← The FormularyAfter hoursDate palm extract
Also known as Phoenix dactylifera · date fruit extract · ajwa and medjool are cultivars, not synonymsThe same tree also makes the wine.
Dates are one of the best-documented traditional foods in the world and one of the worst-documented supplements. The human trials that exist are about the duration of the active phase of labour and, in a ten-person pilot, blood triglycerides — neither has anything to do with the end of a long night — and they were produced by people eating 70 to 100 grams of fruit a day. We use 20 milligrams of extract. Even on a generous 10:1 concentration that is the equivalent of about a fifth of a gram of fruit, roughly 350 times less fruit than the labour trials used; measured as extract weight against the 100 g of the triglyceride pilot, it is 5,000 times less. The rodent work is real, it is in rats, and it is not evidence about you — and the one rodent study that actually measured blood alcohol and acetaldehyde gave a five-component herbal mixture that happened to include date palm, not date palm on its own. What I would tell a friend: take the strip because you like the ritual at the end of the night, and eat dates because they are good food — not because either one is going to change how tomorrow goes.
An extract of the fruit of the date palm, Phoenix dactylifera, the tree that has fed the Gulf and North Africa for several thousand years. The fruit is about two-thirds sugar by weight and carries fibre, potassium, phenolic acids, flavonoids and carotenoids. What survives into a 20 mg extract depends entirely on how it was made, and that is rarely disclosed by anyone, ourselves included.
Date fruit phenolic acids and flavonoids behave as antioxidants in the test tube, and rodent studies report shifts in malondialdehyde and in the endogenous antioxidant enzymes superoxide dismutase, catalase and glutathione peroxidase — mostly in animals first poisoned with something else, trichloroacetic acid or the pesticide dimethoate, which is a long way from a night out. One in-vitro study in human intestinal Caco-2 cells found a date fruit extract acting as a co-agonist at the nuclear receptor FXR, which sits upstream of bile acid and lipid handling; that is an interesting lead and nothing more. The honest limits are large. The specific compounds responsible have not been pinned down, no one has published how much of any of them survives digestion in a person, and cultivar, ripeness and extraction solvent change the phytochemical profile enough that two date extracts are not the same ingredient.
Contributes date-fruit polyphenols to a traditional botanical blend. It is in the formula for traditional use and completeness, not because 20 mg has been shown to do a specific job.
Anyone taking AFTER who wants to know exactly what is in it and is content with traditional botanicals at token amounts. Not for anyone with a date or date palm pollen allergy, not for anyone on a potassium-restricted diet who is tempted to eat the fruit instead, not for anyone who is pregnant, and not for anyone treating it as cover for the drinking.
One strip on the tongue at the end of the night or before bed. Let it dissolve; no water needed. No food timing, nothing to separate it from. If you already eat dates, this adds nothing measurable to that.
Nothing you will notice. At 20 mg there is no plausible perceptible effect, and there is no human data at this amount to suggest otherwise. Water and sleep are doing the work.
Bagherzadeh Karimi et al., BMC Pregnancy and Childbirth 2020;20(1):210, pooled 8 trials and 653 participants overall; the active-phase-of-labour result came from 3 of those trials and 380 participants, and found a shortening of about 109 minutes (MD −109.3, 95% CI −196.32 to −22.29, p = 0.01). The authors themselves rated the included trials low to moderate quality, with no blinding of outcome assessors and high performance bias throughout. A 2020 systematic review of date palm clinical trials in Complementary Therapies in Medicine (vol 51, 102429) covered trials published from 2000 to August 2019 and concluded that further high-quality randomised trials are needed before clinical effects or dosage can be stated. A 2026 critical narrative review in Frontiers in Plant Science reports that most described bioactivities come from in-vitro and animal models, that human clinical evidence for antioxidant-related outcomes is limited, that no animal or human studies of the antimicrobial activity exist at all, and that standardisation of cultivar, extract preparation and dosage is lacking. The triglyceride finding is Rock et al., Journal of Agricultural and Food Chemistry 2009: a pilot in ten healthy people, 100 g of Medjool or Hallawi dates daily for four weeks, serum triacylglycerol down 8% and 15% respectively, with no change in total, LDL or HDL cholesterol. The FXR finding is in Caco-2 cells (PLOS One, 2018). The one rodent study measuring blood alcohol and acetaldehyde used a five-component herbal mixture that included Phoenix dactylifera, in Sprague Dawley rats — it is not evidence for date palm alone, and it is not evidence about people. What is not supported: any human evidence for date palm and a hangover, the effects of alcohol, or the morning after, at any dose — and certainly not at 20 mg.
Read the labelDate fruit and date palm pollen are both documented allergens and the two cross-react — if you react to the pollen you may react to the fruit. Dates are high in sugar, though 20 mg of extract is not. Not a treatment for anything, and not a hangover remedy.
Evidence grades describe how well an ingredient is studied — A well-supported, C emerging — not a promise of results. Educational, not medical advice. Doses are typical ranges; follow the label on the product.