Healthy male adults should consumeu003ca href=u0022https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/u0022 target=u0022_blanku0022 rel=u0022noreferrer noopeneru0022u003e 400–420mgu003c/au003e of magnesium a day, whereas healthy adult females should consume 310–320mg of magnesium a day. For pregnant women over 18 years, the intake should be increased to 350–360mg a day.