cartilage, which may reduce joint pain and improve flexibility, helping mothers stay more comfortable as they carry the extra weight of pregnancy.

Hair and Nail Health

Many pregnant women experience changes in their hair, including thinning or brittleness. Collagen helps strengthen hair and nails by improving the integrity of keratin, the protein responsible for their structure. This is beneficial during pregnancy, when hormonal fluctuations may impact hair and nail health.

Fetal Tissue Development

Collagen is also crucial for the development of fetal tissues. It supports the growth of the placenta and aids in the formation of the baby's skin, muscles, and other connective tissues. By ensuring adequate collagen intake, the developing baby can receive the structural foundation needed for proper growth and development.

Potential Risks of Collagen Supplements During Pregnancy

While collagen supplements offer potential benefits for pregnant women, certain risks associated with collagen use during pregnancy should be considered. These risks are mainly associated with contamination, additives, and digestive side effects, which can vary based on the product's quality. For optimal safety, it's crucial to select certified collagen supplements that are free from harmful ingredients and rigorously tested for purity. Here are some specific risks to be aware of when using collagen supplements during pregnancy.

Contamination Risks

Collagen supplement contamination, particularly the presence of heavy metals such as lead, mercury, and cadmium, is a significant concern. 

• These contaminants can sometimes be found in collagen sourced from fish or animal byproducts. 

• Exposure to heavy metals during pregnancy can be dangerous, potentially leading to developmental issues in the fetus, including neurological impairments and congenital disabilities. For example, mercury is especially toxic to developing brains, and even low levels can harm cognitive development. 

• To reduce the risk of exposure, it’s crucial to choose certified collagen supplements that undergo rigorous testing for contaminants. Opting for high-quality products that are tested for purity helps mitigate these dangers, ensuring both mother and baby are protected from harmful substances. 

Always verify the product’s safety certifications and reviews before use to ensure you're getting a safe, contamination-free product.

Allergen & Additive Risks

Another concern with collagen-heavy supplements is the potential presence of undisclosed allergens, sweeteners, or fillers that may cause adverse reactions during pregnancy. 

• Some collagen products may contain added herbs, artificial sweeteners, or other chemical additives that can trigger sensitivities or allergies in pregnant women. For example, certain herbs might interact with pregnancy hormones or affect blood pressure, while some sweeteners can cause digestive discomfort or lead to blood sugar imbalances. 

• The collagen supplement safety of a product largely depends on how well it is formulated, free from unnecessary additives. 

• Pregnant women should look for certified collagen supplements with a short, simple ingredient list and avoid products with hidden ingredients that may compromise their health. 

• Always check labels carefully to ensure no potential allergens or harmful fillers are present, and choose reputable brands known for transparency and quality.

How to Choose a Safe Collagen Supplement When Pregnant

When pregnant, choosing a safe collagen supplement requires a cautious approach, as not all products are created equal. To ensure safety for both mother and baby, follow this actionable checklist-

1. Consult Your Healthcare Provider

Before adding any supplement to your routine, including collagen, it’s essential to consult your doctor or OB/GYN. OB/GYN collagen advice can help you know the specific risks and benefits in the context of your pregnancy. They help determine the appropriate dosage and whether collagen supplementation is suitable for you based on your unique needs.

2. Look for Third-Party Testing

Certified collagen supplements undergo third-party testing to confirm their quality and purity. This ensures the product is free from contaminants and matches the advertised ingredient profile. Third-party testing helps verify that the supplement is free from harmful additives, heavy metals, or other harmful substances, giving you peace of mind.

3. Choose Single-Ingredient Collagen Supplements

To minimize unnecessary exposure to potentially harmful fillers or allergens, choose supplements with a single, clean ingredient—just collagen peptides. Supplement labeling accuracy is crucial to ensure that the product contains only the ingredients you want, without any additional unwanted additives.

4. Transparency in Sourcing

It’s essential to choose collagen supplements that provide complete transparency in sourcing and manufacturing processes. High-quality brands will be transparent about the origin of the collagen, whether it's marine, bovine, or chicken-based, and the methods used to extract and purify it. This ensures that the collagen is sourced responsibly and that it aligns with your dietary preferences or restrictions.

Food-Based Collagen- First-Line Strategy

While collagen supplements can offer benefits during pregnancy, a food-based approach is often the best first-line strategy for most women. Not only does it provide natural collagen, but it also delivers other essential nutrients that support overall health.

Bone Broth

One of the best food-based sources of collagen is bone broth. It has collagen, amino acids, and other essential nutrients vital for maintaining joint, skin, and bone health. Bone broth can be taken as soups, stews, and even as a warm drink. It’s a natural and highly bioavailable source of collagen that supports the body’s connective tissues during pregnancy.

Collagen-Rich Foods

Other foods that support collagen production include chicken skin, fish with bones, and egg whites. These protein-rich foods contain the building blocks needed to support collagen synthesis. Additionally, foods rich in vitamin C and zinc, such as citrus fruits, berries, leafy greens, and nuts, can also help boost collagen production. These nutrients act as co-factors in collagen synthesis, improving its effectiveness.

By focusing on whole foods that promote collagen production, pregnant women can naturally increase their collagen levels without relying heavily on supplements. Food-based sources also provide a broad array of other beneficial nutrients, supporting both maternal health and fetal development.

Expert Opinions & Clinical Insights

The safety and benefits of collagen supplements during pregnancy are of significant interest to both medical professionals and nutrition experts. Here’s what OB/GYNs and Registered Dietitians (RDNs) have to say about collagen intake during pregnancy-

OB/GYN Collagen Advice

Dr. Emily Thompson, an OB/GYN, explains that collagen is generally safe during pregnancy when taken in moderation and from reputable sources. “While collagen can support skin elasticity and joint health, it's crucial to choose certified collagen supplements that are free from contaminants,” she advises. “The most important thing is to ensure that the product is third-party tested to avoid any hidden risks, especially when it comes to heavy metals or allergens.”

RDN Collagen Guidance

Registered Dietitian Nutritionist (RDN) Sarah Lee emphasizes the role of glycine, an amino acid found in collagen, during pregnancy. “Pregnant women may have higher demands for glycine, which is crucial for fetal development,” Lee says. “However, relying on food sources like bone broth and collagen-rich meals is often the best strategy. Supplements can be helpful but should be used cautiously, especially with a focus on supplement labeling accuracy to ensure the product meets high safety standards.”

Both experts agree that while collagen supplements can offer benefits, it’s essential to take a balanced approach, prioritizing food-based sources and carefully selecting supplements when needed. Always get personalized advice tailored to your pregnancy from a professional.

Frequently Asked Questions

1. Why is collagen not safe for pregnancy?

Collagen protein itself is generally safe during pregnancy- the risks arise from unregulated collagen supplements. These products may contain contaminants such as heavy metals, undisclosed additives, or incorrect labeling, which can pose potential health risks. It’s crucial to choose certified collagen supplements that go through third-party testing.

2. Can collagen affect the baby's development?

Collagen’s amino acids, such as glycine, are crucial for fetal development, especially for bone, cartilage, connective tissue, and organ integrity. These nutrients support the formation and growth of the baby’s structural tissues. Adequate collagen levels can help ensure healthy fetal development, benefiting both mother and child during pregnancy.

3. What supplements should I avoid during pregnancy?

During pregnancy, avoid high-dose vitamin A, certain herbs such as Black Cohosh and Goldenseal, and weight-loss supplements. These can have harmful effects on pregnancy. However, certified collagen supplements are safe when appropriately sourced, ensuring you are not exposed to harmful additives or contaminants commonly found in low-quality products.

4. Can you drink protein shakes while pregnant?

Yes, you can have protein shakes while pregnant, but the safety of the product depends on its quality and purity. Ensure the shake has ingredient transparency, with no harmful additives or fillers. Like collagen, it’s essential to choose protein supplements that guarantee purity and avoid any unsafe ingredients.

Wrapping Up

Collagen supplements can offer numerous benefits during pregnancy, particularly in supporting skin, joint health, and fetal development. However, it’s essential to prioritize collagen supplement safety by choosing high-quality, certified collagen supplements that undergo third-party testing. Always consult a professional to ensure the best choices for your health. With the right product, collagen can be a valuable addition to your pregnancy regimen.

For a trusted source of premium collagen supplements, consider Root Vitality. Their products undergo rigorous testing for purity and quality, ensuring safety for both mother and baby. Check out their range today and support your health with confidence! 

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