CALCIUM: AN ESSENTIAL NUTRIENT AND TOXIN

Current public health concerns with calcium deficiencies in the US:

90% adult women

88% teenage girls

73% adult men

68% teenage boys

(USDA Continuing Survey of Food Intake by Individuals, 1994-1996)

Dietary Reference Intakes

Life Stage Group

Calcium DRI (mg/day)

1-3 years

500

4-8 years

800

9-18 years

1,300

19-50 years

1,000

51+ years

1,200

pregnancy (<19 years)

1,000

pregnancy (19-50 years)

1,300

lactation (<19 years)

1,300

lactation (19-50 years)

1,000

(National Academy of Sciences, Food and Nutrition Board, 1997)

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