Gut health
Supplements for everyday digestive comfort: live bacteria, prebiotic fibre, digestive enzymes and soothing plants. We explain which form fits which complaint, why dosage is measured in grams or CFU, and how long to give it.Read more →
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Choosing digestive health supplements that match your complaint
Your gut does two jobs at once. It breaks food down, and it houses trillions of bacteria. Most people browsing this category are not ill. They notice bloating after certain meals, irregular bowel habits, or a stomach that reacts to travel, antibiotics or a stressful week. So the useful question is not which product is strongest, but which of those two jobs needs support: everyday digestive comfort or the bacteria themselves.
Four groups, four different jobs
- Live bacteria (probiotics): these add specific strains, counted in CFU (colony forming units, the number of living bacteria per dose). Effects are tied to the exact strain, so the strain name on the label tells you more than the billions do.
- Prebiotic fibre: food for the bacteria you already have. Chicory inulin contributes to normal bowel function by increasing stool frequency, at 12 g per day.
- Digestive enzymes: they help break food down. Lactase, for example, improves the digestion of lactose in people who have trouble digesting it.
- Soothing plants and binders: peppermint, ginger, artichoke and activated charcoal, which contributes to reducing excessive flatulence after eating when you take 1 g at least 30 minutes before a meal and 1 g after.
Those differences show up on the label. Fibre works in grams, so a prebiotic dosed in milligrams cannot reach the amount linked to bowel function. Enzymes are measured in activity units such as FIP, ALU or HUT. A label that only gives milligrams tells you nothing about how much work the enzyme can actually do. With live bacteria supplements, the strain name and a guarantee of live cultures until the end of shelf life matter more than a headline CFU number.
How we build this selection
We stock what we can explain. For live bacteria that means named strains, a count guaranteed to the end of shelf life, and capsules that survive stomach acid. For fibre it means gram doses, not a sprinkle. For enzymes it means activity units on the label. We buy directly from the brands, so what you receive is authentic, and every product passes our compliance team before it goes live. We test products ourselves and independent labs spot-check batches. More than ten years of doing this taught us that a shorter, well explained list serves you better than shelves of near-identical formulas. You can read how we select brands and products in more detail.
This category suits you if you want to work on digestion in a targeted way: after a course of antibiotics, during travel, on a low-fibre diet, or when one food group keeps causing trouble. It is not a replacement for food. Thirty grams of fibre a day from vegetables, pulses and wholegrains does more for most people than any capsule. If your interest is the bacteria rather than the symptoms, gut microbiome balance is the logical next step.
Be realistic about timing. Give a live bacteria product or a fibre two to three weeks of daily use before you judge it, and keep the rest of your diet stable so you can tell what changed. Extra wind in the first few days is common when you add fibre or new strains, so build up slowly rather than starting at the top dose. Ongoing pain, blood in your stool or unexplained weight loss belong with your GP, not with a supplement.
Frequently asked questions
What do gut health supplements actually do?
They support one of two things: digestion itself, or the bacteria living in your gut. Enzymes help break food down. Prebiotic fibre feeds the bacteria you already have. Live bacteria add specific strains. Plants such as peppermint or ginger are used for comfort after eating. None of them replaces a varied diet with enough fibre and fluid, but they can give one part of the system focused support while you work on the rest.
Should I choose probiotics, prebiotics or digestive enzymes?
Start from the complaint, not the product. If food feels heavy or one food group causes trouble, digestive enzyme products are the closest fit. If your rhythm is irregular, fibre comes first. If something disrupted your gut bacteria, live bacteria make more sense.
| Type | What it does | Suits you if |
|---|---|---|
| Live bacteria | Adds named strains | After antibiotics or travel |
| Prebiotic fibre | Feeds your own bacteria | Rhythm is irregular |
| Enzymes | Helps break food down | Heavy feeling after meals |
| Soothing plants | Comfort after eating | Wind or a full stomach |
How long before I notice a difference?
Plan for two to three weeks of daily use before you judge a live bacteria product or a fibre. Enzymes work per meal, so you notice those the same day or not at all. Keep the rest of your diet stable during those weeks, otherwise you cannot tell what changed. If nothing has shifted after about six weeks, the product or the group is probably not the right one for you.
When is the best time to take them?
It depends on the group. Enzymes go with the meal, or just before it, because they need to meet the food. Live bacteria are usually taken at a fixed moment each day, often with a meal or with water. Fibre needs plenty of fluid, so spread it through the day. Activated charcoal is the exception: it binds things, so keep at least two hours between it and medicines or other supplements.
Can I take live bacteria while I am on antibiotics?
Many people do, and the usual approach is to leave a few hours between the antibiotic and the supplement so the two do not meet at their peak. Continue for a few weeks after the course, because that is when your gut bacteria are re-establishing. Antibiotics are prescription medicines, so check with the prescriber or pharmacist first. We do not claim a supplement prevents or treats anything related to the course.
How much fibre should I get each day?
UK guidance sets 30 g a day for adults, with lower amounts for children. Most people in the UK fall short, which is why a prebiotic can help, but food does the heavy lifting.
| Age | Fibre per day |
|---|---|
| 2 to 5 years | 15 g |
| 5 to 11 years | 20 g |
| 11 to 16 years | 25 g |
| 17 years and over | 30 g |
Do live bacteria supplements need to be kept in the fridge?
Only if the label says so. Some strains are freeze-dried and stable at room temperature, others hold their count better when chilled. The number that matters is the count guaranteed at the end of shelf life, not the count at production, because that figure already accounts for normal storage losses. Whatever the form, keep the pack closed, dry and away from heat, and follow the storage line on the pack.
Are gut supplements suitable during pregnancy or for children?
Some are made for children and come as sachets or chewables at lower doses, which is safer than splitting an adult capsule. During pregnancy and breastfeeding, check with your midwife, GP or pharmacist before starting anything new, especially herbal products and higher-dose fibre. If you take regular medication, mention it too, since binders such as activated charcoal and bulk fibres can affect how a medicine is absorbed.
Does a higher CFU count mean a better probiotic?
Not by itself. A dose of 50 billion of an unnamed blend tells you less than 5 billion of a strain that has been studied at that dose. Effects in research are tied to the specific strain, written as genus, species and strain code, for example Lactobacillus rhamnosus GG. So look for three things: the full strain name, the count guaranteed to the end of shelf life, and a dose that matches how the strain was studied. That is what we check before stocking one.
