Dietary Intake

"The RDAs for magnesium for adults between ages nineteen and thirty are 400 milligrams per day for males and 310 milligrams per day for females. For adults above age thirty, the RDA increases slightly to 420 milligrams per day for males and 320 milligrams for females. Dietary Reference Intakes for Magnesium: Age Group — RDA (mg/day) — UL from non-food sources (mg/day): Infants (0–6 months) — 30* —; Infants (6–12 months) — 75* —; Children (1–3 years) — 80 — 65; Children (4–8 years) — 130 — 110; Children (9–13 years) — 240 — 350; Adolescents (14–18 years) — 410 — 350; Adults (19–30 years) — 400 — 350; Adults (> 30 years) — 420 — 350. * denotes Adequate Intake. Source: Dietary Supplement Fact Sheet: Magnesium. National Institutes of Health, Office of Dietary Supplements. http://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/. Updated July 13, 2009. Accessed November 12,"