Answer:As explained in the Concerns and Cautions section of our Magnesium Supplements Review, the caffeine in coffee can cause a slight increase in magnesium excreted in the urine, but coffee provides more magnesium than is lost, so drinking coffee is not expected to cause magnesium depletion or deficiency.
Learn more about magnesium and our Top Pick among supplements in the Magnesium Supplements Review.
Join today to unlock all member benefits including full access to all CL Answers and over 1,300 reviews.Join Now
Already a member? Sign In Here.
Join now at www.consumerlab.com/join/