A system for informing product decisions. The system includes a computing device configured to locate an article of interest for a user. The computing device is configured to receive a user biological extraction. The computing device is configured to generate using ingredient training data and a classification algorithm an ingredient metabolic classifier. The ingredient metabolic classifier inputs a user biological extraction and outputs an ingredient metabolic profile. The computing device identifies at least an ingredient contained within an article of interest. The computing device determines the tolerability of an article of interest as a function of a metabolic profile and at least an ingredient contained within an article of interest.