What is the dosage for Magnical-D? Administrator April 04, 2018 23:12 Updated The recommended dosage for Magnical-D is 2 tablets, twice daily. Related articles Magnical-D What are the key ingredients in Magnical-D? Why do I have loose stools when I take Magnical-D? My calcium and magnesium supplement contains Vitamin K1, is this okay? Why not take a calcium and magnesium supplement that contains calcium carbonate and/or magnesium oxide? Comments 0 comments Please sign in to leave a comment.