Table 3.

Usual intake of nutrients from foods and foods + dietary supplements among adults (19+ years old) by age groups. NHANES 2009–2012, gender combined data.

Nutrients	Age 19–50 Years (n = 5793)		Age 51–70 Years (n = 3330)		Age ≥71 Years (n = 1575)
	Food Only	Food + Supplement	Food Only	Food + Supplement	Food Only	Food + Supplement
Nutrients with EAR
Calcium (mg)	1065 ± 11	1157 ± 13 *	956 ± 20	1192 ± 26 *	848 ± 11	1135 ± 15 *
Copper (mg)	1.34 ± 0.02	1.60 ± 0.02 *	1.35 ± 0.02	1.68 ± 0.03 *	1.17 ± 0.02	1.60 ± 0.04 *
Iron (mg)	16.1 ± 0.1	18.7 ± 0.2 *	15.1 ± 0.2	18.2 ± 0.3 *	14.4 ± 0.3	18.6 ± 0.4 *
Magnesium (mg)	319 ± 3	337 ± 3 *	312 ± 4	351 ± 6 *	267 ± 3	311 ± 5 *
Phosphorus (mg)	1501 ± 12	1506 ± 11	1358 ± 18	1369 ± 19	1169 ± 14	1184 ± 13
Selenium (µg)	121 ± 1	133 ± 2 *	110 ± 2	137 ± 7 *	91.9 ± 1.4	118 ± 2 *
Zinc (mg)	12.3 ± 0.1	15.2 ± 0.2 *	11.3 ± 0.2	16.1 ± 0.4 *	10.3 ± 0.2	17.8 ± 0.5 *
Vitamin A (µg RE)	622 ± 12	853 ± 13 *	700 ± 29	1099 ± 46 *	666 ± 18	1254 ± 47 *
Thiamin (mg)	1.73 ± 0.02	4.19 ± 0.18 *	1.59 ± 0.02	7.06 ± 0.85 *	1.46 ± 0.02	7.50 ± 2.40
Riboflavin (mg)	2.20 ± 0.02	4.13 ± 0.13 *	2.18 ± 0.05	5.88 ± 0.79 *	1.97 ± 0.03	4.80 ± 0.57 *
Niacin (mg)	28.0 ± 0.3	34.5 ± 0.7 *	24.5 ± 0.3	38.6 ± 1.8 *	21.2 ± 0.3	33.0 ± 1.2 *
Folate (µg DFE)	582 ± 6	740 ± 7 *	543 ± 8	798 ± 15 *	503 ± 10	820 ± 15 *
Vitamin B6 (mg)	2.26 ± 0.03	4.70 ± 0.13 *	2.03 ± 0.03	6.38 ± 0.48 *	1.87 ± 0.03	6.44 ± 0.55 *
Vitamin B12 (µg)	5.51 ± 0.10	32.4 ± 2.9 *	5.18 ± 0.15	69.8 ± 7.4 *	4.91 ± 0.14	101 ± 10 *
Vitamin C (mg)	84.6 ± 2.0	141 ± 5 *	89.5 ± 2.0	192 ± 11 *	82.5 ± 2.4	214 ± 14 *
Vitamin D (µg)	4.83 ± 0.11	10.6 ± 0.7 *	4.83 ± 0.12	18.1 ± 1.2	5.06 ± 0.17	20.7 ± 1.4 *
Vitamin E (mg)	8.69 ± 0.11	19.4 ± 0.9 *	8.59 ± 0.13	32.8 ± 2.2 *	7.35 ± 0.16	41.2 ± 3.1 *
Nutrients with AI
Vitamin K (µg)	99.6 ± 2.4	105 ± 2	124 ± 4	132 ± 4	99.5 ± 3.3	110 ± 3
Choline (mg)	348 ± 3	349 ± 3	337 ± 5	340 ± 5	287 ± 5	289 ± 5

* Significantly different from Food Only at p < 0.01.