Tejocote is a small, round fruit from trees in the genus Crataegus, native to Mexico and closely related to the hawthorns found across Europe and Asia. It has deep cultural roots in Mexican holiday traditions, a surprisingly rich nutritional profile packed with antioxidant compounds, and a growing international reputation that has been complicated by a dangerous supplement scandal. For anyone encountering tejocote for the first time, whether at a Latin market, in a holiday recipe, or on a supplement shelf, the story behind this fruit is worth understanding in full.
What Tejocote Looks and Tastes Like
The tejocote fruit is roughly the size of a crabapple, typically yellow to orange-red when ripe, with a thin skin and firm, slightly mealy pulp surrounding a few hard, stony endocarps (the seed-containing pits). Biting into a raw tejocote is not quite like biting into a peach or an apple. The flavor is tart and mildly sweet, with an astringent edge that makes it more appealing when cooked or preserved than eaten fresh off the tree. It belongs to the hawthorn genus, and like its European cousins, the fruit has a certain earthy sourness that lends itself well to jams, jellies, and warm beverages.
Botanically, tejocote is not one single species. Several Crataegus species fall under the tejocote umbrella in Mexico, mainly from the series Mexicanae and series Crus-galli. Research on germplasm collections at the Autonomous University of Chapingo has catalogued accessions from the states of Puebla, Mexico, and Chiapas, covering at least five different species.1Genetic Resources and Crop Evolution. Variability of three regional sources of germplasm of Tejocote (Crataegus spp.) from central and southern Mexico The Chiapas populations stand out as genetically distinct from those in central Mexico, with smaller pits, fewer normal seeds per pit, and more endocarps per fruit.2Scientia Horticulturae. Seed and endocarp traits as markers of the biodiversity of regional sources of germplasm of tejocote (Crataegus spp.) from Central and Southern Mexico The central Mexican populations from Puebla and the State of Mexico, by contrast, are so similar they can be treated as a single genetic pool.
Tejocote in Mexican Holiday Traditions
If you have spent any time in Mexico between late October and late December, you have almost certainly encountered tejocote. The fruit plays a starring role in two of the country’s most beloved holiday traditions. During the Day of the Dead celebrations in early November, fresh tejocotes are placed on altars (ofrendas) as offerings to the deceased. Then, throughout the Christmas season, tejocote is an essential ingredient in ponche, the warm fruit punch simmered with guava, sugarcane, cinnamon, and piloncillo (unrefined cane sugar) that is served at holiday gatherings.3ISHS Acta Horticulturae. ETHNOBOTANICAL, CULTURAL, AND AGRICULTURAL USES OF TEJOCOTE (CRATAEGUS SPECIES) IN MEXICO
The fruit also turns up inside piñatas during the posadas, the series of nightly celebrations held in the nine days before Christmas. Alongside candies and small gifts, whole fresh tejocotes tumble out when the piñata breaks open.4ISHS Acta Horticulturae. ETHNOBOTANICAL, CULTURAL, AND AGRICULTURAL USES OF TEJOCOTE (CRATAEGUS SPECIES) IN MEXICO This cultural significance means that tejocote demand spikes sharply every autumn, and much of the commercial harvest in central Mexico revolves around meeting that seasonal window. Beyond the holidays, tejocote is used year-round in preserves, candied fruit (ate de tejocote), and occasionally as a pectin source in jam-making, since the fruit is naturally high in pectin.
Nutritional Profile and Antioxidant Compounds
Tejocote has attracted scientific interest largely because of what its pulp, peel, and seeds contain. Like other hawthorn fruits, it is rich in phenolic compounds, the class of plant chemicals associated with antioxidant activity. Research has identified catechin, epicatechin, and chlorogenic acid as the dominant phenolics in the pulp. One study reported catechin at about 9 mg per 100 mg of dried fruit, chlorogenic acid at roughly 5.6 mg, and epicatechin at about 4.3 mg, along with substantial levels of proanthocyanidins, which are chains of catechin and epicatechin molecules.5Journal of Food Quality. Phytochemical Characterization, In Vitro Antioxidant Activity, and Quantitative Analysis by Micellar Electrokinetic Chromatography of Hawthorn (Crataegus pubescens) Fruit
The peel and seeds carry their own distinct mix of compounds. Quercetin 3-D-galactoside (a flavonoid) and ascorbic acid (vitamin C) show up across all three fractions of the fruit. Meanwhile, vitexin, a flavone linked to anti-inflammatory effects in preliminary research, was found specifically in the seed, while procyanidin B2 appeared in the peel and pulp.6Revista Especializada en Ciencias QuÃmico-Biológicas. Characterization and identification of bioactive compounds with antioxidant activity from peel, pulp and seed of tejocote fruit (Crataegus mexicana) Taken together, the fruit is a dense package of plant antioxidants, and researchers have suggested it could serve as a natural source of these compounds for functional food or nutraceutical development.7Journal of Food Quality. Phytochemical Characterization, In Vitro Antioxidant Activity, and Quantitative Analysis by Micellar Electrokinetic Chromatography of Hawthorn (Crataegus pubescens) Fruit
The vitamin C content deserves a separate mention, since it is one of the fruit’s traditional selling points. Review literature on the Mexican hawthorn has noted its high carotenoid and vitamin C levels as an underexploited nutritional asset. For a fruit that most people outside Mexico have never heard of, this phytochemical richness is striking, and it mirrors what has been found in European and Asian hawthorns that have a longer history in herbal medicine.
Traditional Medicinal Uses
Across the broader hawthorn genus, medicinal use goes back centuries. In Europe, hawthorn leaves, flowers, and fruit were traditionally employed to treat heart problems, thanks to reported antispasmodic, blood-pressure-lowering, and anti-atherosclerotic effects.8ScienceDirect (Academic Press). Mediterranean Hawthorn Fruit (Crataegus) Species and Potential Usage In Mediterranean folk medicine, hawthorn has also been used for coughs, flu, asthma, stomach complaints, and rheumatic pain.9ScienceDirect (Academic Press). Mediterranean Hawthorn Fruit (Crataegus) Species and Potential Usage
In Mexico, the picture is similar. Tejocote has been used in traditional remedies for respiratory conditions, cardiovascular complaints, and digestive issues. Some review literature has even mentioned potential applications in neurological conditions. These are folk uses, not clinically validated treatments. No large randomized trials have established that eating tejocote or taking genuine tejocote preparations treats any specific disease. But the cardiovascular connection is interesting, because hawthorn extract (from European species) has been studied in clinical trials for heart failure and shown modest benefits in some contexts. Whether the Mexican species would show equivalent effects remains an open question, and genuine clinical research using Crataegus mexicana specifically is thin.
The “Tejocote Root” Supplement Problem
This is where the tejocote story takes a dangerous turn. Over the past several years, supplements marketed as “tejocote root” or “raÃz de tejocote” have been aggressively promoted on social media as weight-loss aids, particularly in Latino communities in the United States. The products typically come as small root pieces that users swallow daily. The claims sound appealing: natural, plant-based, effortless fat loss. The reality is alarming.
When the U.S. Centers for Disease Control and Prevention (CDC) investigated products labeled as tejocote root, nine out of ten tested samples turned out to contain no tejocote at all. Instead, they contained yellow oleander (Cascabela thevetia), a highly toxic ornamental plant.10PubMed. Notes from the Field: Online Weight Loss Supplements Labeled as Tejocote (Crataegus mexicana) Root, Substituted with Yellow Oleander (Cascabela thevetia) – United States, 2022 Independent laboratory analysis of one popular brand confirmed the same finding: the product contained ingredients from yellow oleander rather than tejocote.11PubMed. Authentication of tejocote (Crataegus mexicana) dietary supplements based on DNA barcoding and chemical profiling
Yellow oleander contains cardiac glycosides, compounds that directly affect heart rhythm. These are in the same chemical family as digoxin, a prescription heart medication with a notoriously narrow margin between a therapeutic dose and a toxic one. Swallowing yellow oleander can slow the heart to dangerously low rates, cause nausea and vomiting, and in severe cases lead to life-threatening heart block. The fact that these supplements were sold online with essentially no oversight, and that they visually resemble harmless dried root pieces, made the problem worse.
Documented Poisoning Cases
The toxicity risk from adulterated “tejocote root” supplements is not theoretical. Published case reports document what happens when people ingest these products. In one case, a healthy 16-year-old girl arrived at an emergency department after swallowing eight pieces of her mother’s tejocote root supplement. She was drowsy, vomiting, and had diarrhea, with a heart rate of 57 beats per minute on arrival. Her blood work showed a measurable digoxin level even though she had not taken digoxin, a telltale sign of cardiac glycoside exposure from a plant source. Over the following hours, her heart rate dropped to 38 and she developed a type of heart block that required transfer to a specialized pediatric hospital and treatment with digoxin immune antibodies, the same antidote used for digoxin overdoses. Her heart rhythm did not return to normal until about 29 hours after ingestion.12PubMed Central. Crataegus mexicana (Tejocote) Exposure Associated with Cardiotoxicity and a Falsely Elevated Digoxin Level
A more recent forensic toxicology analysis of a supplement associated with cardiac symptoms used both chemical screening and DNA barcoding to identify what the product actually contained. The chemical testing detected four cardiac glycosides characteristic of the Thevetia genus: thevetin A, thevetin B, cerberin, and neriifolin. The DNA analysis confirmed the plant material came from Thevetia peruviana (yellow oleander), with no other plant species detected.13Toxicology Reports. When herbal supplements cause heart problems: Clinical case report and forensic toxicological analysis The convergence of chemical and molecular evidence left no ambiguity: the clinical harm resulted from yellow oleander contamination, not from any property of actual tejocote.
The U.S. Food and Drug Administration has issued warnings about these adulterated products.14Medical Reports. A case report of cardiac glycoside-like intoxication following reported exposure to tejocote But because the supplements are sold primarily through social media and online marketplaces, enforcement has been difficult. New sellers appear constantly, and consumers may not be aware of the FDA warnings. If you encounter a “tejocote root” weight-loss product, the safest assumption is that it has not been verified and could contain yellow oleander.
How to Tell the Fruit Apart from the Supplement
An important distinction that gets lost in the supplement headlines: the fruit itself is not the problem. Eating a bowl of fresh tejocote in your ponche, snacking on candied tejocote, or using the fruit in a jam is not going to poison you. Tejocote fruit has been consumed in Mexico for centuries without reports of cardiac toxicity. The danger comes specifically from supplements labeled as tejocote root, where the root material has been substituted with yellow oleander. Root products and whole fruit are very different things.
Fresh or preserved tejocote fruit is sold at many Latin American grocery stores and markets, especially during the fall and winter holiday season. It looks like what it is: a small, round, yellow-orange fruit. Supplement products, on the other hand, come as irregular brownish root chunks, capsules, or pressed tablets. If you are buying tejocote fruit to cook with, you are fine. If someone offers you a root supplement for weight loss, that is where the risk lives.
Cultivation and Economic Reality
Tejocote cultivation is concentrated in the highlands of central Mexico, particularly in the states of Puebla, Mexico, and Tlaxcala. Unlike many commercial fruit crops, tejocote orchards in Mexico range from small traditional plantings managed with minimal inputs to more technologically developed operations. Research on production systems in the Sierra Nevada of Puebla found that profitability varied enormously depending on how much technology and management farmers applied. Benefit-to-cost ratios ranged from barely above zero to over six, with the biggest gains associated with phytosanitary control, larger plantations, and farmer training.15Agro Productividad. Technology use and profitability analysis of tejocote production system (crataegus spp.) in the Sierra Nevada of Puebla
The pattern is fairly typical for an underexploited regional crop: farmers who invest in pest management, pruning, and post-harvest handling earn solid returns, while those using traditional low-input methods scrape by. This has implications for the fruit’s future. As commercial cultivation expands in the Mexico-Puebla-Tlaxcala corridor, researchers have raised concerns about genetic erosion, since commercial growers tend to plant a narrow range of preferred varieties while wild and semi-domesticated populations decline.16Genetic Resources and Crop Evolution. Analysis of the biodiversity of hawthorn (Crataegus spp.) from the morphological, molecular, and ethnobotanical approaches, and implications for genetic resource conservation in scenery of increasing cultivation: the case of Mexico
Genetic Diversity and Conservation
The genetic landscape of tejocote is richer than most people would guess for a fruit that barely registers outside its home country. Molecular studies reveal that roughly 90% of the genetic diversity in Mexican Crataegus exists within regions rather than between them, meaning a single mountain valley can harbor substantial variation from tree to tree.17Genetic Resources and Crop Evolution. Analysis of the biodiversity of hawthorn (Crataegus spp.) from the morphological, molecular, and ethnobotanical approaches, and implications for genetic resource conservation in scenery of increasing cultivation: the case of Mexico The Chiapas populations, separated from central Mexico by distance and altitude, represent a genuinely distinct genetic pool confirmed by both physical traits and DNA markers.18Genetic Resources and Crop Evolution. Variability of three regional sources of germplasm of Tejocote (Crataegus spp.) from central and southern Mexico
Conservation efforts center on the Germplasm Bank of Tejocote at the Autonomous University of Chapingo, which maintains accessions from multiple regions and species.19Genetic Resources and Crop Evolution. Variability of three regional sources of germplasm of Tejocote (Crataegus spp.) from central and southern Mexico But researchers have argued that this ex situ bank is not enough on its own. As commercial orchards replace traditional land-use patterns, on-farm conservation programs are needed to keep the wild and semi-managed diversity alive. The collections within each region need to be thorough, precisely because so much genetic variation is concentrated locally.20Genetic Resources and Crop Evolution. Analysis of the biodiversity of hawthorn (Crataegus spp.) from the morphological, molecular, and ethnobotanical approaches, and implications for genetic resource conservation in scenery of increasing cultivation: the case of Mexico That diversity is not just a theoretical concern for botanists. It is the raw material for breeding better varieties: trees that produce larger fruit, resist local pests, or tolerate changing climate conditions. Lose the genetic variation, and the crop’s future adaptability narrows considerably.
Tejocote as Rootstock for Other Fruit Trees
One of the quieter but economically significant roles tejocote plays in Mexican agriculture has nothing to do with eating the fruit at all. Tejocote trees are widely used as rootstock for grafting apple, pear, and quince trees. The root system of Crataegus mexicana is well adapted to the volcanic, sometimes heavy clay soils of the Mexican highlands, and it confers a degree of tolerance to local soil conditions that imported rootstocks lack. Many apple orchards in Puebla and the State of Mexico sit on tejocote roots, even if the fruit harvested from the canopy is a completely different species. This rootstock use is one reason tejocote trees are maintained even on farms that do not sell the tejocote fruit itself, and it creates an economic floor for the species that pure fruit markets alone might not support.
The dual role also complicates conservation. A farmer who keeps tejocote trees only as rootstock has little incentive to preserve fruiting diversity, since rootstock qualities (vigor, soil adaptation, graft compatibility) are different traits from fruit quality. The varieties that make good rootstock are not necessarily the ones with the most interesting fruit chemistry or the richest cultural history. This tension between commercial rootstock use and fruit-crop development is one of the reasons tejocote has been called an underexploited genetic resource, even though the trees themselves are common across central Mexican landscapes.