{"doi":"10.3233/nha-220181","title":"Effects of a 4-week pecan-enriched diet on cognitive function in healthy older adults","abstract":"BACKGROUND: Pecans are rich in nutrients known to benefit cognition. OBJECTIVE: To examine the effect of daily pecan consumption on cognitive function in older adults. METHODS: In this randomized controlled trial, 42 adults (50–75y) either consumed 68 g of pecans/day for 4-weeks (pecan; n = 21) or avoided all nuts (control; n = 21). At pre- (V1) and post-intervention (V2) visits, cognitive function was assessed using a fluid composite score and four subtests from the NIH Toolbox-Cognitive Battery (NIHTB-CB) (Flanker Test, Digital Change Card Sort Test (DCCS), Picture Sequence Memory Test (PSMT), NIHTB Auditory Verbal Learning Test (RAVLT)) at fasting, 30- and 210-min after a high-saturated fat meal void of pecans. RESULTS: From V1 to V2, fasting and postprandial cognitive performance did not differ between groups. There were improvements in both groups for fasting fluid composite score ( p < 0.001) and performance on RAVLT, PSMT, DCCS, and Flanker tests from V1 to V2 ( p < 0.001 for all), with no differences between groups. Additionally, postprandial performance on RAVLT, PSMT, and Flanker tests improved at V2 ( p < 0.01 for each), with no differences between groups. CONCLUSIONS: A short-term pecan-enriched diet did not provide additional cognitive benefits in healthy older adults in the fasted or postprandial state.","journal":"Nutrition and Healthy Aging","year":2022,"id":279426,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":5,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9523,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2022-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":345705,"name":"Regis C. Pearson","orcid":"0000-0003-4704-920X","position":1,"is_corresponding":false},{"id":264230,"name":"Chad M. Paton","orcid":"0000-0001-8356-5303","position":2,"is_corresponding":false},{"id":520841,"name":"Nathan T. Jenkins","orcid":"0000-0002-1536-0514","position":3,"is_corresponding":false},{"id":615546,"name":"Jamie A. Cooper","orcid":"0000-0002-8265-4360","position":4,"is_corresponding":false},{"id":953507,"name":"Betsy Cogan","orcid":null,"position":0,"is_corresponding":true}],"reference_count":57,"raw_metadata":null,"created_at":"2026-07-19T00:28:55.546964Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}