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To investigate this, we systematically evaluated evidence on the effects of discretionary snack consumption on weight status, energy intake, and diet quality. Articles involving discretionary snacks reported against the outcome measures of any primary, peer\u2010reviewed study using human participants from free\u2010living conditions for all age groups were included. A total of 14,780 titles were identified and 40 eligible publications were identified. Three key outcomes were reported: weight status (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200935), energy intake (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200911), and diet quality (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u20093). Increased discretionary snack consumption may contribute modestly to energy intake, however, there is a lack of consistent associations with increased weight\/BMI. Although cross\u2010sectional analyses offered conflicting findings, longitudinal studies in adults showed a consistent positive relationship between discretionary snack intake and increasing weight or body mass index. Given that experimental findings suggest reducing the size of discretionary snacks could lead to decreased consumption and subsequent energy intake, food policy makers and manufacturers may find it valuable to consider altering the portion and\/or packaging size of discretionary snacks.\n                  <\/jats:p>","DOI":"10.1111\/obr.13693","type":"journal-article","created":{"date-parts":[[2024,1,16]],"date-time":"2024-01-16T03:43:58Z","timestamp":1705376638000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["The effect of discretionary snack consumption on overall energy intake, weight status, and diet quality: A systematic review"],"prefix":"10.1111","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4713-1185","authenticated-orcid":false,"given":"Carlton B.","family":"Cooke","sequence":"first","affiliation":[{"name":"Carnegie School of Sport Leeds Beckett University  Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4929-499X","authenticated-orcid":false,"given":"Hannah C.","family":"Greatwood","sequence":"additional","affiliation":[{"name":"Carnegie School of Sport Leeds Beckett University  Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deaglan","family":"McCullough","sequence":"additional","affiliation":[{"name":"Carnegie School of Sport Leeds Beckett University  Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4645-0077","authenticated-orcid":false,"given":"Richard","family":"Kirwan","sequence":"additional","affiliation":[{"name":"School of Sports and Exercise Science Liverpool John Moores University  Liverpool UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lauren C.","family":"Duckworth","sequence":"additional","affiliation":[{"name":"Carnegie School of Sport Leeds Beckett University  Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louise","family":"Sutton","sequence":"additional","affiliation":[{"name":"Carnegie School of Sport Leeds Beckett University  Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul J.","family":"Gately","sequence":"additional","affiliation":[{"name":"Carnegie School of Sport Leeds Beckett University  Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,1,16]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140\u20106736(16)30054\u2010X"},{"key":"e_1_2_9_3_1","unstructured":"World Health Organisation.WHO EUROPEAN REGIONAL OBESITY REPORT 2022. 2022. 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