Supplement guides for Canada
The same label data and evidence as the US site, re-priced for readers in Canada: every product below is sold on Amazon.ca, priced in CAD, with cost per day worked out from the Canadian price and pack size. 96 products across 25 categories; 26 carry a Health Canada natural product number (NPN) on their listing and 10 carry an independent third-party certification (NSF, USP, Informed Sport or ConsumerLab).
How Canada differs. Health Canada licenses natural health products (the NPN on the label).
A licence is not the same thing as third-party testing, so these pages keep the two apart: the tested tier
only lists products whose certification is named by an independent program. Where Amazon.ca carries a different
product, the Canadian page uses a Canadian-market equivalent of the same form and dose and says so.
Best overall — ranked by dose, licensing and cost per day
Dosage guides
Comparisons
Looking for the US edition? Start here. Prices on this edition were last checked on November 6, 2026. The check runs every day.