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Description

GS-01 is a daily synbiotic supplement combining five live bacterial cultures, prebiotic FOS fibre, and Vitamin C. Vitamin C contributes to normal function of the immune system and to the protection of cells from oxidative stress.

Ingredients

Synbiotic Blend (Maltodextrin, Lactobacillus bulgaricus, Lactobacillus acidophilus, Lactobacillus helveticus, Streptococcus thermophilus, Bifidobacterium bifidum, Fructooligosaccharides), Bulking Agent (Microcrystalline Cellulose), Capsule Shell (Hydroxypropylmethylcellulose), Ascorbic Acid, Anti-caking Agent (Magnesium Stearate).

Suitable for vegetarians and vegans.

Nutritional Information

Per 2 capsules:
Vitamin C = 74mg (93% NRV*)
Live Cultures = 12 billion CFUs**
Lactobacillus bulgaricus
Lactobacillus acidophilus
Lactobacillus helveticus
Streptococcus thermophilus
Bifidobacterium bifidum

*NRV = Nutrient Reference Value
**No nutrient reference value established
CFUs = Colony Forming Units

How to Take

Take two capsules per day, ideally with food and at different times (e.g. one in the morning and one in the evening).

Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

If you are pregnant or breastfeeding, taking any medication or under medical supervision, please consult a doctor or healthcare professional before use. Discontinue use and consult a doctor if adverse reactions occur.

Allergy advice: None known

Store in a cool, dry place that is out of sight and not within reach of young children. Please recycle glass bottle and lid separately.

Stride GS-01

Synbiotic gut health supplement

Daily synbiotic blend with 12 billion live bacteria, prebiotic fibre and Vitamin C

Excellent   Star Star Star Star Star  
Rated 4.9 out of 5 (405 Reviews)

Daily synbiotic blend of live bacterial cultures, prebiotic fibre and Vitamin C.

  • Synbiotic formula with 5 clinically studied probiotic strains and prebiotic FOS fibre
  • 12 billion CFUs per dose, plus prebiotic FOS fibre, to feed your gut microbiome
  • Contains Vitamin C, which contributes to normal function of the immune system
  • Just two capsules daily - suitable for vegetarians and vegans

Stride GS-01 (Monthly Subscription)

Delivery every 4 weeks. Pause or cancel anytime.

£0.60/day

£22.50 £16.88

Stride GS-01 (Quarterly Subscription)

Delivery every 12 weeks. Pause or cancel anytime.

£0.58/day

£63.75 £48.45

Stride GS-01 (One Month Supply)

4 week supply.

£0.78/day

£29 £21.75

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Description

GS-01 is a daily synbiotic supplement combining five live bacterial cultures, prebiotic FOS fibre, and Vitamin C. Vitamin C contributes to normal function of the immune system and to the protection of cells from oxidative stress.

Ingredients

Synbiotic Blend (Maltodextrin, Lactobacillus bulgaricus, Lactobacillus acidophilus, Lactobacillus helveticus, Streptococcus thermophilus, Bifidobacterium bifidum, Fructooligosaccharides), Bulking Agent (Microcrystalline Cellulose), Capsule Shell (Hydroxypropylmethylcellulose), Ascorbic Acid, Anti-caking Agent (Magnesium Stearate).

Suitable for vegetarians and vegans.

Nutritional Information

Per 2 capsules:
Vitamin C = 74mg (93% NRV*)
Live Cultures = 12 billion CFUs**
Lactobacillus bulgaricus
Lactobacillus acidophilus
Lactobacillus helveticus
Streptococcus thermophilus
Bifidobacterium bifidum

*NRV = Nutrient Reference Value
**No nutrient reference value established
CFUs = Colony Forming Units

How to Take

Take two capsules per day, ideally with food and at different times (e.g. one in the morning and one in the evening).

Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

If you are pregnant or breastfeeding, taking any medication or under medical supervision, please consult a doctor or healthcare professional before use. Discontinue use and consult a doctor if adverse reactions occur.

Allergy advice: None known

Store in a cool, dry place that is out of sight and not within reach of young children. Please recycle glass bottle and lid separately.

  • 12 billion CFUs per dose
  • Vegetarian/Vegan
  • Contains clinically studied prebiotics
  • Advanced synbiotic formula
Live cultures plus prebiotic FOS fibre
Live cultures plus prebiotic FOS fibre

The synbiotic formula combines pre- and probiotics in one daily dose: 5 carefully selected live bacterial cultures, plus prebiotic FOS fibre that serves as food for them.

Five live cultures, plus FOS fibre
Five live cultures, plus FOS fibre

GS-01's formula combines five bacterial strains — Lactobacillus bulgaricus, Lactobacillus acidophilus, Lactobacillus helveticus, Streptococcus thermophilus and Bifidobacterium bifidum — with prebiotic FOS fibre into one daily capsule pair.

Vitamin C and immune function
Vitamin C and immune function

Each dose delivers 74mg of Vitamin C, which contributes to normal function of the immune system and to the protection of cells from oxidative stress.

Immune function
Immune function

GS-01 contains 74mg of Vitamin C per serving — Vitamin C contributes to normal function of the immune system.

Live cultures and prebiotic fibre
Live cultures and prebiotic fibre

GS-01 combines Lactobacillus and Bifidobacterium strains with prebiotic FOS fibre — a synbiotic blend designed to nourish your gut microbiome.

How Stride GS-01 works

Supporting your microbiome and gut health has never been easier.

1
Select your MS-01 supply
Select your GS-01 supply

Choose a one-time purchase or subscription for your GS-01 synbiotic supplement.

2
Select your MS-01 supply
Complete your order

Proceed to checkout and finalise your purchase for quick delivery.

3
Select your MS-01 supply
Consistent daily use

Take two capsules daily with food.

"GS-01 is a synbiotic supplement, which means it contains both probiotics (beneficial live bacteria) and prebiotics (fibre that feeds these bacteria) in one convenient formula. This synergistic combination helps the beneficial bacteria flourish in your gut to support a healthy microbiome. Remember that supplements work best alongside a varied, whole food diet rich in natural fiber and nutrients."

Bianca Van Aswegen

Dietetics Expert @ Stride

Our ingredients.

Two capsules contain Amount per serving % NRV*
Vitamin C 74mg 93
Live Cultures
Lactobacillus bulgaricus
Lactobacillus acidophilus
Lactobacillus helveticus
Streptococcus thermophilus
Bifidobacterium bifidum
12 billion CFUs **

* NRV = Nutrient Reference Value
** = No nutrient reference value established
CFUs = Colony Forming Units

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For the curious.

What is GS-01, and how is it different from a standard probiotic?

GS-01 is a synbiotic formula - meaning it combines both probiotics (beneficial bacteria) and prebiotics (the fibre that feeds them) - with added vitamin C for immune and antioxidant support. While probiotics focus solely on adding bacteria, GS-01 also supports those bacteria once they reach your gut by providing fructooligosaccharides (FOS), helping the new beneficial strains thrive and promoting long-term balance in your microbiome.

Who is GS-01 suitable for?

GS-01 is designed for anyone looking to support their gut health - whether you’re managing ongoing digestive issues or simply want to feel more balanced day to day. It’s suitable for vegetarians and vegans, and fits easily into a broader health routine. If you’re pregnant, breastfeeding, or have an existing medical condition, we always recommend speaking with your doctor before starting any new supplement.

What can I expect while taking GS-01?

Everyone’s gut is different, but many people notice improvements in digestion, less bloating, and more consistent energy within the first few weeks. Over time, you may also feel benefits to your immunity, mood, and even weight management. As with all supplements, the key is consistency - small changes, repeated daily, lead to bigger results.

When should I take GS-01, and how long does it take to work?

Take two capsules daily, ideally with food. It is not necessary to take each capsule at different times of the day, although this may be beneficial in discovering what timing feels best for you. Once established try to stick to your routine, as consistency is important. Many people begin to notice small improvements within 2-4 weeks, but the real benefits come with consistent, longer-term use. Think of it as a daily investment in your health.

What are CFUs?

CFU stands for colony-forming unit - a measure of the number of live, active bacteria in each dose. GS-01 delivers 12 billion CFUs daily from five clinically studied strains, providing reliable, effective gut support you can feel.

Can I take GS-01 with other supplements or medications?

Yes, GS-01 can be taken alongside most other supplements and medications. If you're on prescription medication or have a medical condition, we always recommend speaking to your doctor or healthcare provider before starting any new supplements.

Do I need to take a StrideBiome test first?

It’s not necessary to take a StrideBiome test first, although this may provide a useful benchmark to understand how GS-01 is working for you. Repeating your StrideBiome test every 4-6 months can help you track your progress and determine what works best. Of course, GS-01 works well as a standalone gut support supplement too!

Is GS-01 safe for long-term use?

Yes - GS-01 is formulated for ongoing daily use. Probiotics and prebiotics work best when taken consistently, and long-term use can help support a balanced, resilient microbiome over time.

Can GS-01 help with bloating or IBS?

GS-01 is designed to support overall gut balance, which can help ease common symptoms like bloating, irregularity, and discomfort. Whilst it is not a treatment for IBS, many customers with sensitive digestion find synbiotics like GS-01 can be helpful when used consistently. Always consult your healthcare provider for medical advice.