Supplement & Biomarker Interference Washout Planner
What you swallow in the days preceding a blood draw heavily alters the diagnostic outputs of clinical laboratory equipment. High-dose **Biotin** (found in hair/skin/nail supplements) ruins immunoassays, mimicking severe hyperthyroidism; **Creatine** raises creatinine levels, triggering chronic kidney disease alarms; and intense **weight training** causes artificial spikes in AST/ALT liver enzymes.
Enter your expected blood draw date below to calculate a optimized supplement suspension timeline.
Supplement Washout Calendar
Select your draw date and supplements. Calculations are performed strictly locally in your browser.