Inclusion Criteria:  Gender/Sex - Male Age - 18 - 40 % body fat - ~18 - 26 % Health - Healthy (as determined by pre-participation questionnaires) Training Status - Regularly Exercising/Aerobically trained (3-4 aerobic training sessions/week, 3-5 hrs/week) Non-smokers Weight-stable (within 2 kg) for the past 6-months  Exclusion Criteria:  Gender/Sex - Female/Other Age - <18 - >40 Health - Deemed unable to perform exercise (assessed via readiness to exercise questionnaire) Current smoker. Medical Condition - Those with any previous diagnosis of; Osteoporosis/low bone mineral density, cardio-vascular disease, Diabetes Mellitus, Cerebrovascular Disease, blood-related illness/disorder, Asthma or other respiratory illness/disorder, Liver Disease, Kidney Disease, gastrointestinal disease, Eating Disorder or Disordered Eating. Those currently taking prescription medication or unwell with a cold or virus at the time of participation. Those unwilling to adhere to the study's methodological requirements (including adhering to alterations in diet and training - inc. alcohol abstention) from the day prior to intervention onset (24 hrs pre-intervention) to completion of follow-up assessments (day-11). Those following a restrictive diet (e.g. vegetarians/vegans) Any individuals with a food allergy/intolerance Training status - Does not train aerobically 3 + times/week (over past 6 months on average)