A new study from Sweden examined the association of calcium and magnesium intake with mortality among 23,366 Swedish men, aged 45-79 years, who did not use dietary supplements. Those with the highest dietary calcium intake (average 1,953 mg per day) — almost double the recommended levels — had a statistically significant lower rate (25%) of all-cause mortality as compared with the lowest average intake (990 mg per day).
Magnesium intake, ranging from 387 mg to 523 mg per day, did not appear to be associated with mortality rates.
The authors conclude, "This population-based, prospective study of men with relatively high intakes of
dietary calcium and magnesium showed that intake of calcium above that recommended daily may reduce all-cause mortality."