TABLE 3.

Comparison of nutrient intakes and nutrient adequacy for infants 6–11.9 mo from the Feeding Infants and Toddlers Studies 2002, 2008, and 2016¹

		Mean intakes ± SE			Nutrient adequacy ratio
		2002	2008	2016	2002	2008	2016
Nutrient	RDA2/AI	n = 1464	n = 509	n = 902	n = 1464	n = 509	n = 902
Vitamin A (μg RAE/d)	500	761 ± 11	668 ± 22	793 ± 17	0.96	0.93	0.95
Thiamin (mg/d)	0.3	0.8 ± 0.0a	0.7 ± 0.0a,b	0.7 ± 0.0b	0.97	0.95	0.93
Riboflavin (mg/d)	0.4	1.2 ± 0.0a	1.0 ± 0.0b	1.0 ± 0.0b	0.99	0.98	0.97
Niacin (mg/d)	4	9.9 ± 0.2a	9.4 ± 0.4a,b	8.9 ± 0.3b	0.96	0.95	0.92
Vitamin B-6 (mg/d)	0.3	0.7 ± 0.0	0.7 ± 0.0	0.7 ± 0.0	0.96	0.95	0.94
Folate μg (DFE/d)	80	182 ± 7.4	220 ± 10.2	211 ± 9.2	0.96	0.96	0.95
Vitamin B-12 (mg/d)	0.5	1.8 ± 0.0	2.2 ± 0.1	2.1 ± 0.1	0.96	0.98	0.96
Vitamin C (mg/d)	50	100 ± 1.5a	86.0 ± 3.4b	85 ± 2.4b	0.98	0.95	0.94
Vitamin D (μg/d)	10	7.6 ± 0.1a	6.1 ± 0.3b	6.7 ± 0.2b	0.67	0.58	0.59
Vitamin E (mg/d)	5	9.6 ± 0.2a	5.6 ± 0.2b	5.9 ± 0.2b	0.98	0.79	0.77
Vitamin K (μg/d)	2.5	53.1 ± 1.4	54.6 ± 5.4	50.0 ± 1.7	1.00	0.99	1.00
Calcium (mg/d)	260	606 ± 8.2a	608 ± 19.2a,b	629 ± 15.7b	0.99	0.98	0.98
Iron (mg/d)	112	15.6 ± 0.3a	15.1 ± 0.6a,b	13.4 ± 0.4b	0.88	0.84	0.77
Magnesium (mg/d)	75	106 ± 1.5a	100 ± 3.8a,b	102 ± 2.3b	0.93	0.90	0.89
Phosphorus (mg/d)	275	482 ± 7.5a	448 ± 18.9a,b	421 ± 11.2b	0.95	0.92	0.90
Potassium (mg/d)	700	1174 ± 14.9	1086 ± 34.1	1139 ± 22.8	0.97	0.95	0.95
Zinc (mg/d)	32	5.4 ± 0.1	6.2 ± 0.3	6.0 ± 0.2	0.94	0.94	0.92
Mean adequacy ratio					0.94	0.91	0.90

¹Statistical tests were computed through use of regression models with each nutrient as a dependent variable and year as the independent variable, stratified by age. Mean intakes with different superscripts (^a,^b) represent an overall difference at P ≤ 0.0001 and a year-to-year difference of P ≤ 0.005 within each age grouping. AI, Adequate Intake; DFE, dietary folate equivalent; RAE, retinol activity equivalent.

²Values with a superscript are RDA values; AI values do not have a superscript.