Attention

    Last Updated: October 13, 2024

    The ability to keep focus on chosen targets, the clinical lack of attention is ADD (or ADHD if hyperactivity exists); Attention and/or Focus may be affected by supplements listed on this page.

    examine-databaseExamine Database
    6,523 participants in 83 trials

    Examine Database: Attention

    Bacopa Monnieri
    D
    No effect
    Theanine
    B
    Small Improvement
    Cannabis
    D
    No effect
    Ginkgo Biloba
    L-Tyrosine
    Binaural Beats
    L-Carnitine
    Rhodiola Rosea
    Phosphatidylserine
    Iron
    Caffeine
    Fish Oil
    Cocoa Extract
    Panax Ginseng (Korean Ginseng)
    Ashwagandha
    Mediterranean Diet
    Grape Juice
    Ketogenic Diet
    Black seed
    Gotu Kola
    Saffron
    Peppermint
    D-Serine
    Pycnogenol
    Red Clover Extract
    Nicotine
    Cannabidiol (CBD)
    Melatonin
    CDP-Choline
    Lemon Balm
    Kudzu
    S-adenosylmethionine
    Creatine

    Research FeedRead all studies

    Examine Database References

    1. CDP-Choline - Erin McGlade, Allison Locatelli, Julia Hardy, Toshikazu Kamiya, Masahiko Morita, Koji Morishita, Yoichiro Sugimura, Deborah Yurgelun-ToddImproved Attentional Performance Following Citicoline Administration in Healthy Adult WomenFood and Nutritional Sciences.()
    2. Creatine - McMorris T, Harris RC, Swain J, Corbett J, Collard K, Dyson RJ, Dye L, Hodgson C, Draper NEffect of creatine supplementation and sleep deprivation, with mild exercise, on cognitive and psychomotor performance, mood state, and plasma concentrations of catecholamines and cortisolPsychopharmacology (Berl).(2006 Mar)
    3. Rhodiola Rosea - Noreen EE, Buckley JG, Lewis SL, Brandauer J, Stuempfle KJThe effects of an acute dose of Rhodiola rosea on endurance exercise performanceJ Strength Cond Res.(2013 Mar)
    4. Theanine - Shinsuke Hidese, Miho Ota, Chisato Wakabayashi, Takamasa Noda, Hayato Ozawa, Tsutomu Okubo, Hiroshi KunugiEffects of chronic l-theanine administration in patients with major depressive disorder: an open-label studyActa Neuropsychiatr.(2017 Apr)
    5. Ginkgo Biloba - Attia A, Rapp SR, Case LD, D'Agostino R, Lesser G, Naughton M, McMullen K, Rosdhal R, Shaw EGPhase II study of Ginkgo biloba in irradiated brain tumor patients: effect on cognitive function, quality of life, and moodJ Neurooncol.(2012 Sep)
    6. Theanine - Simon P Kelly, Manuel Gomez-Ramirez, Jennifer L Montesi, John J FoxeL-theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performanceJ Nutr.(2008 Aug)
    7. Cocoa Extract - Francis ST, Head K, Morris PG, Macdonald IAThe effect of flavanol-rich cocoa on the fMRI response to a cognitive task in healthy young peopleJ Cardiovasc Pharmacol.(2006)
    8. Ketogenic Diet - Ranjan A, Schmidt S, Damm-Frydenberg C, Holst JJ, Madsbad S, Nørgaard KShort-term effects of a low carbohydrate diet on glycaemic variables and cardiovascular risk markers in patients with type 1 diabetes: A randomized open-label crossover trialDiabetes Obes Metab.(2017 Oct)
    9. Cannabis - Ruth E Cooper, Emma Williams, Seth Seegobin, Charlotte Tye, Jonna Kuntsi, Philip AshersonCannabinoids in attention-deficit/hyperactivity disorder: A randomised-controlled trialEur Neuropsychopharmacol.(2017 Aug)
    10. L-Carnitine - Malaguarnera M, Bella R, Vacante M, Giordano M, Malaguarnera G, Gargante MP, Motta M, Mistretta A, Rampello L, Pennisi GAcetyl-L-carnitine reduces depression and improves quality of life in patients with minimal hepatic encephalopathyScand J Gastroenterol.(2011 Jun)
    11. Bacopa Monnieri - Sathyanarayanan V, Thomas T, Einöther SJ, Dobriyal R, Joshi MK, Krishnamachari SBrahmi for the better? New findings challenging cognition and anti-anxiety effects of Brahmi (Bacopa monniera) in healthy adultsPsychopharmacology (Berl).(2013 Jan 26)
    12. L-Tyrosine - Deijen JB, Wientjes CJ, Vullinghs HF, Cloin PA, Langefeld JJTyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training courseBrain Res Bull.(1999 Jan 15)
    13. Bacopa Monnieri - Calabrese C, Gregory WL, Leo M, Kraemer D, Bone K, Oken BEffects of a standardized Bacopa monnieri extract on cognitive performance, anxiety, and depression in the elderly: a randomized, double-blind, placebo-controlled trialJ Altern Complement Med.(2008 Jul)
    14. Red Clover Extract - Howes JB, Bray K, Lorenz L, Smerdely P, Howes LGThe effects of dietary supplementation with isoflavones from red clover on cognitive function in postmenopausal womenClimacteric.(2004 Mar)
    15. Ashwagandha - Choudhary D, Bhattacharyya S, Bose SEfficacy and Safety of Ashwagandha (Withania somnifera (L.) Dunal) Root Extract in Improving Memory and Cognitive FunctionsJ Diet Suppl.(2017 Nov 2)
    16. L-Tyrosine - A B Dollins, L P Krock, W F Storm, R J Wurtman, H R LiebermanL-tyrosine ameliorates some effects of lower body negative pressure stressPhysiol Behav.(1995 Feb)
    17. Saffron - Sara Baziar, Ali Aqamolaei, Ebrahim Khadem, Seyyed Hosein Mortazavi, Sina Naderi, Erfan Sahebolzamani, Amirhosein Mortezaei, Shakiba Jalilevand, Mohammad-Reza Mohammadi, Mahsa Shahmirzadi, Shahin AkhondzadehCrocus sativus L. Versus Methylphenidate in Treatment of Children with Attention-Deficit/Hyperactivity Disorder: A Randomized, Double-Blind Pilot StudyJ Child Adolesc Psychopharmacol.(2019 Apr)
    18. Bacopa Monnieri - Sarah Benson, Luke A Downey, Con Stough, Mark Wetherell, Andrea Zangara, Andrew ScholeyAn acute, double-blind, placebo-controlled cross-over study of 320 mg and 640 mg doses of Bacopa monnieri (CDRI 08) on multitasking stress reactivity and moodPhytother Res.(2014 Apr)
    19. Theanine - F L Dodd, D O Kennedy, L M Riby, C F Haskell-RamsayA double-blind, placebo-controlled study evaluating the effects of caffeine and L-theanine both alone and in combination on cerebral blood flow, cognition and moodPsychopharmacology (Berl).(2015 Jul)
    20. Binaural Beats - Susan Kennel, Ann Gill Taylor, Debra Lyon, Cheryl BourguignonPilot feasibility study of binaural auditory beats for reducing symptoms of inattention in children and adolescents with attention-deficit/hyperactivity disorderJ Pediatr Nurs.(2010 Feb)
    21. L-Tyrosine - Banderet LE, Lieberman HRTreatment with tyrosine, a neurotransmitter precursor, reduces environmental stress in humansBrain Res Bull.(1989 Apr)
    22. Cannabis - Divya Ramesh, Margaret Haney, Ziva D CooperMarijuana's dose-dependent effects in daily marijuana smokersExp Clin Psychopharmacol.(2013 Aug)
    23. Ginkgo Biloba - Kennedy DO, Haskell CF, Mauri PL, Scholey ABAcute cognitive effects of standardised Ginkgo biloba extract complexed with phosphatidylserineHum Psychopharmacol.(2007 Jun)
    24. Cannabis - Ziva D Cooper, Margaret HaneyOpioid antagonism enhances marijuana's effects in heavy marijuana smokersPsychopharmacology (Berl).(2010 Aug)
    25. Cocoa Extract - Crews WD Jr, Harrison DW, Wright JWA double-blind, placebo-controlled, randomized trial of the effects of dark chocolate and cocoa on variables associated with neuropsychological functioning and cardiovascular health: clinical findings from a sample of healthy, cognitively intact older adultsAm J Clin Nutr.(2008 Apr)
    26. Fish Oil - Jane Pei-Chen Chang, Kuan-Pin Su, Valeria Mondelli, Senthil Kumaran Satyanarayanan, Hui-Ting Yang, Yi-Ju Chiang, Hui-Ting Chen, Carmine M ParianteHigh-dose eicosapentaenoic acid (EPA) improves attention and vigilance in children and adolescents with attention deficit hyperactivity disorder (ADHD) and low endogenous EPA levelsTransl Psychiatry.(2019 Nov 20)
    27. Iron - Favrat B, Balck K, Breymann C, Hedenus M, Keller T, Mezzacasa A, Gasche CEvaluation of a single dose of ferric carboxymaltose in fatigued, iron-deficient women--PREFER a randomized, placebo-controlled studyPLoS One.(2014 Apr 21)
    28. Cannabis - Anthony N Nicholson, Claire Turner, Barbara M Stone, Philip J RobsonEffect of Delta-9-tetrahydrocannabinol and cannabidiol on nocturnal sleep and early-morning behavior in young adultsJ Clin Psychopharmacol.(2004 Jun)
    29. Panax Ginseng (Korean Ginseng) - L D'Angelo, R Grimaldi, M Caravaggi, M Marcoli, E Perucca, S Lecchini, G M Frigo, A CremaA double-blind, placebo-controlled clinical study on the effect of a standardized ginseng extract on psychomotor performance in healthy volunteersJ Ethnopharmacol.(Apr-May 1986)
    30. Binaural Beats - Hessel Engelbregt, Nora Meijburg, Marjolein Schulten, Oliver Pogarell, Jan Berend DeijenThe Effects of Binaural and Monoaural Beat Stimulation on Cognitive Functioning in Subjects with Different Levels of EmotionalityAdv Cogn Psychol.(2019 Aug 30)
    31. Gotu Kola - Jana U, Sur TK, Maity LN, Debnath PK, Bhattacharyya DA clinical study on the management of generalized anxiety disorder with Centella asiaticaNepal Med Coll J.(2010 Mar)
    32. Bacopa Monnieri - Navneet Kumar, L G Abichandani, Vijay Thawani, K J Gharpure, M U R Naidu, G Venkat RamanaEfficacy of Standardized Extract of Bacopa monnieri (Bacognize®) on Cognitive Functions of Medical Students: A Six-Week, Randomized Placebo-Controlled TrialEvid Based Complement Alternat Med.(2016)
    33. Cannabis - Justin Matheson, Robert E Mann, Beth Sproule, Marilyn A Huestis, Christine M Wickens, Gina Stoduto, Tony P George, Jürgen Rehm, Bernard Le Foll, Bruna BrandsAcute and residual mood and cognitive performance of young adults following smoked cannabisPharmacol Biochem Behav.(2020 Jul)
    34. Black seed - Bin Sayeed MS, Asaduzzaman M, Morshed H, Hossain MM, Kadir MF, Rahman MRThe effect of Nigella sativa Linn. seed on memory, attention and cognition in healthy human volunteersJ Ethnopharmacol.(2013 Jul 30)
    35. Ginkgo Biloba - Wheatley DTriple-blind, placebo-controlled trial of Ginkgo biloba in sexual dysfunction due to antidepressant drugsHum Psychopharmacol.(2004 Dec)
    36. Binaural Beats - Lorenza S Colzato, Hayley Barone, Roberta Sellaro, Bernhard HommelMore attentional focusing through binaural beats: evidence from the global-local taskPsychol Res.(2017 Jan)
    37. Fish Oil - Antypa N, Van der Does AJ, Smelt AH, Rogers RDOmega-3 fatty acids (fish-oil) and depression-related cognition in healthy volunteersJ Psychopharmacol.(2009 Sep)
    38. Bacopa Monnieri - Luke A Downey, James Kean, Fiona Nemeh, Angela Lau, Alex Poll, Rebecca Gregory, Margaret Murray, Johanna Rourke, Brigit Patak, Matthew P Pase, Andrea Zangara, Justine Lomas, Andrew Scholey, Con StoughAn acute, double-blind, placebo-controlled crossover study of 320 mg and 640 mg doses of a special extract of Bacopa monnieri (CDRI 08) on sustained cognitive performancePhytother Res.(2013 Sep)
    39. Peppermint - Mark Moss, Steven Hewitt, Lucy Moss, Keith WesnesModulation of cognitive performance and mood by aromas of peppermint and ylang-ylangInt J Neurosci.(2008 Jan)
    40. Grape Juice - Haskell-Ramsay CF, Stuart RC, Okello EJ, Watson AWCognitive and mood improvements following acute supplementation with purple grape juice in healthy young adultsEur J Nutr.(2017 Dec)
    41. Panax Ginseng (Korean Ginseng) - Pierre-Antoine Mariage, Areg Hovhannisyan, Alexander G PanossianEfficacy of Panax ginseng Meyer Herbal Preparation HRG80 in Preventing and Mitigating Stress-Induced Failure of Cognitive Functions in Healthy Subjects: A Pilot, Randomized, Double-Blind, Placebo-Controlled Crossover TrialPharmaceuticals (Basel).(2020 Mar 29)
    42. L-Carnitine - Mariano Malaguarnera, Giovanni Pistone, Rampello Elvira, Carmelo Leotta, Linda Scarpello, Rampello LiborioEffects of L-carnitine in patients with hepatic encephalopathyWorld J Gastroenterol.(2005 Dec 7)
    43. L-Tyrosine - R D Elwes, H Crewes, L P Chesterman, B Summers, P Jenner, C D Binnie, J D ParkesTreatment of narcolepsy with L-tyrosine: double-blind placebo-controlled trialLancet.(1989 Nov 4)
    44. Fish Oil - Widenhorn-Müller K, Schwanda S, Scholz E, Spitzer M, Bode HEffect of supplementation with long-chain ω-3 polyunsaturated fatty acids on behavior and cognition in children with attention deficit/hyperactivity disorder (ADHD): a randomized placebo-controlled intervention trialProstaglandins Leukot Essent Fatty Acids.(2014 Jul-Aug)
    45. Bacopa Monnieri - Tatimah Peth-Nui, Jintanaporn Wattanathorn, Supaporn Muchimapura, Terdthai Tong-Un, Nawanant Piyavhatkul, Poonsri Rangseekajee, Kornkanok Ingkaninan, Sakchai Vittaya-AreekulEffects of 12-Week Bacopa monnieri Consumption on Attention, Cognitive Processing, Working Memory, and Functions of Both Cholinergic and Monoaminergic Systems in Healthy Elderly VolunteersEvid Based Complement Alternat Med.(2012)
    46. Nicotine - Elizabeth Ralevski, Edward B Perry Jr, D Cyril D'Souza, Vanessa Bufis, Jacqueline Elander, Diana Limoncelli, Michael Vendetti, Erica Dean, Thomas B Cooper, Sherry McKee, Ismene PetrakisPreliminary findings on the interactive effects of IV ethanol and IV nicotine on human behavior and cognition: a laboratory studyNicotine Tob Res.(2012 May)
    47. L-Tyrosine - Deijen JB, Orlebeke JFEffect of tyrosine on cognitive function and blood pressure under stressBrain Res Bull.(1994)
    48. L-Carnitine - Vermeulen RC, Scholte HRExploratory open label, randomized study of acetyl- and propionylcarnitine in chronic fatigue syndromePsychosom Med.(2004 Mar-Apr)
    49. Melatonin - Rimmele U, Spillmann M, Bärtschi C, Wolf OT, Weber CS, Ehlert U, Wirtz PHMelatonin improves memory acquisition under stress independent of stress hormone releasePsychopharmacology (Berl).(2009 Mar)
    50. Rhodiola Rosea - Olsson EM, von Schéele B, Panossian AGA randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract shr-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatiguePlanta Med.(2009 Feb)
    51. Bacopa Monnieri - Grace M McPhee, Luke A Downey, Keith A Wesnes, Con StoughThe Neurocognitive Effects of Bacopa monnieri and Cognitive Training on Markers of Brain Microstructure in Healthy Older AdultsFront Aging Neurosci.(2021 Feb 22)
    52. Ginkgo Biloba - Brautigam MR, Blommaert FA, Verleye G, Castermans J, Jansen Steur EN, Kleijnen JTreatment of age-related memory complaints with Ginkgo biloba extract: a randomized double blind placebo-controlled studyPhytomedicine.(1998 Dec)
    53. Pycnogenol - Luzzi R, Belcaro G, Zulli C, Cesarone MR, Cornelli U, Dugall M, Hosoi M, Feragalli BPycnogenol® supplementation improves cognitive function, attention and mental performance in studentsPanminerva Med.(2011 Sep)
    54. Ginkgo Biloba - Mix JA, Crews WD JrAn examination of the efficacy of Ginkgo biloba extract EGb761 on the neuropsychologic functioning of cognitively intact older adultsJ Altern Complement Med.(2000 Jun)
    55. Bacopa Monnieri - Roodenrys S, Booth D, Bulzomi S, Phipps A, Micallef C, Smoker JChronic effects of Brahmi (Bacopa monnieri) on human memoryNeuropsychopharmacology.(2002 Aug)
    56. Ashwagandha - Chengappa KN, Bowie CR, Schlicht PJ, Fleet D, Brar JS, Jindal RRandomized placebo-controlled adjunctive study of an extract of withania somnifera for cognitive dysfunction in bipolar disorderJ Clin Psychiatry.(2013 Nov)
    57. Theanine - Akiko Higashiyama, Hla Hla Htay, Makoto Ozeki, Lekh R. Juneja, Mahendra P. KapoorEffects of l-theanine on attention and reaction time responseJournal of Functional Foods.()
    58. Binaural Beats - John L. Carter and Harold L. RussellA Pilot Investigation of Auditory and Visual Entrainment of Brain Wave Activity in Learning Disabled BoysTexas Researcher.()
    59. Theanine - John J Foxe, Kristen P Morie, Peter J Laud, Matthew J Rowson, Eveline A de Bruin, Simon P KellyAssessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention taskNeuropharmacology.(2012 Jun)
    60. L-Carnitine - Giuseppe Bersani, Giuseppe Meco, Alessandro Denaro, Damien Liberati, Chiara Colletti, Raffaella Nicolai, Francesco Saverio Bersani, Aleardo KoverechL-Acetylcarnitine in dysthymic disorder in elderly patients: a double-blind, multicenter, controlled randomized study vs. fluoxetineEur Neuropsychopharmacol.(2013 Oct)
    61. S-adenosylmethionine - Levkovitz Y, Alpert JE, Brintz CE, Mischoulon D, Papakostas GIEffects of S-adenosylmethionine augmentation of serotonin-reuptake inhibitor antidepressants on cognitive symptoms of major depressive disorderJ Affect Disord.(2012 Feb)
    62. Bacopa Monnieri - Harshad C, et alEfficacy and Tolerability of BacoMind® on Memory Improvement in Elderly Participants - A Double Blind Placebo Controlled StudyJ Pharmacol Toxicol.()
    63. Rhodiola Rosea - Ross SMRhodiola rosea (SHR-5), Part I: a proprietary root extract of Rhodiola rosea is found to be effective in the treatment of stress-related fatigueHolist Nurs Pract.(2014 Mar-Apr)
    64. L-Carnitine - Van Oudheusden LJ, Scholte HREfficacy of carnitine in the treatment of children with attention-deficit hyperactivity disorderProstaglandins Leukot Essent Fatty Acids.(2002 Jul)
    65. Rhodiola Rosea - De Bock K, Eijnde BO, Ramaekers M, Hespel PAcute Rhodiola rosea intake can improve endurance exercise performanceInt J Sport Nutr Exerc Metab.(2004 Jun)
    66. Cannabis - Timo Woelfl, Cathrin Rohleder, Juliane K Mueller, Bettina Lange, Anne Reuter, Anna Maria Schmidt, Dagmar Koethe, Martin Hellmich, F Markus LewekeEffects of Cannabidiol and Delta-9-Tetrahydrocannabinol on Emotion, Cognition, and Attention: A Double-Blind, Placebo-Controlled, Randomized Experimental Trial in Healthy VolunteersFront Psychiatry.(2020 Nov 13)
    67. Kudzu - Woo J, Lau E, Ho SC, Cheng F, Chan C, Chan AS, Haines CJ, Chan TY, Li M, Sham AComparison of Pueraria lobata with hormone replacement therapy in treating the adverse health consequences of menopauseMenopause.(2003 Jul-Aug)
    68. Lemon Balm - Kennedy DO, Wake G, Savelev S, Tildesley NT, Perry EK, Wesnes KA, Scholey ABModulation of mood and cognitive performance following acute administration of single doses of Melissa officinalis (Lemon balm) with human CNS nicotinic and muscarinic receptor-binding propertiesNeuropsychopharmacology.(2003 Oct)
    69. Theanine - Shinsuke Hidese, Shintaro Ogawa, Miho Ota, Ikki Ishida, Zenta Yasukawa, Makoto Ozeki, Hiroshi KunugiEffects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled TrialNutrients.(2019 Oct 3)
    70. Binaural Beats - Jeong-Hwan Lim, Hyeri Kim, Chuljin Jeon, Soohyun ChoThe effects on mental fatigue and the cognitive function of mechanical massage and binaural beats (brain massage) provided by massage chairsComplement Ther Clin Pract.(2018 Aug)
    71. D-Serine - Levin R, Dor-Abarbanel AE, Edelman S, Durrant AR, Hashimoto K, Javitt DC, Heresco-Levy UBehavioral and cognitive effects of the N-methyl-D-aspartate receptor co-agonist D-serine in healthy humans: initial findingsJ Psychiatr Res.(2015 Feb)
    72. Cocoa Extract - Pase MP, Scholey AB, Pipingas A, Kras M, Nolidin K, Gibbs A, Wesnes K, Stough CCocoa polyphenols enhance positive mood states but not cognitive performance: a randomized, placebo-controlled trialJ Psychopharmacol.(2013 May)
    73. Theanine - Crystal F Haskell, David O Kennedy, Anthea L Milne, Keith A Wesnes, Andrew B ScholeyThe effects of L-theanine, caffeine and their combination on cognition and moodBiol Psychol.(2008 Feb)
    74. Bacopa Monnieri - James M Brimson, Sirikalaya Brimson, Mani Iyer Prasanth, Premrutai Thitilertdecha, Dicson Sheeja Malar, Tewin TencomnaoThe effectiveness of Bacopa monnieri (Linn.) Wettst. as a nootropic, neuroprotective, or antidepressant supplement: analysis of the available clinical dataSci Rep.(2021 Jan 12)
    75. Theanine - Yoshitake Baba, Shun Inagaki, Sae Nakagawa, Toshiyuki Kaneko, Makoto Kobayashi, Takanobu TakiharaEffects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled StudyJ Med Food.(2021 Apr)
    76. Theanine - Dassanayake TL, Kahathuduwa CN, Weerasinghe VSL-theanine improves neurophysiological measures of attention in a dose-dependent manner: a double-blind, placebo-controlled, crossover study.Nutr Neurosci.(2022-Apr)
    77. Caffeine - Ker K, Edwards PJ, Felix LM, Blackhall K, Roberts ICaffeine for the prevention of injuries and errors in shift workers.Cochrane Database Syst Rev.(2010-May-12)
    78. Caffeine - Irwin C, Khalesi S, Desbrow B, McCartney DEffects of acute caffeine consumption following sleep loss on cognitive, physical, occupational and driving performance: A systematic review and meta-analysis.Neurosci Biobehav Rev.(2020-Jan)
    79. Caffeine - Lorenzo Calvo J, Fei X, Domínguez R, Pareja-Galeano HCaffeine and Cognitive Functions in Sports: A Systematic Review and Meta-Analysis.Nutrients.(2021-Mar-06)
    80. Iron - Gutema BT, Sorrie MB, Megersa ND, Yesera GE, Yeshitila YG, Pauwels NS, De Henauw S, Abbeddou SEffects of iron supplementation on cognitive development in school-age children: Systematic review and meta-analysis.PLoS One.(2023)
    81. Iron - Chen Z, Yang H, Wang D, Sudfeld CR, Zhao A, Xin Y, Chen JC, Fawzi WW, Xing Y, Li ZEffect of Oral Iron Supplementation on Cognitive Function among Children and Adolescents in Low- and Middle-Income Countries: A Systematic Review and Meta-Analysis.Nutrients.(2022-Dec-15)
    82. Mediterranean Diet - David G Loughrey, Sara Lavecchia, Sabina Brennan, Brian A Lawlor, Michelle E KellyThe Impact of the Mediterranean Diet on the Cognitive Functioning of Healthy Older Adults: A Systematic Review and Meta-AnalysisAdv Nutr.(2017 Jul 14)
    83. Phosphatidylserine - Alisha Bruton, Joy Nauman, Douglas Hanes, Melissa Gard, Angela SendersPhosphatidylserine for the Treatment of Pediatric Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-AnalysisJ Altern Complement Med.(2021 Feb 4)