Can I Eat Dates On a Keto Diet?
By CASEY THALER, NASM-CPT, FNS
Casey is one of the most highly-regarded voices in the paleo and keto communities. He is pursuing his Ph.D in nutritional biochemistry (hopefully from Harvard University), and has written over 200 articles on health, science, nutrition, and fitness. As a National Academy of Sports Medicine certified personal trainer and fitness nutrition specialist, he has also helped thousands of people lose weight, look younger, and live their healthiest lives. He is the author of the best-selling title, The Essential Instant Pot Keto Cookbook.
Can I Eat Dates On a Keto Diet?
When you first switch to a keto approach, you will likely have many questions about which foods you can, and cannot eat. Since a ketogenic approach is often as low as 50 grams of net carbohydrates per day – high carb foods are generally not a regular keto staple. However, there are some exceptions. Fruit, for example – is not a regular carbohydrate.
While consuming too much sugar, and too many carbs – is certainly not ideal for a keto diet – fruit can be a perfectly good choice, in moderation. Which brings us to dates. Not just a ‘normal’ food - dates are sweet, golden – and packed with numerous, science-backed, nutritional benefits.
Since one of the defining characteristics of the keto diet is its highly concentrated fat content – most of fattier foods are more readily associated with optimal ketogenic choices. But since the ketogenic diet was originally designed to reduce and control seizures, there is still room for some sugar. WebMD reminds us that “by reducing the number of carbohydrates a person eats, the body is forced to burn fat for energy, a process called "ketosis". This ketosis is the same process that kicks in when someone is fasting - on purpose, or because of starvation. Fasting has been a traditional seizure treatment for centuries.”
While a sugar-rich, carb-heavy diet would certainly kick someone out of ketosis – some nutrient-dense, moderate amounts of sugar – will not. Dates are pretty much the best choice in this category. The benefits of dates are numerous - ranging from fiber content, to inflammation reduction, to aiding with anemia, in addition to boosting energy, reducing stroke risk, improving bone health, and more.
In fact, as you can see in our 50+ scientific references at the end of this article – dates have substantial scientific benefits. A diet with regular date consumption can help lower the risk of diseases, by three main preventive pathways – anti-inflammatory, anti-oxidant, and anti-tumor. Originating with a Greek word, dates are one of the oldest cultivated human plants of any kind – dating back more than 5000 years. Most don’t know that there are over 200 different types of dates, grown throughout the world.
As with all foods, organically sourced dates are far superior in nutrition – always opt for organic varieties. If you are looking to buy dates directly – the US is not the biggest grower, surprisingly. In fact, the United States only produces around 10% of dates, worldwide. In addition to our aforementioned three aspects of disease-prevention, dates are also anti-diabetic, a sex hormone modulator, hepato-protective, anti-microbial, and nephron-protective.
In a word – dates are ‘fantastically’ good for your health. As keto dieters can tell you – controlling your blood sugar is crucial for preventing weight gain, and maintaining a healthy metabolism. With 3% of the world population suffering from diabetes, controlling blood sugar is a critical health improvement, that can literally save lives, and also help prevent obesity-related illnesses.
The date palm tree is the origin of date production, and you can find these trees in many tropical regions – after which the dates are dried. Since dates are a dried fruit, they are a more streamlined form of nutrition. Besides exhibiting all the beneficial features mentioned above, dates also contain: vitamin B6, fiber, potassium, magnesium, iron, manganese, copper, and more.
Figs and raisins (other dried fruits) have similar nutritional profile, but dates excel in their fiber content, specifically. Scientific studies have found that dates directly improve with fiber-related issues, such as constipation and blood sugar control. It is important to also note that dates are a low glycemic index (GI) food – which means your blood sugar does not spike, like when consuming candy or other unhealthy foods.
The low GI content of dates is critically important, not just for the keto diet – but for any healthy diet. As confirmed by scientific research, blood sugar spikes are one of the biggest contributors to weight gain. Essentially, we eat something unhealthy and sugary – which makes us feel great for 30 minutes – then we feel terrible (as blood sugar drops) – and we crave something equally unhealthy. And the cycle goes on.
This simple paradigm of high GI foods, is a huge contributor to obesity, as well as a host of other metabolically-related diseases. Dried plums, figs, raisins, and other fruits also have this benefit (but in my opinion, they don’t taste nearly as good as dates!) In fact, dates also beat out these other fruits in antioxidant content – containing more phenolic acid, flavonoids, and carotenoids (amongst others). These antioxidants are beneficial for eye health, Alzheimer’s prevention, diabetes prevention, and even helping to potentially lower the risk of cancer.
Most interestingly to me, dates seem to have benefits for brain health. Since dates have been scientifically shown to lower inflammation (such as interleukin 6), there seems to be fairly good evidence that dates help protect against inflammation and neurodegenerative related diseases. This includes conditions like Alzheimer’s. Amyloid beta proteins are one of the leading causes of this scary condition, and scientific research has shown that dates help lower the activity of these proteins.
While it is understandable that keto dieters might be wary or hesitant to regularly include dates in their low-carb approach – the truth is, they offer one of the best nutrient profiles for any food that contains natural sugars. The key – as with most things related to health – is moderation. Sugar and carbohydrates on a keto diet are definitely fewer – quantity-wise – than the traditional, high-carb Western diet.
But that doesn’t mean you should completely eliminate both. A small amount of glucose helps the brain function optimally and consuming around 50 grams of carbs still helps provide some important nutritional and physiologic benefits for the body and brain. The best advice I could give you, is that you should prioritize food quality – no matter which dietary approach you are following. Organic, nutritionally-dense – all of your food choices should follow this simple-to-remember paradigm. Dates are – in many ways – one of the most well-rounded nutritional fruits. And they are perfect to eat (in moderation), on a keto diet.
Al Qarawi AA, Abdel-Rahman H, Mousa HM, Ali BH, El-Mougy SA. Nephroprotective action of Phoenix dactylifera in gentamicin-induced nephrotoxicity. Pharm Biol. 2008;46:227–30.
Al-Farsi M, Alasalvar C, Morris A, Baron M, Shahidi F. Comparison of antioxidant activity, anthocyanins, carotenoids, and phenolics of three native fresh and sun-dried date (Phoenix dactylifera L.) varieties grown in Oman. J Agric Food Chem. 2005;53:7592–9.
Al-Farsi M, Alasalvar C, Morris A, Baron M, Shahidi F. Compositional and sensory characteristics of three native sun-dried date (Phoenix dactylifera L.) varieties grown in Oman. J Agric Food Chem. 2005;53:7586–91.
Al-Farsi M, Morris A, Baron M. Abu Dhabi, United Arab Emirates: 2006. Functional properties of Omani dates (Phoenix dactylifera). The Third International Date Palm Conference; pp. 19–21.
Al-farsi MA, Lee CY. Nutritional and functional properties of dates: a review. Crit Rev Food Sci Nutr. 2008;48(10):877-87.
Al-kuran O, Al-mehaisen L, Bawadi H, Beitawi S, Amarin Z. The effect of late pregnancy consumption of date fruit on labour and delivery. J Obstet Gynaecol. 2011;31(1):29-31.
Al-shahib W, Marshall RJ. The fruit of the date palm: its possible use as the best food for the future?. Int J Food Sci Nutr. 2003;54(4):247-59.
Alhaider IA, Mohamed ME, Ahmed KKM, Kumar AHS. Date Palm () Fruits as a Potential Cardioprotective Agent: The Role of Circulating Progenitor Cells. Front Pharmacol. 2017;8:592.
Alkaabi JM, Al-dabbagh B, Ahmad S, Saadi HF, Gariballa S, Ghazali MA. Glycemic indices of five varieties of dates in healthy and diabetic subjects. Nutr J. 2011;10:59.
Allaith AA. Antioxidant activity of Bahraini date palm (Phoenix dactylifera L.) fruit of various cultivars. Int J Food Sci Technol. 2008;43:1033–40.
Ban JY, Cho SO, Jeon SY, Bae K, Song KS, Seong YH. 3,4-dihydroxybenzoic acid from Smilacis chinae rhizome protects amyloid beta protein (25-35)-induced neurotoxicity in cultured rat cortical neurons. Neurosci Lett. 2007;420:184–8.
Berker KI, Ozdemir Olgun FA, Ozyurt D, Demirata B, Apak R. Modified Folin-Ciocalteu antioxidant capacity assay for measuring lipophilic antioxidants. J Agric Food Chem. 2013;61:4783–91.
Biglari F, AlKarkhi, Abbas FM, Easa AM. Antioxidant activity and phenolic content of various date palm (Phoenix dactylifera) fruits from Iran. Food Chem. 2008;107:1636–41.
Cheng CY, Su SY, Tang NY, Ho TY, Chiang SY, Hsieh CL. Ferulic acid provides neuroprotection against oxidative stress-related apoptosis after cerebral ischemia/reperfusion injury by inhibiting ICAM-1 mRNA expression in rats. Brain Res. 2008;1209:136–50.
Cheng CY, Su SY, Tang NY, Ho TY, Lo WY, Hsieh CL. Ferulic acid inhibits nitric oxide-induced apoptosis by enhancing GABA (B1) receptor expression in transient focal cerebral ischemia in rats. Acta Pharmacol Sin. 2010;31:889–99. [PMC free article]
Cho JY, Kim HS, Kim DH, Yan JJ, Suh HW, Song DK. Inhibitory effects of long-term administration of ferulic acid on astrocyte activation induced by intracerebroventricular injection of beta-amyloid peptide (1-42) in mice. Prog Neuropsychopharmacol Biol Psychiatry. 2005;29:901–7.
Cosentino SA, Stern Y, Sokolov E, Scarmeas N, Manly JJ, Tang MX, et al. Plasma ß-amyloid and cognitive decline. Arch Neurol. 2010;67:1485–90. [PMC free article]
Eid N, Enani S, Walton G, et al. The impact of date palm fruits and their component polyphenols, on gut microbial ecology, bacterial metabolites and colon cancer cell proliferation. J Nutr Sci. 2014;3:e46.
Essa MM, Akbar M, Khan MA. Beneficial effects of date palm fruits on neurodegenerative diseases. Neural Regen Res. 2016;11(7):1071-2.
Essa MM, Guillemin GJ, Al-Adawi S, Al-Asmi, Vaishnav R, Ramachandiran N, et al. Manickavasagan A, Essa MM, Sukumar E. The Dates – Genous Phoneix. UK: CRC Press; 2012. Anti amyloidogenic effect of dates with reference to their protection against Alzheimer's disease; pp. 397–403.
Essa MM, Vijayan RK, Castellano-Gonzalez G, Memon MA, Braidy N, Guillemin GJ. Neuroprotective effect of natural products against Alzheimer's disease. Neurochem Res. 2012;37:1829–42.
Gamil-Abdel-Hafez M, Fouad-Shalaby A, Akhal I. Chemical composition of 15 varieties of dates grown in Saudi Arabia. Fourth Symposium on Biological Aspects of Saudi Arabia. 1980:89–91.
Graf E. Antioxidant potential of ferulic acid. Free Radic Biol Med. 1992;13:435–48.
Hartman D. Aging and oxidative stress. JIFFC. 1998;10:24–7.
Huang Y, Jin M, Pi R, Zhang J, Chen M, Ouyang Y, et al. Protective effects of caffeic acid and caffeic acid phenethyl ester against acrolein-induced neurotoxicity in HT22 mouse hippocampal cells. Neurosci Lett. 2013;535:146–51.
Ishurda O, John FK. The anti-cancer activity of polysaccharide prepared from Libyan dates (Phoenix dactylifera L.) Carbohydr Polym. 2005;59:531–5.
Kawarabayashi T, Younkin LH, Saido TC, Shoji M, Ashe KH, Younkin SG. Age-dependent changes in brain, CSF, and plasma amyloid (beta) protein in the Tg2576 transgenic mouse model of Alzheimer's disease. J Neurosci. 2001;21:372–81.
Kennedy JS, Bymaster FP, Schuh L, Calligaro DO, Nomikos G, Felder CC, et al. A current review of olanzapine's safety in the geriatric patient: From pre-clinical pharmacology to clinical data. Int J Geriatr Psychiatry. 2001;16 Suppl 1:S33–61.
Khan F, Khan TJ, Kalamegam G, et al. Anti-cancer effects of Ajwa dates (Phoenix dactylifera L.) in diethylnitrosamine induced hepatocellular carcinoma in Wistar rats. BMC Complement Altern Med. 2017;17(1):418.
Kim HS, Cho JY, Kim DH, Yan JJ, Lee HK, Suh HW, et al. Inhibitory effects of long-term administration of ferulic acid on microglial activation induced by intracerebroventricular injection of beta-amyloid peptide (1-42) in mice. Biol Pharm Bull. 2004;27:120–1.
Koh PO. Ferulic acid prevents the cerebral ischemic injury-induced decrease of Akt and Bad phosphorylation. Neurosci Lett. 2012;507:156–60.
Kordi M, Meybodi FA, Tara F, Fakari FR, Nemati M, Shakeri M. Effect of Dates in Late Pregnancy on the Duration of Labor in Nulliparous Women. Iran J Nurs Midwifery Res. 2017;22(5):383-387.
Kuo YM, Kokjohn TA, Beach TG, Sue LI, Brune D, Lopez JC, et al. Comparative analysis of amyloid-beta chemical structure and amyloid plaque morphology of transgenic mouse and Alzheimer's disease brains. J Biol Chem. 2001;276:12991–8.
Laske C, Sopova K, Gkotsis C, Eschweiler GW, Straten G, Gawaz M, et al. Amyloid-ß peptides in plasma and cognitive decline after 1 year follow-up in Alzheimer's disease patients. J Alzheimers Dis. 2010;21:1263–9.
Mansouri A, Embarek G, Kokkalou E, Kefalas P. Phenolic profile and antioxidant activity of the Algerian ripe date palm fruit (Phoenix dactylifera) Food Chem. 2005;89:411–20.
Mori T, Koyama N, Guillot-Sestier MV, Tan J, Town T. Ferulic acid is a nutraceutical ß-secretase modulator that improves behavioral impairment and alzheimer-like pathology in transgenic mice. PLoS One. 2013;8:e55774. [PMC free article]
Ono K, Hamaguchi T, Naiki H, Yamada M. Anti-amyloidogenic effects of antioxidants: Implications for the prevention and therapeutics of Alzheimer's disease. Biochim Biophys Acta. 2006;1762:575–86.
Ono K, Hirohata M, Yamada M. Ferulic acid destabilizes preformed beta-amyloid fibrils in vitro. Biochem Biophys Res Commun. 2005;336:444–9.
Ozaki Y. Antiinflammatory effect of tetramethylpyrazine and ferulic acid. Chem Pharm Bull (Tokyo) 1992;40:954–6.
Rahmani AH, Aly SM, Ali H, Babiker AY, Srikar S, Khan AA. Therapeutic effects of date fruits (Phoenix dactylifera) in the prevention of diseases via modulation of anti-inflammatory, anti-oxidant and anti-tumour activity. Int J Clin Exp Med. 2014;7(3):483-91.
Rock W, Rosenblat M, Borochov-neori H, et al. Effects of date ( Phoenix dactylifera L., Medjool or Hallawi Variety) consumption by healthy subjects on serum glucose and lipid levels and on serum oxidative status: a pilot study. J Agric Food Chem. 2009;57(17):8010-7.
Saafi EB, Louedi M, Elfeki A, Zakhama A, Najjar MF, Hammami M, et al. Protective effect of date palm fruit extract (Phoenix dactylifera L.) on dimethoate induced-oxidative stress in rat liver. Exp Toxicol Pathol. 2011;63:433–41.
Salah A, Al-Maiman SA. Effect of date palm (Phoenix dactylifera) seed fibers on plasma lipids in rats. J King Saud Univ. 2005;17:117–23.
Sallal AK, Ashkenani A. Effect of date extract on growth and spore germination of Bacillus subtilis. Microbios. 1989;59:203–10.
Sallal AK, El-Teen KH, Abderrahman S. Effect of date extract on growth and morphology of Candida albicans. Biomed Lett. 1996;53:179–84.
Scott BC, Butler J, Halliwell B, Aruoma OI. Evaluation of the antioxidant actions of ferulic acid and catechins. Free Radic Res Commun. 1993;19:241–53.
Shraideh ZA, Abu-Elteen KH, Sallal AK. Ultrastructural effects of date extract on Candida albicans. Mycopathologia. 1998;142:119–23.
Souli A, Sebai H, Rtibi K, et al. Effects of dates pulp extract and palm sap (Phoenix dactylifera L.) on gastrointestinal transit activity in healthy rats. J Med Food. 2014;17(7):782-6.
Subash S, Braidy N, Essa MM, Al-Buraiki Z, Vaishnav R, Al-Adawi S, et al. Long term (15 months) dietary supplementation with pomegranates from Oman attenuates cognitive and behavioural deficts in a transgenic mice model of Alzheimer's disease. Nutrition. 2014
Subash S, Essa MM, Al-Asmi A, Al-Adawi S, Vaishnav R, Guillemin GJ. Effect of dietary supplementation of dates in Alzheimer's disease APPsw/2576 transgenic mice on oxidative stress and antioxidant status. Nutr Neurosci. 2014
Subash S, Essa MM, Al-Asmi A, Al-Adawi S, Vaishnav R. Chronic dietary supplementation of 4% figs on the modification of oxidative stress in Alzheimer's disease transgenic mouse model. Biomed Res Int 2014. 2014:546357. [PMC free article]
Subash S, Essa MM, Awlad-Thani K, Al-Adawi S, Al-Asmi A, Vaishnav R, et al. Memory deficits and learning skills improved in transgenic mouse model of Alzheimer's disease after date-rich diet supplementation. FASEB J. 2014;28 Suppl 1:8454.
Subash S, Essa MM, Braidy N, Al-Jabri A, Vaishnav R, Al-Adawi S, et al. Consumption of fig fruits grown in Oman can improve memory, anxiety, and learning skills in a transgenic mice model of Alzheimer's disease. Nutr Neurosci. 2014
Subash S, Essa MM, Braidy N, et al. Diet rich in date palm fruits improves memory, learning and reduces beta amyloid in transgenic mouse model of Alzheimer's disease. J Ayurveda Integr Med. 2015;6(2):111-20.
Sul D, Kim HS, Lee D, Joo SS, Hwang KW, Park SY. Protective effect of caffeic acid against beta-amyloid-induced neurotoxicity by the inhibition of calcium influx and tau phosphorylation. Life Sci. 2009;84:257–62.
Vayalil PK. Antioxidant and antimutagenic properties of aqueous extract of date fruit (Phoenix dactylifera L. Arecaceae) J Agric Food Chem. 2002;50:610–7.
Vayalil PK. Date fruits (Phoenix dactylifera Linn): an emerging medicinal food. Crit Rev Food Sci Nutr. 2012;52(3):249-71.
Vinson JA, Zubik L, Bose P, Samman N, Proch J. Dried fruits: Excellent in vitro and in vivo antioxidants. J Am Coll Nutr. 2005;24:44–50.
Yabe T, Hirahara H, Harada N, Ito N, Nagai T, Sanagi T, et al. Ferulic acid induces neural progenitor cell proliferation in vitro and in vivo. Neuroscience. 2010;165:515–24.
Yan JJ, Jung JS, Kim TK, Hasan A, Hong CW, Nam JS, et al. Protective effects of ferulic acid in amyloid precursor protein plus presenilin-1 transgenic mouse model of Alzheimer disease. Biol Pharm Bull. 2013;36:140–3.
Yasin BR, El-fawal HA, Mousa SA. Date (Phoenix dactylifera) Polyphenolics and Other Bioactive Compounds: A Traditional Islamic Remedy's Potential in Prevention of Cell Damage, Cancer Therapeutics and Beyond. Int J Mol Sci. 2015;16(12):30075-90.