Probiotics have developed an excellent reputation.
They are commonly recommended to improve digestion, support the gut microbiome, strengthen immune function, or help restore the intestinal environment after antibiotics.
And yet, some people start taking probiotics… and actually feel worse.
Bloating, gas, abdominal discomfort, changes in bowel movements, and sometimes constipation can occur.
So how can something that is supposed to support your gut sometimes make your symptoms worse?
Your gut microbiome is an ecosystem
Your gut is home to an enormous community of microorganisms, including bacteria, viruses, fungi, and other microbes that constantly interact with one another and with your body.
This ecosystem plays a role in digestion, the production of certain vitamins, immune function, and communication between the gut and the brain.
But everyone’s microbial ecosystem is different.
Taking probiotics, therefore, isn’t simply a matter of adding “good bacteria” to replace the “bad” ones.
Think of your microbiome as a garden.
If the soil is healthy and balanced, new plants may thrive.
But if the soil itself has become profoundly disrupted, simply adding more plants may not solve the underlying problem.
Why do some people feel worse on probiotics?
When the digestive system is already disrupted, introducing additional microorganisms can sometimes temporarily increase fermentation, gas, or bloating.
But the more important question is why the digestive system became imbalanced in the first place. “I Don’t Know What to Eat Anymore”: When Digestive Problems Lead You to Eliminate More and More Foods
Many factors can contribute: diet, chronic stress, gastrointestinal infections, medications, antibiotics, altered bowel movements, impaired digestion, and changes in the intestinal environment.
This is why two people with apparently similar symptoms may respond very differently to the same probiotic.
Not all probiotics are the same
The word “probiotic” actually covers a very large variety of microorganisms.
The effects of a probiotic depend in part on the specific strain, the amount taken, and the individual taking it.
Two products containing apparently similar species can therefore have different effects.
This is an important distinction: there is no single universal probiotic that is appropriate for every digestive disorder or every person.
What if we’re asking the wrong question?
When someone has been struggling for months or years with bloating, constipation, diarrhea, reflux, or digestive discomfort, perhaps the first question shouldn’t be:
“Which probiotic should I take?”
But rather:
“Why has my digestive system become imbalanced?”
That is a fundamentally different approach.
Until we understand what is driving the problem, we may simply keep adding supplements without addressing what is actually maintaining the digestive imbalance.
Probiotics can be valuable allies
None of this means that probiotics are bad.
When appropriately selected and used at the right time, they can be valuable in certain situations.
But “taking probiotics” is not, by itself, a complete therapeutic strategy.
After 38 years in practice, this is precisely what I seek to understand with my patients: not only what symptoms they are experiencing, but what may have caused their digestive system to lose its balance in the first place.
From there, we can build a truly individualized approach.
Are you struggling with persistent digestive problems and no longer know what to try?
Béatrice Levinson
Naturopath – specialist in the gut-brain connection and chronic digestive disorders
38 years of experience
