The primary objective is to show that multiple transportable carbohydrate ingestion is more effective in improving endurance performance compared to single transportable carbohydrate ingestion.

Inclusion Criteria:

• Males aged 18 to 60 years

• A history of competitive triathlon performance (≥ 2 years)

• Participation in at least four competitive triathlon events within the past 2 years

• Be in regular training for triathlon events

• A personal best time for a standard ½ Ironman race (1.9 km swim, 90 km cycle, 21.1 km run) in the last year of either:

  • ≤ 6 h 00 min, for men aged 18-40 years
  • or ≤6 h 05 min for men aged 40-50 years
  • or ≤6 h 20 min for men aged 50-60 years

• Alternatively, if not competed in ½ Ironman in the last year, at least one standard distance triathlon (1.5 km swim, 40 km cycle, 10 km run) within the last 12 months:

  • ≤2 h 13 min, for men aged 18-40 years
  • or ≤2 h 18 min for men aged 40-50 years
  • or ≤2 h 23 min for men aged 50-60 years

• Available to compete in the ½ Ironman events and complete all study requirements

• Experienced in using carbohydrate supplementation, as gels, bars, and drinks in training/racing, specifically at rates ≥60-90g/h)

• Experience of specific formulations may include both or only multiple and single transportable carbohydrates, thus a full assessment would be made prior to recruitment to ensure balance during randomization and account for any association with the primary outcome

• Obtained his (or his legal representative's) informed consent.

Exclusion Criteria:

• Failure to meet health requirements defined in the Health Questionnaire
• Prior known fructose intolerance
• Wheat intolerance or other precluding food or packaging-related allergies
• An existing injury affecting ability to race to best ability
• A chronic injury that may affect ability to complete the races
• Unable to carry out performance assessments and questionnaires correctly
• Unable to tolerate the treatment during the familiarization sessions
• Taking medications thought to interfere with the study outcomes
• Currently participating or having participated in another clinical study during the last four weeks prior to the beginning of this study