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Prebiotics Aren’t Bad—But They’re Not for Everyone
Many with long-standing digestive issues can actually feel worse on prebiotics. Here's why—and what I recommend instead.

Hi, it’s Dr. Lorn,
Todays email is a short one but its because I’ve recently had a number of people ask me about prebiotics—and whether they’re a good idea for gut health.
While prebiotics can be helpful, they’re not always the right starting point. Most of the patients I work with are dealing with long-standing digestive issues—bloating, discomfort, bacterial overgrowth—and what I’ve found is that prebiotic supplements often make their symptoms worse.
In these cases, adding fermentable fiber to an already disrupted gut can feed the wrong microbes and aggravate inflammation. That’s why I rarely recommend prebiotics right away.
Instead, I typically:
Focus on rebalancing gut flora first, food choices here are critical but are individually dependent. Such as reducing fiber altogether to rebuild strong gut flora and avoid high fiber symptoms.
Typically the best results I have seen are by keeping the diet plain, avoiding and /or reducing dairy and grains temporarily.
If I do recommend a supplement, it’s usually Digestive enzymes or something with DGL, L-glutamine and other ingredients that soothe and establish a strong floral base., and only in select cases
Avoid high-dose fiber blends and high fiber food choices unless it is crystal clear it is necessary.
This isn’t to say prebiotics are harmful across the board—some practitioners use them successfully. But with my patient base, timing and personalization sometimes matter more than current health trends.
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