Measuring the Cardio-metabolic Response to Diet Quality Modification During Night Work.

Inclusion Criteria: * Current night shift worker (defined as a period of work between 11pm and 6am) working regular blocks of 3 night shifts. * Body mass index between 18.5 and 35 kg/m2. * Weight stable (no weight change by more than 3 kg in the last 2 months). * Not a regular smoker (1 or more cigarettes per day) and would be willing not to smoke for the duration of the study. * Not pregnant or breastfeeding. * Not diagnosed with heart attack, stroke, angina, thrombosis, liver or kidney diseases, diabetes, chronic gastrointestinal disorder or cancer. * Not currently taking medication to stabilize blood glucose (e.g. acarbose, metformin or sulfonylureas). * Not started new medication within the last 3 months likely to interfere with energy metabolism, appetite regulation and hormonal balance, including: anti-inflammatory drugs or steroids, antibiotics, androgens, phenytoin, erythromycin or thyroid hormones. * Do not take medication for blood pressure e.g. diuretics, (beta-blockers, Ca-channel, ACE inhibitors, Angiotensin Receptor blockers) * Do not have diagnosed hypertension (high blood pressure, systolic blood pressure that is higher than 180 mmHg and or diastolic blood pressure that is higher than 110 mmHg). * Not diagnosed with arterial fibrillation or any other condition that affects heart rate (e.g. arrhythmia). * No food intolerance, allergies, hypersensitivity or follow any dietary restrictions (e.g. gluten intolerance, coeliac, lactose intolerance, vegan or vegetari…