Is tilapia high in histamine?
Tilapia is mostly low in histamine: it is a white fish outside the histidine-rich families, and fresh white fish had no detectable histamine in 95% of lab samples. Leftover tilapia rates higher.
- Histamine
- Varies by sample
- Other amines
- Low
- Liberator
- Not on the lists we use
- DAO blocker
- No evidence
Why sources disagree. Fresh white fish measured very low (95% of samples had none), and tilapia is not from a histidine-rich family, but nine of ten published diets exclude fish as a group.
What each source says
| Source | Verdict | What it says, in our words |
|---|---|---|
| Lab measurements, Spain 1 | Measured | Fresh white fish averaged 1.14 mg/kg in 31 samples, and 95% had none. Tilapia was not reported separately. |
| Histamine intolerance review, 2020 2 | Measured | Fresh fish of all kinds averaged 0.79 mg/kg in 136 samples. |
| EU food law 3 | Histamine limits target histidine-rich fish and name six families in particular; tilapia's family is not one of them. | |
| 10 published low-histamine diets 1 | 9 of 10 exclude fish as a group. | |
| SIGHI food list 4 | See source | See SIGHI's own list for its rating. |
Measured histamine
| Food tested | Samples | Histamine | Other amines |
|---|---|---|---|
| Fresh white fish sold in Spain (group; species not given) 1 (Table 1) | 31 | mean 1.14 mg/kg, range nd–36.55 mg/kg | 95% of samples had no detectable histamine; putrescine, cadaverine and tyramine averaged 1.33, 1.61 and 1.03 mg/kg |
| Fresh fish, all kinds (group) 2 (Table 1, row "Fresh fish") | 136 | mean 0.79 mg/kg, range nd–36.55 mg/kg | median not detected |
mg/kg = milligrams of histamine per kilogram of food. "Not detected" means below the laboratory's detection limit.
How freshness and processing change it
Tilapia is often sold as frozen fillets, which suits a low-histamine diet when they are handled well. Cook them from frozen or soon after thawing in the fridge, and eat them the same day. Thawed fillets kept for days and leftovers have had time for amines to form, and cooking does not remove them.
Fresh white fish (group) averaged 1.14 mg/kg; 95% of samples had none. (measured)
Not measured; thawed fish starts its storage clock again. (estimate)
Not measured. Storage time adds histamine, and reheating does not remove it. (estimate)
Why we rate tilapia 1
Tilapia is a freshwater white fish, often sold as frozen fillets, and it sits outside the fish families most associated with histamine. EU food law sets histamine limits for fish species associated with a high amount of histidine and names six families in particular, among them the tuna and mackerel family, the herring and sardine family and the anchovy family. Tilapia belongs to the cichlids, which are not among them. Histamine in fish is made by bacteria from free histidine, so less histidine means less raw material.
No study we use measured tilapia on its own. The relevant group is fresh white fish: 31 samples sold in Spain averaged 1.14 mg/kg of histamine, and 95% had none detectable. The highest sample had 36.55 mg/kg, so a white fish is not a guarantee: one that has been badly kept can still build up histamine. Putrescine, cadaverine and tyramine averaged 1.33, 1.61 and 1.03 mg/kg. A 2020 review by the same University of Barcelona team gives fresh fish of all kinds an average of 0.79 mg/kg across 136 samples. The papers do not list species, so we cannot say whether any of the samples were tilapia.
The published diets treat all fish alike: nine of the ten low-histamine diets in a 2021 review exclude fish and fish products. That is why we mark tilapia disputed. On the measurements alone it would rate 0. We rate it 1, "mostly low", because our rule moves a food up one step when six or more of the ten diets exclude it, and because fish is the food where storage matters most.
Frozen fillets suit a low-histamine diet when they are handled well. Fish frozen soon after it is caught has spent little time in the conditions in which bacteria make histamine. Cook the fillets from frozen or soon after thawing them in the fridge, and eat them the same day. Leftover cooked tilapia was not measured; histamine forms during storage and reheating does not remove it, so we rate leftovers 2 as an estimate. Because it is mild and firm, tilapia can replace tuna or mackerel in fish tacos, curries and fried fish, with far less histidine behind it.
Questions about tilapia and histamine
Is frozen tilapia low histamine?
Frozen fillets cooked from frozen or soon after thawing are the best match to the fresh white fish that was measured, which averaged 1.14 mg/kg with 95% of samples at none detectable. Tilapia was not measured on its own; we rate it 1.
Is tilapia better than tuna for histamine?
On the evidence we have, yes. Tuna belongs to a histidine-rich family with legal histamine limits in the EU and we rate it 3; tilapia is a white fish from a family that is not on that list, and we rate it 1. Freshness still matters for both.
Evidence behind this page
- Fresh white fish sold in Spain averaged 1.14 mg/kg of histamine across 31 samples, and 95% had none detectable; the highest had 36.55 mg/kg, and putrescine, cadaverine and tyramine averaged under 2 mg/kg. 1
- Fresh fish of all kinds averaged 0.79 mg/kg across 136 samples, with a median below the detection limit. 2
- EU histamine limits apply to fish species associated with a high amount of histidine, particularly six named families; tilapia's family, the cichlids, is not among those named. 3
- Nine of ten published low-histamine diets exclude fish and fish products. 1
Sources
- Sánchez-Pérez S, Comas-Basté O, Veciana-Nogués MT, Latorre-Moratalla ML, Vidal-Carou MC. Low-Histamine Diets: Is the Exclusion of Foods Justified by Their Histamine Content? Nutrients 13(5):1395, 2021. doi:10.3390/nu13051395 (Sánchez-Pérez S et al. 2021)
- Comas-Basté O, Sánchez-Pérez S, Veciana-Nogués MT, Latorre-Moratalla M, Vidal-Carou MDC. Histamine Intolerance: The Current State of the Art. Biomolecules 10(8):1181, 2020. doi:10.3390/biom10081181 (Comas-Basté O et al. 2020)
- European Commission. Commission Regulation (EC) No 2073/2005 on microbiological criteria for foodstuffs. Official Journal of the European Union L 338, 2005. Link (European Commission 2005)
- Swiss Interest Group Histamine Intolerance (SIGHI). Food compatibility list for histamine intolerance. histaminintoleranz.ch (accessed November 2026), 2026. Link (Swiss Interest Group Histamine Intolerance (SIGHI) 2026)