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Habits

AST/ALT Ratio Awareness

AST/ALT ratio awareness: both enzymes rise in liver stress but patterns differ—muscle damage and alcohol shift AST; NAFLD often elevates ALT more.

AST/ALT ratio awareness means knowing both enzymes rise in liver stress but patterns differ—AST above ALT can appear with alcohol, muscle injury, or advanced fibrosis contexts, while ALT-predominant bumps are common in NAFLD. Heavy eccentric lifting can spike AST from muscle.

Never self-diagnose from ratios; clinicians integrate history and imaging.

Common questions

  • Should athletes avoid training before liver labs?

    Hard lifting within a few days can raise AST from muscle; schedule draws after easy days or repeat if results surprise you and your clinician.

Related guide

Tracking Alcohol Moderation: Units, Dry Days, and Patterns That Stick →

Related terms

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