Pregnancy Probiotics

30 capsules |1 month's supply

Dr Sasivimol Ahmed PhD, PG Dip (Personalised Nutrition), BSc (Food Science)
I love this supplement because it contains the UK's most researched friendly bacteria strains for pregnancy, post-birth and breastfeeding.
Dr Sasivimol Ahmed
Dr Sasivimol Ahmed PhD, PG Dip (Personalised Nutrition), BSc (Food Science)

Who is it for?

Completely natural and vegan, Optibac Probiotics Pregnancy is a probiotic and prebiotic supplement especially formulated to support gut, immune and vaginal health in pregnancy.

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  • Vegan


  • Dairy free

    Dairy free

  • GMO free

    GMO free

  • Gluten free

    Gluten free

  • During breastfeeding

    During breastfeeding

Key benefits

Probiotics suitable for pregnancy

Especially for pregnant women, from conception through to birth and early motherhood, to help support digestive and immune function and vaginal health, as well as general well-being*.

  • Probiotics in pregnancy Contains well-researched probiotic strains trialled specifically in women and shown to support gut, immune and vaginal health during pregnancy, when breastfeeding, and post-birth.
  • Scientifically proven All three strains have been shown to survive to reach the gut, and L. rhamnosus HN001 and L. acidophilus La-14® also reach the vaginal tract
  • For the gut and vagina These strains have been shown to complement the bacteria natural to the gut and vaginal areas
  • With FOS fibres A synbiotic supplement containing 12 billion live bacterial cultures in combination with 30mg prebiotic FOS
  • Immune effects Maternal supplementation of L. rhamnosus HN001 may have beneficial immune effects for mother and baby, and has been shown to stimulate immunological responses 
  • A more natural option These probiotics for pregnancy are vegan, gluten free for those with coeliac disease, and made with absolutely no artificial flavorings or colorings
  • Easy and convenient Daily pregnancy probiotic in an easy-to-swallow capsule, with no need for refrigeration
  • Trusted brand From the UK’s most trusted & recommended brand of friendly bacteria supplements, as determined in an independent survey of 1000 British women*



Sheih Y et al. (2001). Systemic immunity-enhancing effects in healthy subjects following dietary consumption of the lactic acid bacterium Lactobacillus rhamnosus HN001. Journal of the American College of Nutrition, 20 (2): 149-156.

Probiotic strains

  • Lactobacillus rhamnosus HN001
  • Lactobacillus acidophilus La-14®
  • Bifidobacterium lactis HN019

Added nutrients

  • Prebiotic FOS
See full ingredients list

Complements gut bacteria


General digestive

Customer reviews

5/5 (22 reviews)
  • I started taking these midway through my pregnancy and have continued - baby is 4 months now. In my previous pregnancies I struggled with thrush and pleased to say I didn’t get it this time around and even with breastfeeding I haven’t got it in my nipple when I have previously. Unfortunately they didn’t help with the pregnancy constipation especially in the last trimester but I did then get the bifido and fibre supplement to use alongside these and that helped more with that side of things.

    Anna Hughes- 7th March 2022

  • I really suffered in my first pregnancy with bloating and nausea when taking other tablets. Since taking these with my second pregnancy I have noticed a considerable difference. It has also helped to keep my immune system up this time as I was catching all sorts of colds and bugs previously. Would highly recommend.

    Kirsty Roberts- 20th October 2021

  • I am in my third trimester and was really struggling with indigestion, bloating and gas. I was recommended these by a friend and I have found that my symptoms have really improved over the past month, I am no longer feeling uncomfortable and my digestive system is back on track. Since taking the probiotics, I have also noticed energy levels have increased as I was starting to get lethargic. I also love the fact that these probiotics are aiding my babies immune system too, especially during the uncertainty of the pandemic we are in.

    Harriet Gray- 10th September 2021

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Help & advice

Speak to our team of experts (nutritionists, microbiologists and nutritional therapists) any time for free advice, with absolutely no obligation to buy.

Camilla Gray
Camilla Gray DipCNM Nutritional Therapist
  • How to use

  • Ingredients

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  • Delivery & returns

  • How to use

    Recommended use

    Food supplement suitable for pregnant women from conception through to birth and for breastfeeding and non-breastfeeding women post birth with the following recommendations:

    • Take 1 capsule daily, preferably with breakfast.
    • For those unable to swallow capsules, open and mix contents with a cool drink / food.
    • Do not exceed recommended daily dosage.
    • May be taken on an ongoing basis or as professionally directed.
    • For best results use daily.

    Supporting Information

    Morning sickness and/or nausea is a common symptom in pregnancy and therefore pregnant women often prefer taking supplements in the form of capsules. To make taking Pregnancy capsules as easy as possible, we recommend tilting the head forward to swallow the capsule. Details below:

    • When swallowing tablets, it’s common to put the tablet in your mouth, drink some water and tilt your head back to swallow it (i.e. look up before swallowing). Doing this uses the weight of the tablet to move it to the back of the throat and makes it easier to swallow successfully.
    • With a capsule, however, this won’t work because of the air inside it. Instead, while the capsule and water are in the mouth, we recommend to look down before swallowing. This will buoy the capsule to the top of the water (back of the throat) and make it easier to swallow, particularly if morning sickness and/or nausea are a problem for the individual.

    Storage instructions

    • For best results, do not remove desiccant sachet from the glass jar and close lid firmly after each use.
    • Store in a cool, dry place below 25°C and out of direct sunlight. For maximum potency, can be refrigerated after opening.


    Probiotics are not recommended for those with serious medical conditions e.g. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor's care. Keep out of reach of children.

    Gut health supplements are not intended to prevent, treat or diagnose any medical conditions. If taking probiotic supplements for gut health, note that these should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. If you are taking any medications or have a serious medical condition, consult a doctor before use. Optibac supplements will not cause dependency and may be used on an ongoing basis.

  • Ingredients


    Probiotic blend: Lactobacillus rhamnosus HN001, Lactobacillus acidophilus La-14®, Bifidobacterium lactis HN019; corn starch; hydroxypropyl methylcellulose capsule; Prebiotic (FOS 30mg); vegetable magnesium stearate

    Each capsule guarantees 12 billion CFU.

    Optibac Probiotics Pregnancy


    • Vegan
    • Dairy free
    • GMO free
    • Gluten free
    • Suitable in pregnancy
    • Suitable for breastfeeding
    • Soy free
    • Yeast free
    • Free from artificial flavorings, colorings and preservatives
    • No chemicals or parabens

    Following the taxonomic updates advised by a global team of scientists and published in April 2020, a reclassification has been proposed for the Lactobacillus rhamnosus species. The L. rhamnosus strain in Pregnancy may therefore now also be known as Lacticaseibacillus rhamnosus HN001.

    Format Capsule
    CFU 12 billion
    Added Ingredients FOS Fibres
    Recommended Use 1 capsule daily
    Age Range Adult
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  • Delivery & returns

    USA standard shipping: $4.99 

    International postal order - typically deatched and delivered within 5-10 working days.
    Free standard shipping on orders over $100.

    USA express shipping: $6.99 

    We use DHL and orders are typically dispatched and delivered within 2-5 working days.

    Good to know

    • We'll send you an email to confirm once your parcel has been dispatched.
    • For delivery queries, please email
    • We are unable to ship orders to PO boxes.
    • Product prices on this website are always shown in US dollars (USD $) and exclude tax - tax is not applicable as orders are fulfilled from the UK.

    Worldwide Delivery

    • We deliver to more than 50 countries.
    • Shipping is charged at cost - please note that duties may apply.
    • Please allow 3-7 working days for delivery within Europe and 5-12 days to all other destinations. Includes order tracking.  
    • If you are located within the United Kingdom or Europe, we recommended switching to our UK website.
    • International deliveries might currently take a little longer due to the global coronavirus situation. Please refer to the webpage of our international delivery provider DHL to confirm the number of days it takes to receive your order and whether they currently ship to your country.
    • Most international delivery prices are dependent on the size and weight of your order and where it is being sent. You'll be shown the final price of shipping in the checkout, before payment, once we have your address and order details.
    • Long distance shipping and short-term exposure to high temperatures will not compromise the viability of our products. Customers living in very hot countries should store the products out of direct sunlight and refrigerate if the option is available.

    For more details regarding international orders, currency conversion and applicable tax for orders outside the USA, please take a look at our delivery FAQ.


    If you have changed your mind, you can return goods, at your cost, unopened within 14 days for refund or exchange, this does not affect your statutory rights.

Customer Questions

All questions answered by probiotic experts Dr Kate Stephens PhD (Food and Microbial Sciences) BSc(Hons) Medical Biology and Kerry Beeson BSc (Nut. Med.) Nutritional Therapist

Our Pregnancy contains specific probiotic strains which have extensive research to support their use all the way from conception, throughout pregnancy and into early motherhood(1-4). Other brands often use the same strains of probiotics in all of their supplements, and simply add other ingredients to differentiate how they can be used. Unlike other brands, Pregnancy contains probiotic strains which have been researched during pregnancy, so there is no need for added ingredients. However, should you wish to take other prenatal supplements and vitamins, then it is fine to take your Pregnancy supplement alongside these.

(1) Slykerman R et al. (2017). Effect of Lactobacillus rhamnosus HN001 in pregnancy on postpartum symptoms of depression and anxiety. EBioMedicine, 24, 159-165.(2). Prescott SL et al. (2008). Supplementation with Lactobacillus rhamnosus or Bifidobacterium lactis probiotics in pregnancy increases cord blood IFNy and breast milk transforming growth factor B and immunoglobin A detection. Clinical and experimental Allergy,38(10):1606- 1614.(3)Dekker J et al. (2009). Safety aspects of probiotic bacterial strains Lactobacillus rhamnosus HN001 and B. lactis HN019 in human infants aged 0-2. International Dairy Journal,149-154 (4)Wickens K et al. (2017). Early pregnancy probiotic supplementation with Lactobacillus rhamnosus HN001 may reduce the prevalence of gestational diabetes mellitus: a randomised controlled trial. British Journal of Nutrition, 117, 804-813.
Read More

It's natural to be concerned about taking friendly bacteria during pregnancy, but Optibac Probiotics Pregnancy contains probiotic strains which have been clinically trialled in women during pregnancy and early motherhood. These high-quality live cultures have been shown to safely offer potential benefits* for digestive health(1), intimate health(2)and immune health(3)as well as supporting overall wellbeing (4)in pregnancy and into early motherhood*.

(1).Ibarra A et al. (2018). Effects of 28-day B Lactis HN019 Supplementation on Colonic Transit Time and Gastrointestinal Symptoms in Adults With Functional Constipation, Gut Microbes, 9(3):236-251.(2). Russo R et al. (2019). Randomised clinical trial in women with recurrent vulvovaginal candidiasis: efficacy of probiotics and lactoferrin as maintenance treatment. Mycoses, DOI: 10.1111/myc.12883.(3). Slykerman R et al. (2017). Effect of Lactobacillus rhamnosus HN001 in pregnancy on postpartum symptoms of depression and anxiety. EBioMedicine, 24, 159-165. (4). Sheih Y et al. (2001). Systemic immunity-enhancing effects in healthy subjects following dietary consumption of the lactic acid bacterium Lactobacillus rhamnosus HN001. Journal of the American College of Nutrition, 20 (2): 149-156.
Read More

FOS stands for Fructo-oligosaccharides, which are a type of non-digestible carbohydrate. FOS prebiotic fibres are often added to probiotic supplements such as Optibac Probiotics Pregnancy as they can be fermented by good bacteria in the gut microbiome, giving your little probiotic pals the best start!

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