Purpose: Improving diet quality may lower chronic musculoskeletal pain (CMP) directly or through weight loss. This study examined whether a dietary intervention for weight-loss improved diet quality and CMP in adults with elevated adiposity. It also investigated whether adiposity mediated a relationship between diet quality and pain.
View Article and Find Full Text PDFStudy Objectives: Cortisol regulates various physiological systems and exhibits a circadian rhythm influenced by sleep-wake and light-dark cycles. The cumulative effects of consecutive night shifts and nighttime eating on cortisol dynamics are not well understood. This sub-study of a larger randomised controlled trial aimed to explore these relationships.
View Article and Find Full Text PDFBackground: Weight gain and an increased risk of developing type 2 diabetes are recognised consequences of night shift work. We tested the effectiveness of two modified intermittent fasting (IF) strategies compared with continuous energy restriction (CER) on weight loss and improvements in insulin resistance in night shift workers.
Methods: A parallel group, three-arm randomised superiority clinical trial (Melbourne and Adelaide) recruited night shift workers (aged ≥ 25 and ≤ 65 years) with overweight/obesity.
Background: Cardiovascular disease (CVD) remains a leading cause of death. Although dietary cholesterol from eggs has been a focus of dietary guidelines, recent evidence suggests that saturated fat has a greater impact on LDL cholesterol.
Objectives: This study examined the independent effects of dietary cholesterol and saturated fat on LDL concentrations.
Curr Dev Nutr
May 2025
Background: Antioxidants and nitric oxide (NO) precursors may improve endurance exercise performance by reducing oxidative stress and increasing NO production. Almonds, dried grapes, and cranberries (AGC) are good sources of antioxidants and NO precursors.
Objectives: To determine whether AGC consumption improved physiological responses and endurance cycling time-trial performance in response to training.
Context: Nut consumption is attributed to improvements in risk factors for cardiovascular disease (CVD), including high blood pressure (BP) and dyslipidemia. However, it is unclear whether these effects are altered with concurrent treatment with BP and lipid-lowering medication.
Objective: We sought to investigate the effects of the consumption of whole tree nuts and peanuts (collectively termed nuts) on BP and lipids, and whether BP and lipid-lowering medication use alters these effects.
Chronobiol Int
December 2024
Temporal patterns of eating and diet composition are influenced by factors including circadian preference (chronotype) and work schedule, yet their combined influence is unknown. We investigated relationships between chronotype, temporal eating patterns (duration of eating window (DEW), time of first (FEO) and last (LEO) eating occasions), and diet composition on workdays (WD) and work-free days (FD). Non-shift workers ( = 39) completed the Chrononutrition Questionnaire (CNQ) (age: 38.
View Article and Find Full Text PDFObjectives: The relationship between nut intake and disability-free survival (healthy lifespan) in later life is unclear. The objective was to evaluate the association between nut intake and disability-free survival in a cohort of adults aged ≥70 years, and whether this varied according to overall diet quality.
Methods: This prospective cohort study involved 9916 participants from the ASPREE Longitudinal Study of Older Persons.
Aims/hypothesis: Night-shift work causes circadian misalignment and impairs glucose metabolism. We hypothesise that food intake during night shifts may contribute to this phenomenon.
Methods: This open-label, multi-arm, single-site, parallel-group controlled trial involved a 6 day stay at the University of South Australia's sleep laboratory (Adelaide, SA, Australia).
Study Objectives: This protocol paper outlines the methods that will be used to examine the impact of altering meal timing on metabolism, cognitive performance, and mood during the simulated night shift.
Methods: Participants (male and female) will be recruited according to an a priori selected sample size to complete a 7-day within and between participant's laboratory protocol. Participants will be randomly assigned to one of the three conditions: meal at night or snack at night or no meal at night.
The irregular eating patterns of both shift workers and evening chronotypes adversely affect cardiometabolic health. A tool that conveniently captures temporal patterns of eating alongside an indicator of circadian rhythm such as chronotype will enable researchers to explore relationships with diverse health outcome measures. We aimed to investigate the test-retest reliability and convergent validity of a Chrononutrition Questionnaire (CNQ) that captures temporal patterns of eating and chronotype in the general population (non-shift workers, university students, retirees, unemployed individuals) and shift work population.
View Article and Find Full Text PDFObesity (Silver Spring)
October 2023
Diet quality often changes as shift workers adjust to atypical work schedules, however, limited research exists examining the early effects of starting rotating shift work on diet and body composition. This study explored dietary behavior changes occurring in graduate paramedics during the first year of exposure to rotating shift work, and investigated dietary intake, diet quality and anthropometric changes over two years. Participants from a graduate paramedic cohort in Melbourne, Australia were approached after two years of shift work for study inclusion.
View Article and Find Full Text PDFThe negative impact of an unhealthy diet on the shiftworker population has been well-documented. However, little evidence exists on the underlying reasons for unhealthy eating behaviours and the existing barriers to healthy eating withinshiftwork environments. This qualitative study investigated the dietary behaviours reported by shiftworkers through Facebook comments.
View Article and Find Full Text PDFWorkers employed in rotating shift schedules are at a higher metabolic risk compared with those in regular day and fixed shift schedules; however, the contribution of diet is unclear. This systematic review aimed to investigate how rotating shift work schedules affect dietary energy intake and dietary patterns compared with regular day and fixed shift schedules. In addition, intraperson energy intake and dietary pattern comparisons within rotating shift schedules were investigated.
View Article and Find Full Text PDFEur J Nutr
March 2023
Womens Health Rep (New Rochelle)
June 2022
Purpose Of Review: The aim of this short review is to provide an updated commentary on the current literature examining the impact of meal timing on obesity and weight gain in adults. The potential mechanisms, including novel and emerging factors, behind timing of food intake across the 24-h period in the development of obesity, and dietary strategies manipulating meal timing to ameliorate weight gain are also explored.
Recent Findings: Dietary patterns that feature meal timing outside of the regular daytime hours can contribute to circadian disruption as food is metabolised in opposition to internal daily rhythms and can feedback on the timekeeping mechanisms setting these rhythms.