Research

Energy balance

Fasted cardiovascular exercise is commonly recommended by bodybuilding coaches (67%), primarily to synergize with fat-burning supplements like yohimbine and clenbuterol, despite systematic reviews showing no superiority over fed cardio for fat loss in general populations.

Bodybuilding coaches frequently prescribe fasted cardio (67% of respondents) not because it burns more fat than fed cardio, but to allow the use of fat-burning supplements like yohimbine or clenbuterol. If you are not using these specific supplements, fasted cardio offers no fat-loss advantage over fed cardio. Focus on total weekly energy expenditure and recovery.

ModerateQualifiesMEDIUM confidence
Approximately 67% of participant coaches reported utilizing fasted cardiovascular exercise with their athletes. Common reasons for using fasted cardiovascular exercise included the concurrent use of fat-burning supplements as well as the athlete’s preferred time of day to complete cardiovascular exercise.
Alexa Rukstela et al. · Journal of Functional Morphology and Kinesiology · 2023

Why this rating

The practice is based on coach preference and supplement synergy, not direct evidence of superior fat loss in bodybuilders.

Source

Bodybuilding Coaching Strategies Meet Evidence-Based Recommendations: A Qualitative Approach

Alexa Rukstela et al. · Journal of Functional Morphology and Kinesiology · 2023

DOI 10.3390/jfmk8020084

cross_sectional · n=33Cited 16×
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DOI resolved against Crossref · corpus check 2026-06-10

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