Adult Gummies

30 gummies |1 month's supply

4.9/5 (19 reviews) Read verified product reviews
4.9/5 (19 reviews) Read verified product reviews
Louise Mason BA (Hons) Dip CNM Nutritional Therapist, Dip CNM Naturopath, mANP
Great, all-in-one supplement containing a high quality strain and added zinc and calcium to support immune and gut health. Also no added sugars.
Louise Mason
Louise Mason BA (Hons) Dip CNM Nutritional Therapist, Dip CNM Naturopath, mANP

Who is it for?

Delicious mixed berry gummies for adults containing the scientifically proven friendly bacteria Bacillus coagulans Unique IS-2 and FOS fibres. Combined with your daily recommended intake of Vitamin D, Zinc and Calcium to support gut and immune health in one daily supplement.

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FREE UK delivery on orders over £40.

UK express - Monday to Friday delivery.

See our Delivery & Returns for more information.

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  • Vegan


  • Gluten free

    Gluten free

  • No added sugar

    No added sugar

  • Artificial colour free

    Artificial colour free

Key benefits

Friendly bacteria gummies for adults

  • Supports gut^ and immune* health in one easy supplement Includes your daily intake of Vitamin D as well as Zinc and Calcium plus friendly bacteria and FOS fibres
  • Mouthwateringly delicious Thanks to the delicious mix of strawberries, raspberries and blackberries Adult Gummies are arguably the tastiest way to take your daily friendly bacteria supplement
  • A natural choice Made purely from fruit (juices/purees), pectin (from apple/citrus), friendly bacteria, Vitamin D, Calcium, Zinc and FOS fibres, there are no hidden nasties. That’s no additives or preservatives, no sugar syrups or artificial colourings
  • Vegan A vegan alternative to dairy based yoghurts and yoghurt drinks and other gummies that use gelatine
  • No added sugar or sweeteners Unlike other gummies and yoghurt products that use sugar syrups and or added sugar
  • Highly researched Contains the extensively researched Bacillus coagulans Unique IS-2 strain, scientifically studied in 10 gold standard trials including over 1000 people
  • 100% plastic free packaging Perfect for those who are trying to limit their use of plastic. Adult Gummies come in a home compostable pouch made from plant fibres and a fully recyclable FSC certified carton
  • Highly recommended From the UK’s most trusted & recommended brand of friendly bacteria supplements.

*Vitamin D & Zinc contribute to the normal function of the immune system
^Calcium contributes to the normal function of digestive enzymes

Optibac Probiotics strains

  • Bacillus coagulans Unique IS-2

Added nutrients

  • Vitamin D
  • Zinc
  • Calcium
  • FOS fibres
See full ingredients list

Complements gut bacteria


General digestive

Customer reviews

4.9/5 (19 reviews)
  • These taste absolutely incredible, almost as good as Percy Pigs minus all the sugar! As a vegetarian it’s rare to find gummies that are gelatin free and have no added sugars. The fact they are so yum and easy to take means I take one every day, before I struggled with capsules and pills always forgetting to take them daily. Since taking them I have more energy and feel healthier. High fives to everyone at Optibac for creating a mega tasty vegan probiotic!

    Ben- 6th September 2022

  • Really fruity taste and apart from the friendly bacteria they contain vit D and zinc so saves me buying any extra tablets. Started taking half a gummie to ease my way on to them. Really really pleased.

    Wendy- 23rd May 2022

  • Fantastic gummies, very tasty and easy to take. Ideal for me, as I am having problem with swallowing bigger pills. I trust that ingredients are top quality and easily absorbed by our body. I wish all my vitamins are gummies, thank you Nadia for recommending it to me. I understand that the company is ecologically orientationed, it is always a plus.

    Alicja L- 1st April 2022

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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

Why choose us?

We are the UK's most trusted & recommended brand of friendly bacteria supplements.

† As determined in an independent survey of 1000 British women.

  • How to use

  • Ingredients

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  • Delivery & returns

  • How to use

    Recommended use

    • 1 gummy a day, with or without food.
    • Do not exceed daily recommended dosage.
    • Can be used on an ongoing basis.

    Storage instructions

    Store in a cool, dry place below 25°C and out of direct sunlight.


    Live cultures 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, infants with 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

    Ingredients per gummy

    Fruit juice/puree (apple juice/puree concentrate, strawberry puree, raspberry puree, blackberry puree), fructooligosaccharide fibres (FOS 0.85g), tricalcium phosphate (calcium 120mg, 15% NRV*), lemon juice concentrate, zinc gluconate (zinc 8mg, 80% NRV*), black carrot juice concentrate, gelling agent: pectin, citrus fibre, live cultures: Bacillus coagulans Unique IS-2, natural flavouring, Vitamin D3 (10µg/400IU, 200% NRV*)

    Each gummy contains 5 billion good bacteria. Guaranteed until the date of expiry.

    *Nutrient Reference Value


    • Vegan
    • Vegetarian
    • No dairy
    • Gluten free
    • Soy free
    • Yeast free
    • No added sugars
    • GMO free
    • Free from artificial flavourings, colourings and preservatives
    • No chemicals or parabens
    Format Gummy
    No. Live Cultures 5 billion
    Added Ingredients Vitamin D
    FOS fibres
    Recommended Use 1 gummy daily
    Age Range Adult
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  • Delivery & returns

    UK Delivery

    Free UK Delivery over £40 
    Free standard UK delivery is automatically applied at the checkout when you spend £40.

    Standard 2nd class: £2.50
    Allow 4-10 working days (Monday - Friday) for delivery

    1st class: £3.95
    Allow 1-3 working days (Monday - Friday) for delivery

    Express Next Day (Tracked): £6.95 (Dispatching Friday 30th December)
    Order before 2pm for 1-2 working day delivery to most of the UK*. Orders placed on Friday will be delivered on Monday (next working day). Requires signature.
    Please be aware of Christmas Bank holidays.

    Shipments will be dispatched via DHL or FedEx, the service will be selected depending on the delivery location.

    *Express delivery may exclude the Channel Islands, Herm Island, Isle of Man, Isle of Wight, Northern Irish postcodes BT18 & upwards, Sark, Scottish borders and offshore and a small number of remote mainland destinations as determined by our delivery courier. 

    Good to know

    • We'll send you an email to confirm once your parcel has been dispatched.
    • For delivery queries, please call us on +44 (0)1264 339 770 or email
    • Orders placed before 2pm are typically dispatched on the same working day.
    • Delivery within the UK and Northern Ireland has a fixed price, regardless of the size and weight of your order. 
    • Delivery times are estimates and not guaranteed unless otherwise stated.

    International Delivery

    We offer an excellent worldwide delivery service. For more details, 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

Optibac Adult Gummies are completely natural live cultures supplements with no added sugar. At less than 8 calories each, you can easily make room for them in any calorie-controlled diet, safe in the knowledge that every gummy is bursting with healthy goodness!

Choose friendly bacteria gummies with natural ingredients and no added sugar, containing highly researched strains (1,2), such as Bacillus coagulans Unique IS-2. You can find this strain in delicious Optibac Adult Gummies, which are also vegan, dairy, and gluten-free, so are suitable for everyone!

(1). Madempudi, R. et al. (2020) ‘Bacillus coagulans Unique IS2 in Constipation: A Double-Blind, Placebo-Controlled Study’, Probiotics and Antimicrobial Proteins, 12, pp. 335–342. (2).Madempudi, R. S. et al. (2019) ‘Randomized clinical trial: the effect of probiotic Bacillus coagulans Unique IS2 vs. placebo on the symptoms management of irritable bowel syndrome in adults’, Scientific Reports, 9(1). doi: 10.1038/s41598-019-48554-x.
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If you choose a highly researched gummy supplement like Optibac Adult Gummies, you can take it whenever it suits you. These friendly bacteria and vitamin gummies don’t require refrigeration and can be taken with or without food.

It’s not possible to overdose on live cultures supplements (your gut naturally contains trillions of friendly bacteria!) but if taking multivitamin gummies like Optibac Adult Gummies with added Vitamin D, Calcium, and Zinc, it’s best to stick to the recommended intake of one gummy daily, especially if you take several different vitamin and mineral supplements each day.

Friendly bacteria supplements in capsules or powders typically contain Lactobacilli or Bifidobacteria, whereas gut gummies use heat-resistant friendly bacteria like Bacillus coagulans Unique IS-2 (1,2). Because they taste like yummy ‘sweets’, people often wonder if gummies are as good as capsules or powders, but if you buy from a trusted company, you can be sure the ingredients and friendly bacteria strains are of the highest quality.

1. Ahire, J. J., Neelamraju, J. and Madempudi, R. S. (2020) ‘Behavior of Bacillus coagulans Unique IS2 spores during passage through the simulator of human intestinal microbial ecosystem (SHIME) model’, LWT, 124, p. 109196. doi: 10.1016/j.lwt.2020.109196. 2. Bernardeau M, Lehtinen MJ, Forssten SD, Nurminen P. Importance of the gastrointestinal life cycle of Bacillus for probiotic functionality. J Food Sci Technol. 2017;54(8):2570-2584. doi:10.1007/s13197-017-2688-3
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Adult Gummies (30 gummies) - 30 gummies Every Day (30 capsules) - 30 capsules Immune Support (30 capsules) - 30 capsules Every Day EXTRA (30 capsules) - 30 capsules
Suitability Digestive & Immune Health General Digestive Immune Health General Digestive
Format Gummies Capsules Capsules Capsules
Billions/CFU 5 billion 5 billion 5 billion 20 billion
With FOS/Prebiotic
Added Nutrients Vitamin D, Calcium, Zinc Vitamin C
RRP £12.99 £12.99 £12.99 £24.99