Pregnancy is an exciting but often overwhelming experience for women. Almost everything you consume — from your morning coffee to nutritional supplements — suddenly matters more because you're nurturing another life.
Collagen is a protein supplement many people take for skin, hair, and joint health. And as it has become increasingly popular, many expectant mums are wondering: 'Is it safe to take collagen while pregnant?'
The things is, there's no definitive answer yet from major health authorities because collagen supplements haven't been specifically studied in pregnant humans. That doesn't mean it's automatically harmful, but you should think about it carefully and get advice from a professional.
Here, we explore what collagen is, what leading health organisations recommend, the evidence available, and practical advice for mums-to-be.
What is collagen for?
Collagen is the most abundant structural protein in the human body. The skin, bones, muscles, cartilage, and connective tissues are all made with it.
Naturally produced by the body, collagen levels decline with age. This is why products like collagen powders, capsules, and drinks have become mainstream. These supplements usually contain hydrolysed collagen peptides, which are smaller protein fragments intended to boost your overall protein intake.
In non-pregnant adults, collagen supplements are generally considered safe for most people when taken in moderate amounts. They are often marketed for skin elasticity, joint comfort, and general protein support.
However, collagen supplements are categorised as dietary supplements. This means they are not regulated or formally approved for safety or effectiveness before entering the market.
Recommendations from trusted health bodies
Most of the guidance from recognised health organisations — such as the National Health Service (NHS) in the UK and the American Pregnancy Association in the US — focuses on general supplement safety and prenatal vitamins, but not collagen specifically.
Here is what experts say about prenatal supplements:
- The NHS emphasises that while certain vitamins like folic acid and vitamin D are recommended during pregnancy, any supplement should be discussed with a healthcare provider before use.
- The American Pregnancy Association notes that prenatal vitamins are beneficial for ensuring you get essential nutrients. Yet, it also stresses that supplements do not replace a healthy diet and should only be taken when recommended by your healthcare provider.
- A healthy, well-balanced diet is still the best way to get all the nutrients you need. Supplements should only be used to fill in specific gaps, not as a replacement for everything you haven't eaten that day.
The research gap explained
This is where medical clarity runs thin. No major health authority has issued a statement saying collagen supplements are definitely safe or unsafe for pregnant women. This is simply because there haven't been large-scale clinical studies involving human subjects who are pregnant. Most of what is available to the public comes from general guidelines about how safe supplements are.
A recent review of existing resources on collagen peptides confirms this lack of pregnancy-specific data. It comes to the conclusion that collagen isn't proven to be dangerous, but there isn't enough solid evidence to say for sure that it is safe either. In other words, the science is neutral but unclear.
So, what does that mean? Because collagen supplements are mostly protein fragments your body already uses, they could be harmless when taken responsibly. But the fact that there is no evidence does not mean that something is safe, especially when unknown factors could affect a baby's growth.
Potential Risks and Considerations
Even if collagen itself isn't inherently harmful, several safety points deserve attention:
1. Lack of Regulation
Supplements aren't tested for safety, purity or dosage before they hit shelves. Some products may contain additives, undisclosed ingredients, or contaminants like heavy metals. This is crucial during pregnancy, when even small amounts of contaminants can matter.
2. Additives and Other Ingredients
Many collagen products contain additional compounds like flavours, herbs, or extra vitamins. Some of these might not be safe to take when pregnant, or they might mix with hormones or medicines used during pregnancy. If a product has ingredients other than collagen peptides, then your doctor has to look at a lot of different factors.
3. Dietary and Dose Context
Even in adults not pregnant, studies on collagen typically involve moderate doses (often 2.5–10 g per day) consumed as part of a balanced diet. But whether similar doses affect pregnancy outcomes is unknown.
4. Confusion With Other Supplements
Medical sources say that taking herbal and dietary vitamins during pregnancy should only be done after talking to a doctor first. It's not always clear how these supplements will work or combine with other medicines. Some have known risks if taken in large amounts, like high doses of fat-soluble vitamins.
What Should Expectant Mums Do?
Here's a practical and well-researched roadmap when thinking about collagen use during pregnancy:
1. Talk to Your Doctor
This step is non-negotiable. Your GP, midwife, or obstetrician knows your medical history and pregnancy progress better than you. No online article can replace personalised medical advice. If you bring your product label to your appointment, they can assess its safety more accurately.
2. Prioritise Whole Foods
Protein is essential in pregnancy for your baby's growth and your own health. Meat, poultry, fish (low-mercury options), dairy, beans, nuts, seeds and eggs are all full of amino acids that your body needs to make collagen on its own. These foods can help fill in nutrition gaps without the need for supplements.
3. Only Use if Doctor Approved
If you were taking collagen before you got pregnant and didn't have any problems, ask your doctor if you can keep taking it. Are you considering starting it because of stretch marks or hair changes? You must first explore dietary and vitamin C-rich foods, which support your body's natural collagen production.
4. Choose High-Quality Supplements
If your healthcare provider does clear collagen supplements, choose brands with third-party testing to minimise risks of contaminants or inaccurate labelling.
5. Don't Rely on Marketing Claims
Pregnancy is a time for cautious choices. Many products on the market make claims about skin elasticity, joint support, or other benefits but without strong clinical evidence specific to pregnancy.
Keep in mind that the safest approach is to think of collagen as optional, not essential. Focusing on a balanced diet, following clinically recommended prenatal supplements, and seeking professional advice where needed will help make sure that you and your baby are healthy throughout pregnancy.
