There’s a lot of talk about supplements in IBD
Some of it is grounded in research.
Some (OK, most) of it is not.
So it can be tough—for both providers and patients—to know what’s actually worth trying.
What I see most often in conventional medicine is a tendency to shut any conversation about supplements down quickly.
Saying things like:
“There’s no evidence to support that supplement in IBD, so don’t bother taking it.”
Or recommending that someone stop a supplement without even asking if they feel it’s helping.
A lack of evidence doesn’t mean a lack of benefit
Often, it just means the research is limited—and not always easy to apply in real life.
And when it comes to supplements in IBD, there are several reasons for that.
Why supplement research in IBD is so challenging
Even when studies exist, they often don’t translate easily into clinical practice.
Here’s why:
- Lack of standardization
Different formulations, doses, and durations make it hard to compare results - Quality and purity vary
Supplements aren’t regulated the same way medications are - Small or inconsistent studies
Many trials are underpowered or show mixed results - Symptom vs. inflammation mismatch
Improvements in symptoms don’t always reflect underlying disease activity - Individual variability
What helps one person may not help another
All of this makes it difficult to draw clear conclusions.
So if we wait for perfect evidence…
We’ll be waiting forever—and potentially overlooking something that might actually help.
A more practical way to evaluate supplements
Instead of getting stuck on:
“Is there strong evidence?”
I use a simple framework based on two questions:
👉 Is it safe?
👉 Is it effective?
That’s it.
This shift allows for more practical, individualized decision-making—especially in a space where perfect evidence doesn’t exist.
The supplement decision framework
I’ve found this algorithm incredibly helpful in guiding supplement decisions in a real-world, clinical setting.
Ref: McClafferty H, Brown M et al. Pediatrics doi:10.1542/peds.2017-1961 Reprinted with permission from Kemper KJ, Cohen M. Ethics meet complementary and alternative medicine: new light on old principles. Contemp Pediatr. 2004;21(3):61
At a high level, it helps categorize supplements into four groups:
- Safe + effective → Recommend
- Safe + unclear benefit → Reasonable to try (with guidance)
- Not safe + effective → Monitor closely or reconsider
- Not safe + not effective → Discourage
What this looks like in practice
Instead of immediately shutting something down, we can:
- Ask whether it’s safe
- Explore whether the person is noticing a meaningful benefit
- Draw on clinical experience with similar patients
- Consult with other providers when needed
- Monitor over time and reassess
It also helps identify when it’s time to stop something that isn’t helping.
Supplements are tools—not the foundation
Supplements can be useful tools—but they’re exactly what their name suggests: supplements.
They’re meant to add to a strong nutrition foundation, not replace it.
Because at the end of the day, all the supplements in the world can’t make up for an overall pattern that isn’t supporting health.
The bottom line (for providers)
When it comes to supplements in IBD:
- Keep an open mind
- Be honest and transparent about safety and efficacy
- Review the research when possible—and be clear about where the gaps are
And remember: a lack of evidence doesn’t mean it can’t help.
(And if you’re a patient reading this—these are the kinds of conversations worth having with your care team.)
