Will your supplements and meds interact?
Check any combination of supplements and medications for dangerous interactions and safety risks — instant AI analysis, free.
Free · No account needed · Results in ~20 seconds
Lightning Fast
Get comprehensive analysis in seconds, not minutes
Advanced Medical AI
Sophisticated AI trained on extensive medical literature
Live Medical Research
Current medical data from trusted sources and latest guidelines
400+
supplements & medications recognized
20–30s
per comprehensive analysis
9 genes
analyzed in the DNA Report
NIH · Mayo
and other trusted medical sources
How It Works
Get comprehensive supplement analysis in seconds
Type in your supplements or the ones you're considering
Our advanced analysis engine reviews current medical data and safety profiles
Receive safety scores, interactions, and personalized recommendations
Why Choose CanIStackThis?
Analysis based on peer-reviewed medical literature and clinical studies
Get comprehensive analysis in 20-30 seconds with our optimized AI
Simple interface - just type your supplements and get instant results
Tailored recommendations based on your specific supplement combination
Current medical data from trusted sources and latest guidelines
Clear safety scores and warnings to help you make informed decisions
Free tools — no premium needed
On a GLP-1 like Ozempic or Mounjaro? Build a supplement routine alongside it — with the interactions checked.
Premium Features
Unlock advanced AI capabilities with our premium features
Unlimited Stacks
Save unlimited supplement combinations — all re-scored monthly with email alerts
Timing Schedules
Get personalized timing recommendations for optimal absorption
Safety Intelligence
Advanced medical analysis with detailed safety assessments
Food & Absorption
Meals sequenced so your supplements absorb — built around your exact stack
DNA Analysis
Supplement recommendations matched to your genes — MTHFR, COMT, CYP1A2
Unlimited Scans
Snap photos of your shelf as often as you like — your supplement list fills itself in
DNA-Powered Supplement Analysis
Upload your 23andMe or AncestryDNA results for personalized supplement recommendations based on your unique genetic profile
Upload Your DNA File
Supports 23andMe, AncestryDNA, and other major DNA testing platforms. Your raw file is processed in memory and never stored.
Genetic Analysis
AI analyzes your genetic variants for supplement metabolism and needs — 9 nutrition-critical genes including MTHFR, COMT, CYP1A2, and APOE
Personalized Recommendations
Get supplement suggestions tailored to your unique genetic profile — and keep your report forever
DNA analysis is included with Premium ($9.99/mo or $59/yr). The keep-forever report is $29 one-time — or free with Annual — with a 14-day money-back guarantee.
Ready to Optimize Your Supplement Stack?
Join a growing community that trusts CanIStackThis for safer supplement combinations
Check My Supplements — FreeCanIStackThis provides informational insights only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a healthcare professional before making supplement decisions.