Apigenin is a plant flavonoid — technically 4′,5,7-trihydroxyflavone — found across a wide range of edible plants. It has drawn scientific attention for its interactions with GABA-A receptors, its influence on certain cell-cycle proteins, and its modest effect on CD38, an enzyme involved in NAD+ metabolism. Unlike many bioactive compounds that exist only in exotic or expensive botanicals, apigenin shows up in everyday foods: a cup of chamomile tea, a handful of fresh parsley, a stalk of celery.
This article maps the main dietary sources of apigenin, explains what is known about how much they contain, discusses factors that affect how much apigenin the body actually absorbs, and notes where the evidence is still early or incomplete. It is not medical advice, and no claims are made that consuming these foods will diagnose, treat, cure, or prevent any disease.
Key Takeaways
- Chamomile tea (dried flowers steeped) is the most concentrated commonly consumed dietary source of apigenin.
- Fresh parsley and celery seed are among the richest culinary herb sources; heavy users of parsley-forward cuisines may consume meaningful amounts.
- The Apiaceae plant family (parsley, celery, dill, fennel, coriander) is notably apigenin-rich compared to most other botanical families.
- Bioavailability varies significantly based on the glycosylated form present, gut microbiome, and food matrix — whole foods and isolated extracts behave differently in the body.
- Apigenin inhibits CYP1A2, CYP2C9, and CYP3A4; anyone on warfarin, certain statins, or benzodiazepines should speak to a physician before significantly increasing intake.
What Makes Apigenin Worth Tracking in Your Diet
Apigenin belongs to the flavone subclass of polyphenols. Flavones are defined by a double bond between positions 2 and 3 of the flavonoid backbone, and apigenin’s three hydroxyl groups at positions 4′, 5, and 7 give it a particular binding affinity for several biological targets. In cell and animal studies, it has shown interactions with benzodiazepine-binding sites on GABA-A receptors (the same sites targeted by drugs like diazepam), with cyclin-dependent kinases CDK2 and CDK6 involved in cell proliferation, and with the NAD+-consuming enzyme CD38.
Most of this mechanistic work has been done in laboratory settings using isolated compounds at concentrations that may not reflect what you absorb from food. Translating cell-culture findings to human outcomes is not straightforward, and large clinical trials on dietary apigenin in humans are limited. With that honest caveat in place, understanding which foods supply the most apigenin remains useful context for anyone paying attention to polyphenol intake.
Chamomile: The Standout Dietary Source
Dried chamomile flowers (Matricaria chamomilla) are the single richest commonly consumed source of apigenin. The compound accumulates heavily in the flower heads, and because chamomile tea is prepared by steeping dried flowers, a meaningful fraction of the apigenin extracts into the water. Estimates in the literature vary depending on steeping time, water temperature, and flower origin, but chamomile tea is consistently identified as one of the most concentrated apigenin-containing beverages available.
It is worth noting that chamomile is a sedative herb in traditional use, and the GABA-A receptor activity attributed to apigenin is the most plausible molecular basis for that effect. People who take benzodiazepines, sleep medications, or other sedatives — or who consume alcohol — should be aware that chamomile tea is not a neutral, effect-free beverage. Additive sedation is a real consideration. Apigenin also inhibits the cytochrome P450 enzymes CYP1A2, CYP2C9, and CYP3A4, which means regular chamomile consumption could affect how certain drugs — including warfarin and some statins — are metabolized. Consult a physician if you take any of these medications.
From a practical standpoint, chamomile tea made with 1–2 teaspoons of dried flowers is a low-calorie way to obtain apigenin in a form that has been consumed safely by large populations for centuries. The evening timing many people already use aligns with apigenin’s proposed anxiolytic and sleep-onset effects.
Parsley: A Concentrated Culinary Source
Fresh parsley (Petroselinum crispum) contains some of the highest apigenin concentrations of any common culinary herb. The compound is present in both flat-leaf and curly varieties, though concentrations vary. Because parsley is typically used as a garnish or in small culinary quantities rather than as a main dish ingredient, a sprig or two contributes meaningfully less total apigenin than a full cup of chamomile tea. However, people who use parsley heavily — in tabbouleh, chimichurri, Persian herb rice (sabzi polo), or Middle Eastern cooking more broadly — can accumulate a significant intake.
Dried parsley retains apigenin but at variable levels depending on drying method and storage duration. Heat and prolonged exposure to light can degrade polyphenols, so freshly chopped parsley in cold preparations likely preserves more of the compound than herbs that have been cooked at high temperatures. Parsley is also a source of vitamin K and folate, so its overall nutritional profile makes it a worthwhile addition to the diet for reasons beyond apigenin alone.
Celery, Celery Seed, and Related Apiaceae Plants
Celery (Apium graveolens) and celery seed are both recognized apigenin sources, with the seeds generally containing higher concentrations per gram than the fresh stalks. The Apiaceae plant family — which includes celery, parsley, dill, fennel, coriander, and angelica — appears to be particularly rich in apigenin relative to other botanical families, suggesting a shared biosynthetic emphasis on this specific flavone.
Celery seed extract is sold as a supplement, often marketed for blood pressure or uric acid support, and some of those preparations are standardized to their apigenin content. Fresh celery eaten as a snack or used in cooking provides apigenin in smaller amounts alongside dietary fiber, vitamins, and water. Fennel fronds and seeds, used commonly in Italian and Indian cooking, are lesser-known but plausible sources that have not been as extensively characterized analytically.
Other Plant Sources: Artichokes, Citrus, Wheat, and Dried Herbs
Beyond the Apiaceae family, apigenin appears in a range of other plants. Artichoke heads and leaves contain flavones including apigenin, and artichoke leaf extract is already a commercially available supplement. Citrus fruits — particularly the peel of oranges and grapefruit — contain apigenin-7-O-glucoside, a glycosylated form, alongside other citrus flavonoids. The peels themselves are rarely eaten directly in the Western diet but end up in marmalades, zests, and some extracts.
Wheat sprouts and certain grains contain apigenin in smaller amounts. Dried herbs such as oregano, thyme, and basil have been measured as polyphenol-dense foods, and while their primary flavonoids differ by species, apigenin has been detected across several of them. The consistent thread is that culinary herbs and aromatic plants tend to accumulate flavones as part of their secondary metabolite profiles — a likely defense against insects and UV radiation.
One important point about whole-food polyphenol intake: the full matrix of a plant food includes both freely extractable polyphenols and forms bound to cell wall polysaccharides that release more slowly during digestion. Research on polyphenol-containing beverage byproducts has highlighted how this distinction — between extractable and non-extractable fractions — can influence metabolic effects [1]. This suggests that eating whole food sources rather than relying exclusively on isolated extracts may deliver a different, and possibly complementary, absorption pattern.
Bioavailability: Why Source Form Matters
Apigenin in plants exists mostly in glycosylated forms — attached to sugar molecules such as glucose or apiose. The free aglycone (pure apigenin) is present in smaller quantities. Glycosylated forms must be hydrolyzed by gut bacteria or intestinal enzymes before the aglycone can be absorbed, and this process is influenced by gut microbiome composition, meal context, and the specific sugar attached. This means that two people eating the same amount of apigenin from food can absorb quite different amounts.
Apigenin’s aqueous solubility is limited, which affects how efficiently it moves across intestinal membranes. Food matrix factors — fat content of the meal, fiber, other polyphenols present — all interact with absorption. The general principle that isolated supplement doses are not equivalent to whole-food intake in terms of absorption kinetics applies here. Neither form has been rigorously compared in large human bioavailability trials, so definitive guidance on optimal delivery is not yet available.
For practical purposes, regularly including chamomile tea, fresh parsley, celery, and aromatic herbs in the diet is a reasonable, evidence-consistent way to maintain dietary apigenin intake without relying on high-dose supplements whose long-term safety profile in humans is less established.
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A Note on the Evidence
The research on apigenin’s mechanisms is largely from cell culture and animal models; human clinical trials are limited and small, so translating findings to guaranteed dietary benefits is not supported by current evidence. Individuals taking warfarin, benzodiazepines, sedating medications, or statins metabolized by CYP1A2, CYP2C9, or CYP3A4 should consult a physician before substantially increasing apigenin intake from supplements or very high dietary amounts, as enzyme inhibition could alter drug levels. These statements have not been evaluated by the FDA; apigenin is not intended to diagnose, treat, cure, or prevent any disease.
Frequently Asked Questions
Which food has the most apigenin?
Dried chamomile flowers used to make tea are consistently identified as one of the highest-concentration dietary sources of apigenin. The compound accumulates in the flower heads, and a significant fraction transfers into hot water during steeping, making chamomile tea one of the most accessible high-apigenin beverages.
Can I get enough apigenin from food alone, or do I need a supplement?
There is no established dietary reference intake for apigenin, so ‘enough’ has no defined clinical threshold. Regular consumption of chamomile tea, parsley, celery, and aromatic herbs can provide meaningful dietary apigenin. Whether that intake level produces the biological effects observed in cell and animal studies — which often use higher concentrations — is not established by human clinical trials.
Does cooking destroy apigenin in parsley and celery?
Heat, light, and prolonged storage can degrade polyphenols including apigenin. Using fresh herbs in cold preparations or adding them at the end of cooking is likely to preserve more of the compound than high-heat, extended cooking. Dried herbs retain apigenin but at variable levels depending on drying and storage conditions.
Is chamomile tea safe to drink every night?
Chamomile tea has a long history of use as a nightly calming beverage and is generally considered safe for most adults. However, it is not effect-free: the apigenin it contains has GABA-A receptor activity, and combining it with other sedatives, alcohol, or sleep medications may produce additive sedation. Individuals on warfarin or CYP-metabolized drugs should consult a physician, as apigenin can inhibit drug-metabolizing enzymes.
Does the polyphenol form in food (glycoside vs. aglycone) affect how much apigenin is absorbed?
Yes. Most apigenin in plants is bound to sugar molecules (glycosylated), which must be cleaved by gut bacteria or intestinal enzymes before absorption can occur. The efficiency of this process varies between individuals based on microbiome composition and other factors. Research on polyphenol-containing foods has highlighted how extractable and non-extractable polyphenol fractions contribute differently to metabolic outcomes [1], suggesting whole-food intake has a more complex absorption profile than isolated supplements.
Are there apigenin sources beyond chamomile and parsley that are easy to add to a diet?
Yes. Celery stalks and celery seed, fennel fronds and seed, dried oregano and thyme, artichoke, and citrus peel (in zest or marmalade) all contain apigenin. Most aromatic culinary herbs in the Apiaceae and Lamiaceae families are worthwhile contributors, particularly when used generously rather than as trace garnishes.
References
- Amaya-Cruz DM et al. Polyphenol profile matters: complementary contribution of extractable and non-extractable polyphenols over metabolic effects of beverage byproducts blends. Food research international (Ottawa, Ont.) (2026). PMID 41703809
These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Content is for informational purposes only and is not medical advice; consult a qualified healthcare provider before starting any supplement. As an Amazon Associate we earn from qualifying purchases.
