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Supplement for when you're on Antibiotics & for Travel
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Antibiotics 3_93e41884-11a0-4926-9bb7-93cfaef43641
Supplement for when you're on Antibiotics & for Travel
Supplement for when you're on Antibiotics & for Travel
Antibiotics 6

Supplement for when you're on Antibiotics & for Travel

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What is it?

It may come as no surprise to you that taking antibiotics can affect your gut microbiome. But did you know that there are things you can do to help?

SMART STRAINS® for when you’re on antibiotics is specially formulated with LGG® – the world’s most documented bacterial strain. LGG® is recommended by the WGO guidelines on probiotics and leading paediatric guidelines, for when you’re on antibiotics. So, it’s science you can trust.

Each capsule provides 10 billion live Lactobacillus rhamnosus, LGG®, replicating the exact bacterial formula and dose used in clinical trials.

Why choose SMART STRAINS?

Probiotic science has evolved, and SMART STRAINS® is leading the live bacteria revolution. Formulated by The Gut Health Doctor®, SMART STRAINS® is a family of targeted live bacteria supplements using evidence-based live bacterial strains, which are backed by international health bodies.

The notion that all live bacteria have similar effects, and that you should take one daily for your health is outdated. Each type of bacteria, known as a ‘strain’, serves a unique purpose, and works best when taken in the right dose and format, to make a meaningful difference.

Just as you wouldn’t take an iron supplement for a vitamin D deficiency, the latest gut microbiome science tells us how important it is to get specific - we should be taking the right strain, at the right time, in the right way.

Who is it for?

Suitable for children and adults over 4 years of age undergoing treatment with antibiotics. SMART STRAINS® for when you're on antibiotics is vegan friendly, dairy & gluten free and contains no added sugars, sweeteners, flavours or preservatives. Suitable in pregnancy.

How to take?

Starting on the first day of antibiotic treatment, take daily for the duration of the course and continue for 7 days after treatment has ended. Suitable from 4 years of age.

Swallow each capsule whole with a glass of water. For children, open capsule and mix content into cold food or non-fizzy drinks. Preferably take 2 hours apart from antibiotics.

For children and adults from 4 years of age: 2 capsules per day (ideally morning and evening). Provides the recommended[sup]†[/sup] 20 billion live LGG[sup]®[/sup].

What's in it?

Ingredients per daily dose - 20 billion live bacteria (20x10[sup]9[/sup]): Lactobacillus rhamnosus LGG[sup]®[/sup], Fructooligosaccharide fibre, anti-caking agent: vegetable magnesium stearate. Vegetable capsule: hypromellose, calcium carbonate.

Delivery and returns

Get free Royal Mail tracked 24-hour delivery on all orders over £30.

For orders below £30, you can choose between Royal Mail tracked 48 (for an additional £2.99) or Royal Mail tracked 24 (£3.99).

Monday - Friday same day dispatch on orders placed before 1pm. Saturday same day dispatch on orders placed before 11am. Any orders placed after these times will be dispatched on the following weekday.

Currently we are only able to deliver across the UK and its territories. But please register your interest and we’ll let you know as soon as international shipping is available.

Standard delivery times are:
Royal Mail Tracked 48 - 2-3 working days (subject to Royal Mail Terms and conditions)
Royal Mail Tracked 24 - The next working day (subject to Royal Mail Terms and conditions)

We are unable to guarantee these delivery times, and they may differ depending on the time of the year (see here for more information)

Antibiotics, travel & disrupted routines can affect your gut microbiome.


Targeted support with live bacteria LGG® – the world’s most researched bacterial strain – scientifically formulated for your gut, so you can get on with your daily life. 

Dr Megan Rossi offering a pack of SMART STRAINS for when you're on antibiotics to you
Image of mother and daughter carrying prescription of antibiotics from the pharmacy
Holding a capsule of SMART STRAINS for when you're on antibiotics over the blister pack

How SMART STRAINS® works

Specifically designed with the science in mind

  • The Right Strain

    Lactobacillus rhamnosus, LGG® is the most scientifically researched bacterial strain in the world. Scientifically proven and specifically recommended by the World Gastroenterology Organisation Guidelines on Probiotics, for those on antibiotics.

  • The Right Time

    Starting on the first day of antibiotic treatment, take daily for the duration of the course and continue for 7 days after treatment has ended or until you finish the pack.

  • The Right Way

    Directions: Swallow each capsule whole with a glass of water. For children, open capsule and mix content into cold food or non-fizzy drinks. Preferably take 2 hours apart from antibiotics.
    Dosage: For children and adults from 4 years of age: 2 capsules per day (ideally morning and evening). Provides the recommended 20 billion live LGG®.

Read the Science

We're not like other live bacteria supplements for when you're on antibiotics. Here's why.

    SMART STRAINS® for when you're on Antibiotics & for Travel

    Bacterial strain backed by World Gastroenterology Organisation (WGO) guidelines on probiotics
    Contains the worlds most scientifically research bacterial strain, LGG
    Provides the exact dose of LGG recommended by the WGO for those on antibiotics
    Formulated by a leading scientist with an award-winning PhD in probiotics
    No added sugars, sweeteners, emulsifiers, bulking agents, flavours or preservatives
    Suitable during pregnancy

    Other Probiotic for antibiotics

    Bacterial strain backed by World Gastroenterology Organisation (WGO) guidelines on probiotics
    Contains the worlds most scientifically research bacterial strain, LGG
    Provides the exact dose of LGG recommended by the WGO for those on antibiotics
    Formulated by a leading scientist with an award-winning PhD in probiotics
    No added sugars, sweeteners, emulsifiers, bulking agents, flavours or preservatives
    Suitable during pregnancy

70

%

of regular users of live bacterial supplements find it difficult to choose the right supplement

60

%

of people do not check the specific bacterial strains they are buying

51

%

are unaware that different probiotic strains treat different conditions

We’re Credible.

We’re Trusted.

We’re Trailblazers.

If you’re confused about live bacterial supplements, you’re not alone. That’s where SMART STRAINS® steps in. We’re here to the bring clarity and education.[sup]1[/sup]

Read the Science

The Right Strain

The Right Time

The Right Way

Dr Megan Rossi The Gut Health Doctor

Formulated by Dr Megan Rossi The Gut Health Doctor®

The Gut Health Doctor®, Dr. Megan Rossi (PhD, RD) is a leading dietitian, nutritionist, and gut health authority with an award-winning PhD in probiotics. With SMART STRAINS®, she is revolutionising how people take live bacteria to care for them and their families, one strain at a time.

Read the Science

Customer Reviews

Don't just take our word for it, here's what customers are saying about SMART STRAINS®

Probiotic supplement designed for antibiotic use. Customers report "no tummy issues," reduced bloating, and faster gut recovery. "A lifesaver!" said one reviewer. Prevents digestive upset, fatigue, and thrush. One shopper noted frequent toilet visits. Science-backed strains with clear instructions. Fast delivery. Highly recommended for gut protection during antibiotic courses.

  • 5 stars: 46 (94%)
  • 4 stars: 3 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anji B.

Great product, well-priced. Arrived quickly, which was appreciated as I was just about to start a course of antibiotics.
100% recommended

D
Dan M.
Great product!

Great product!

K
Kate
Game changer for someone with IBS

I've had IBS-D for years and have never found anything that works to settle my stomach, especially when I'm dealing with a flare up. I tried this after a friend recommended and I'm so glad I did. Now I can make plans, go out for dinner and live life without always thinking about where the closest toilet is and if I can go at all.

M
Mary B.
Definitely worked for me!

Took these alongside the one for the vaginal microbiome having had dental treatment that required seven days of antibiotics. I have a sensitive digestive system and in the past antibiotics have caused digestive problems and vaginal thrush so I was very keen to avoid the same thing happening again. I was so pleased that all was fine, no bloating, tummy pains or upset tummy and no thrush! Thank you :)

N
Nesta M.
Easy to order. Hoping they

Easy to order. Hoping they will give me the protection I need

K
Kate G.
Great taste

Great taste

V
Vanessa K.
Definitely helped my gut get

Definitely helped my gut get back to normal, after being very Ill and on several antibiotics all at once!!

V
Vicky W.
Really settled her tummy

My 6 year old is on antibiotics for 2+ months - within the first day her tummy was shot to pieces . Starting these and everything’s calmed down .

L
Leila
Looking after my microbes

I am not a fan of antibiotics but recently was put on them for good reason. I researched and found Smart Strains and had heard of Dr Rossi before so was keen to get onto these to counteract the antibiotics. I have been feeling good and mentally feel better that I am still looking after my microbes even when on antibiotics.

R
Ryan
Frequent Flyer

I travel a lot for work and while I'm away I cant afford any sick days. Smart strains was recommended to me by a colleague. I have been taking them for 3 months now while travelling and haven't been sick once. I reckon my workplace should start supplying these to all workers before travel:wink:. Much more economical than missed or unproductive international meetings.

S
Sue
No bad side effects while taking antibiotics

My husband had to take a course of antibiotics.
His GP recommended he take a probiotic as he had previously had some bad side effects .
After reading such positive reviews we decided on Smart Strains.
Thankfully he didnt have any bad side effects on the antibiotics this time.

O
Orla
So impressed

A friend recommended Smart Strains to me because I usually end up with terrible gut issues after antibiotics. I took them recently and what a difference! My stomach stayed pretty settled and I felt fine once I finished the course. Really impressed, definitely be buying again if I ever need.

T
Tom
Bought for my granny

Saved her gut during her third course of antibiotics this year. Will use again

R
RMD3
Perfect travel companion!

I usually struggle with gut issues when I travel, but I took this on my recent trip and didn't have any issues. Will be taking for all future trips!

E
Ella
Great for Travel!

I was a bit nervous before traveling due to having a sensitive stomach. I took the antibiotic and immunity smart strains during my trip which worked wonders! Would buy again!

H
Henrik P.
Trustworthy probiotics

Very reassuring to be able to take science based probiotics I trust during a course of antibiotics. Incredibly pleased with these! Thanks Megan!

E
Elizabeth T.
Great support for gut whilst on antibiotics

I recently had to take a course of antibiotics for a UTI. Previously when I've taken antibiotics I've experienced gut issues but haven't had any whilst taking Smart strains so very happy!

A
Amanda H.
Long term antibiotics

I have to take antibiotics long term and now I supplement with smart strains I do not get any adverse gut symptoms which is a huge relief to me.

S
Sarah T.
Really helped me get my

Really helped me get my gut microbiome back on track after taking antibiotics

L
Louisa M.
Smart Strains were recommended to

Smart Strains were recommended to me by an NHS specialist dietician. I bought both the Antibiotics strains after having a strong course for H Pylori, and the Vaginal strains for good measure, and found them both great! They reduced my gastro issues, and I have no odours. I will definitely be ordering more.

S
Shelagh
Exactly what I've been looking for

Constantly worried about the impact of antibiotics and now I don't have to! Exactly what I've been looking for 10/10 would recommend

H
Helen C.
High quality supplement which I

High quality supplement which I purchased following respiratory infection and course of antibiotics. Really impressed with the clear instructions and easy to use packaging so you can take it with you for work/travel. Would recommend.

A
Anne N.T.
I have been taking them

I have been taking them now for two weeks after being on antibiotics for a long time and I am beginning to feel better within myself

S
Steve M.
Reduced gut discomfort.

My gut symptoms were definitely calmer than usual after taking, following yet another course of antibiotics. Will buy again.

A
Alison C.
Have taken these bacterial supplements

Have taken these bacterial supplements with and after taking antibiotics and found them helpful in re- balancing my gut bacteria. The only negative side was frequent visits to the toilet!

H
Hannah A.
Very effective, no digestive issues

Very effective, no digestive issues while on antibiotics

D
Diana A.
Have helped settled stomach

definitely helped to settle my husbands stomach when he was on antibiotics for a month, ordering more now for, hopefully, his last lot of antibiotics for a while!

L
Lucy D.
have been on a double

have been on a double dose of antibiotics for 6 months and since i have been taking these they have been helping with my bloating and overall mood so much, will be buying again.

A
Andrew R.
Definite improvement in my gut

Definite improvement in my gut and general sense of wellness after antibiotics.

M
Mihaela T.
The best probiotic I ever tried

It’s my second time that I purchased smart stains when you are on antibiotics and works perfectly. I recommend!

K
Kate R.
I have been taking this

I have been taking this formula to try and protect my microbiome following a course of antibiotics. As yet I have not felt any benefits, however, it is reassuring to know that this strain has protected my gut flora throughout my treatment.

C
C94
Noticed a real difference after taking antibiotics

I'd recently been prescribed antibiotics and was dreading taking them. However I’d read about the LGG strain and how it helps prevent tummy troubles during antibiotics, so thought I’d give it a go. Within a few days I felt so much better than previous times taking antibiotics !! Less bloated, more energy and everything just started to feel normal again sooner. Really glad I tried it.

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Our range of scientifically-proven formulations are targeted at specific everyday needs that affect every member of the family. From immune support to fussy babies, our range provides the right strain, at the right time, in the right way to care for you and your family.

References

1. Data on File. January 2025. Opinium Research - Independent Survey of 2000 people reflective of the UK population