Arugula is not high in histamine. It’s widely considered a low-histamine food and is generally well tolerated by people with histamine intolerance. If you’re building a low-histamine diet and wondering whether arugula belongs on your plate, it’s one of the safer leafy greens available.
How Arugula Compares to Other Greens
Not all salad greens are equal when it comes to histamine. Spinach, for example, is one of the most commonly flagged vegetables for people with histamine intolerance. It contains significant levels of histamine itself and can worsen symptoms in sensitive individuals. Arugula sits on the opposite end of the spectrum. Mast Cell 360, a clinical resource focused on mast cell activation syndrome, lists arugula among its recommended low-histamine vegetables based on both research and clinical experience with highly sensitive patients.
The Swiss Interest Group Histamine Intolerance (SIGHI), one of the most referenced food compatibility databases for histamine intolerance, does assign a compatibility score of 2 to wild arugula (Diplotaxis tenuifolia), which indicates poor tolerance. This is worth noting because it creates some contradiction with other sources. The standard salad arugula most people buy (Eruca vesicaria) may behave differently from wild arugula, and individual tolerance can vary. If you react to arugula despite its generally low-histamine reputation, the SIGHI rating for the wild variety could explain why.
What Arugula Actually Contains
When researchers have measured biogenic amines in arugula, the results are modest. One analysis of biogenic amine levels in vegetables found arugula contained about 12 mg/kg of tyramine. Tyramine is a different biogenic amine from histamine, but it can cause similar symptoms in sensitive people, including headaches and flushing. For context, 12 mg/kg is a low concentration. Aged cheeses can contain tyramine levels hundreds of times higher.
The research did not find notable histamine concentrations in raw arugula, which aligns with its reputation as a low-histamine food. This matters because some vegetables accumulate histamine during storage or processing. Arugula, eaten fresh, doesn’t appear to carry that risk to the same degree as spinach, tomatoes, or eggplant.
Arugula May Actually Work in Your Favor
Arugula contains a surprisingly high concentration of quercetin, a plant compound that stabilizes the cells responsible for releasing histamine in your body. Raw wild arugula delivers about 66 mg of quercetin per 100 grams, placing it among the richest dietary sources. Quercetin works by helping prevent mast cells from dumping their histamine stores into surrounding tissue, which is the mechanism behind many allergy and intolerance symptoms.
This doesn’t mean eating arugula will treat histamine intolerance. But it does mean arugula is unlikely to make things worse and may offer a small protective benefit as part of a broader low-histamine diet.
Why Some People Still React to Arugula
If you’ve tried arugula and noticed symptoms like itching, digestive discomfort, or headaches, histamine might not be the culprit. Arugula contains about 15.62 mg/kg of salicylates, which places it in the “very high” category for salicylate content. Salicylate sensitivity produces symptoms that overlap heavily with histamine intolerance: skin flushing, hives, nasal congestion, and stomach upset. People who react to arugula but tolerate other low-histamine foods may actually have a salicylate sensitivity rather than a histamine problem.
There’s also the SIGHI rating for wild arugula to consider. Wild arugula (the peppery, narrow-leafed variety sold at farmers’ markets and in some mixed greens) may be less well tolerated than standard cultivated arugula. If you’re buying a pre-mixed salad blend, check whether it includes wild rocket, as that could be the source of a reaction.
Practical Tips for Adding Arugula to a Low-Histamine Diet
Freshness matters more than almost anything else with histamine and vegetables. Histamine levels in food rise as bacteria break down amino acids over time, so the older your produce, the higher its histamine load. Buy arugula as fresh as possible, use it within a day or two, and avoid pre-washed bags that have been sitting on shelves. If you buy in bulk, freezing arugula immediately can preserve its low-histamine status.
Start with a small portion if you’re new to tracking your histamine tolerance. Even though arugula is broadly considered safe, individual thresholds vary widely. A handful mixed into a meal is a reasonable starting point. If you tolerate it well, there’s no reason to limit your intake based on histamine concerns alone. Pair it with other low-histamine vegetables like cucumbers, zucchini, and carrots for a salad that’s unlikely to trigger symptoms.