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    Pre-sleep casein protein ingestion does not impact next-day appetite, energy intake and metabolism in older individuals

    Morehen, S, Smeuninx, B, Perkins, M, Morgan, P ORCID logoORCID: https://orcid.org/0000-0001-7254-4507 and Breen, L (2019) Pre-sleep casein protein ingestion does not impact next-day appetite, energy intake and metabolism in older individuals. Nutrients, 12 (1). 90. ISSN 2072-6643

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    Abstract

    Maintaining adequate daily protein intake is important to maintain muscle mass throughout the lifespan. In this regard, the overnight period has been identified as a window of opportunity to increase protein intake in the elderly. However, it is unknown whether pre-sleep protein intake affects next-morning appetite and, consequently, protein intake. Therefore, the purpose of the current study was to investigate the effects of a pre-sleep protein drink on next-morning appetite, energy intake and metabolism. Twelve older individuals (eight males, four females; age: 71.3 ± 4.2 years) took part in a single-blind randomised cross-over study. After a standardised dinner, participants consumed either a 40-g protein drink, isocaloric maltodextrin drink, or placebo water control before bedtime. Next-morning appetite, energy intake, resting metabolic rate (RMR), respiratory exchange rate (RER), and plasma acylated ghrelin, leptin, glucose, and insulin concentrations were assessed. No between-group differences were observed for appetite and energy intake at breakfast. Furthermore, RMR, RER, and assessed blood markers were not significantly different between any of the treatment groups. Pre-sleep protein intake does not affect next-morning appetite and energy intake and is therefore a viable strategy to increase daily protein intake in an older population.

    Item Type: Article (Article)
    Peer-reviewed: Yes
    Date Deposited: 17 Nov 2023 16:04
    Publisher: MDPI AG
    Additional Information: This is an open access article published in Nutrients, by MDPI.
    Divisions: Faculties > Science and Engineering
    Subject terms: Science & Technology, Life Sciences & Biomedicine, Nutrition & Dietetics, pre-sleep protein, sarcopenia, ageing, AMINO-ACID SUPPLEMENTATION, FOOD-INTAKE, HIGH-CARBOHYDRATE, SYNTHESIS RATES, HEALTHY OLDER, MUSCLE MASS, SARCOPENIA, GHRELIN, INSULIN, PLASMA, Humans, Insulin, Leptin, Blood Glucose, Caseins, Basal Metabolism, Cross-Over Studies, Single-Blind Method, Feeding Behavior, Appetite, Sleep, Energy Metabolism, Energy Intake, Time Factors, Beverages, Aged, Female, Male, Ghrelin, Sarcopenia, Breakfast, ageing, pre-sleep protein, sarcopenia, Aged, Appetite, Basal Metabolism, Beverages, Blood Glucose, Breakfast, Caseins, Cross-Over Studies, Energy Intake, Energy Metabolism, Feeding Behavior, Female, Ghrelin, Humans, Insulin, Leptin, Male, Sarcopenia, Single-Blind Method, Sleep, Time Factors, 0908 Food Sciences, 1111 Nutrition and Dietetics
    URI: https://mmu-uat.leaf.cosector.com/id/eprint/633287
    DOI: https://doi.org/10.3390/nu12010090
    ISSN 2072-6643
    e-ISSN 2072-6643

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