What does the research say about sulforaphane and digestion?

Sulforaphane appears to trigger the body to produce protective enzymes in the gastrointestinal tract, according to Johns Hopkins researchers, though it is not described as a cure for digestive conditions.

Should I eat broccoli microgreens instead of taking medication for gut issues?

No, broccoli microgreens should not replace medical treatment; talk to a doctor about any digestive or gut health concerns.

How much broccoli microgreens would I need to eat to see an effect?

Study protocols have varied, and there's no single agreed-upon amount for everyday use, so treat any serving as a dietary addition rather than a measured dose.

Nutrition Guide

What Broccoli Microgreens and Gut Health Have in Common, According to Research

Q: Do broccoli microgreens help gut health?

Research on broccoli sprouts, which are closely related to microgreens, found that a daily dose reduced markers of H. pylori bacteria by more than 40 percent in a Johns Hopkins-affiliated study, though researchers caution this did not cure infection.

Q: Is sulforaphane higher in sprouts or mature broccoli?

Broccoli sprouts have been found to contain 20 to 50 times more sulforaphane than mature broccoli plants.

⏱ 8 min read🌿 By Connor Hiebel

Key Takeaways

Broccoli sprouts contain 20-50x more sulforaphane than mature broccoli.
A Johns Hopkins-affiliated study found a daily dose reduced H. pylori markers by more than 40%.
Researchers are clear sulforaphane does not cure infection or GI disease.
Talk to a doctor about any real digestive or gut health concerns.

Table of Contents

1. What Is Sulforaphane?
2. What the Johns Hopkins Research Found
3. What the Research Doesn't Say
FAQ

Broccoli microgreens get talked about a lot in gut health circles, mostly because of a compound called sulforaphane. Here's what research actually found, and just as importantly, what it didn't.

Research suggests sulforaphane may support gut health, it isn't a claim that broccoli microgreens cure anything.

20-50x

More Sulforaphane in Sprouts¹

40%+

Reduction in H. pylori Markers¹

8 wks

Effect Faded After Stopping¹

0

Cures Claimed by Researchers

1. What Is Sulforaphane?

Sulforaphane is a plant compound concentrated in broccoli sprouts and microgreens, appearing to trigger cells in the body, including in the gastrointestinal tract, to produce enzymes that protect against oxygen radicals and inflammation, according to Johns Hopkins researchers.¹²

2. What the Johns Hopkins Research Found

In a Johns Hopkins-affiliated study, a daily dose of broccoli sprouts reduced a specific marker of H. pylori bacteria shed in the stool of infected people by more than 40 percent.¹ Broccoli sprouts were found to contain 20 to 50 times more sulforaphane than the mature plant.¹

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Pro Tip

Since sprouts and microgreens share the same early-growth-stage nutrient concentration, broccoli microgreens are a reasonable dietary source of sulforaphane alongside sprouts.

3. What the Research Doesn't Say

Researchers were explicit that eating sprouts did not cure H. pylori infection, and did not suggest broccoli sprouts protect against stomach cancer or cure GI diseases. Effects on the measured marker also faded roughly eight weeks after people stopped eating sprouts.¹

Grow Your Own Broccoli Microgreens

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Sources

Frequently Asked Questions

Do broccoli microgreens help gut health?

Research on related broccoli sprouts found a reduction in H. pylori markers, though it did not cure infection.

What does research say about sulforaphane and digestion?

It appears to trigger protective enzymes in the GI tract, per Johns Hopkins research, but isn't described as a cure.

Is sulforaphane higher in sprouts or mature broccoli?

Sprouts contain 20-50x more than mature broccoli.

Should I use this instead of medication?

No, talk to a doctor about any digestive health concerns.

How much would I need to eat?

There's no single agreed-upon amount; treat it as a dietary addition, not a measured dose.

Connor Hiebel — Founder & Bestselling Author

14+ years growing experience. Connor started Island Microgreens to help families grow fresh, nutrient-dense food at home — no garden, no experience needed. FedEx Sustainability Grant Winner & Buy-One-Give-One School Program founder.