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Patients reported nausea and dizziness after consuming an isocaloric liquid breakfast before exercise.
Practitioners should monitor for potential adverse effects such as nausea and dizziness when recommending liquid meals before exercise.
StrongQualifiesmedium confidence
All patients reported nausea following ingestion of LB and 50% of that group complained of post-exercise dizziness & fatigue.
Why this rating
Based on study design from abstract.
Source
THE EFFECTS OF PRE-FEEDING ON EXERCISE PERFORMANCE & METABOLISM IN PHASE III CARDIAC REHABILITATION (CR) PATIENTS 597
E W Derman et al. · Medicine & Science in Sports & Exercise · 1997
DOI 10.1097/00005768-199705001-00596
cross-sectional · n=8
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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