This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before making dietary changes. Histamine tolerance is highly individual.
This information applies to histamine intolerance, DAO deficiency, and MCAS only. If you have a confirmed food allergy, this content does not apply to you. Food allergies involve the immune system and can be life-threatening. Please consult your allergist.
Is Turnip a trigger for histamine intolerance?
Turnip scores a 1 out of 3 on the SIGHI Food Compatibility List, placing it in the Low category.
Turnip & Histamine, what the evidence says
Turnip is not associated with meaningful histamine content, which places it favorably on a low-histamine approach. Botanically, turnip (Brassica rapa) is the same species as napa cabbage and bok choy, with different cultivated forms selected for different edible parts.
The turnip root itself is low in oxalate. Turnip greens, the plant's leafy tops, are a separate matter: published figures put them meaningfully higher in oxalate than the root, so the two parts shouldn't be assumed to carry the same oxalate load.
Turnip contains mannitol, a sugar alcohol and one of the FODMAP groups. A serving of about 75 grams (roughly one cup) is generally considered low in FODMAPs, but this rises to high at around one and a half cups, so portion size is worth keeping in mind for larger servings.
Does preparation change the risk?
Root versus greens, and portion size, are the main variables for turnip.
| Form | Risk Level | Notes |
|---|---|---|
| Root, small portion (about 75g) | Low | Low in oxalate; generally low in FODMAPs at this serving size |
| Root, large portion (1.5 cups or more) | Moderate | Still low in oxalate, but FODMAP content rises to high at this serving size |
| Turnip greens | Moderate | Meaningfully higher in oxalate than the root; treat as a separate food |
Note: Risk levels are based on clinical observations and patient reports, not standardized histamine measurements. Individual tolerance varies.
A food score is a reference, not a verdict.
Histamine intolerance is highly individual. A food that triggers symptoms in one person may be tolerated by another, even within the same category.
Strict elimination may help reduce symptoms initially, but long-term progress often depends on gradual reintroduction and pattern recognition. The goal is not to remove more foods over time, but to understand your personal tolerance and expand your diet when possible.
Tracking symptoms, portions, and context such as stress or timing can provide insights that generalized food lists cannot. This is where informed decisions replace fear-based restriction.
How to test your tolerance
Related to napa cabbage and bok choy.Turnip shares a species with napa cabbage and bok choy, just a different cultivated form selected for its root rather than its leaves.
Don't assume the greens match the root.Turnip greens are meaningfully higher in oxalate than the root itself, so track them as a separate food if oxalate is a concern.
Watch your portion size.About 75 grams (roughly one cup) of turnip root is generally low in FODMAPs, but this rises to high around one and a half cups due to its mannitol content.
Track your response if trying it new.Even well-tolerated vegetables are worth a brief note in the MyHistaMap app when first introduced.
Common questions about Turnip and histamine
Is turnip high in histamine?
No. Turnip is not associated with meaningful histamine content.
Is turnip related to napa cabbage or bok choy?
Yes, they're the same species (Brassica rapa), just different cultivated forms selected for different edible parts, root for turnip, leaves for napa cabbage and bok choy.
Is turnip high in oxalate?
The root is low in oxalate. Turnip greens are a separate matter and run meaningfully higher, so they shouldn't be assumed to carry the same oxalate load.
How much turnip can I eat on a low FODMAP approach?
About 75 grams (roughly one cup) is generally considered low in FODMAPs. This rises to high around one and a half cups, due to turnip's mannitol content.
Some people find these options helpful
Supplements are optional tools, not a solution. Personal tracking and identifying your individual triggers remains the priority.
Where this information comes from
At MyHistaMap we curate information from peer reviewed research and recognized medical sources. This guide is a reference tool, not a medical prescription. Always track your own reactions and consult your healthcare provider.
References
- SIGHI (Swiss Interest Group Histamine Intolerance) Food Compatibility List, version 2024-08-29: rates turnip 1, with no liberator or rich-in-histamine marking. This is the source for the low-histamine classification referenced on this page.
- Turnip and Turnip Greens Oxalate Content, OxalateContent.com, citing USDA FoodData Central: reports turnip root oxalate content at 3mg per 100g, considered low, compared to turnip greens at 50mg per 100g, considered high. This is the source for the root-versus-greens oxalate distinction referenced on this page.
- Low FODMAP Braised Turnips, citing Monash University FODMAP testing: confirms turnips are safe in servings of up to 1 cup (75g) per sitting, with servings of 1.5 cups or more high in both fructose and galactooligosaccharides. This is the source for the portion-dependent FODMAP classification referenced on this page.
- Phenolic Component Profiles of Mustard Greens, Yu Choy, and 15 Other Brassica Vegetables, Journal of Agricultural and Food Chemistry: confirms turnip, napa cabbage, and bok choy are all cultivated forms of the species Brassica rapa. This is the source for the taxonomic relationship referenced on this page.