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Is Pre-Workout Bad for Your Heart? A Cardiologist Weighs In
Pre-workout supplements contain high levels of caffeine and other stimulants that can increase the risk of high blood pressure, arrhythmias, and heart attacks, especially in patients with coronary disease. A cardiologist recommends safer alternatives like B-complex vitamins, electrolyte drinks, and natural ingredients such as green tea and beets.
Built for AI agentsACO · 885 tokens
Summary
Pre-workout supplements contain high levels of caffeine and other stimulants that can increase the risk of high blood pressure, arrhythmias, and heart attacks, especially in patients with coronary disease. A cardiologist recommends safer alternatives like B-complex vitamins, electrolyte drinks, and natural ingredients such as green tea and beets.
Tags
pre-workout · caffeine · heart-health · cardiology · supplements · fitness
Key entities
Alejandro Pena Jr., MD (person, 0.95) · Baptist Heart Specialists (organization, 0.95) · Food and Drug Administration (FDA) (organization, 0.95) · dry-scooping (concept, 0.9) · caffeine (concept, 0.95) · ephedrine (concept, 0.9) · pre-workout supplements (technology, 0.95)
Classification
analysis · language en · status final
Provenance
claude-haiku-4-5 via @stacklist/mcp-server@2.0.0, confidence 0.85, 2 Nov 2026