Updated folate data in the Dutch Food Composition Database and implications for intake estimates

Figures & data

Table 1. Characteristics of NEVO database 2006 and 2010 for folate

	2006 (n=1489)			2010 (n=1604)
Food items (excluding foods for clinical use)	%	%	%	%	%	%
Folate values available for all foods	86			88
Dutch analytical folate values		16			20
Dutch analytical HPLC values			87			28
Dutch analytical MA values			13			72
Folate values from other sources		84			80
UK values converted to HPLC level (-27%)			51			0
Original UK values			0			49
Miscellaneous data sources^a			49			51
Missing folate values for all foods		14		12

^aForeign food composition tables, copied from similar foods, calculated by recipe, expert assumptions.

Table 2. Differences in analytical folate values between NEVO 2006 and NEVO 2010

		NEVO online 2010^a	NEVO table 2006^b,c	Difference (2006 is reference)
NEVO id	Food name	µg/100 g	µg/100 g	µg/100 g	%
204	Peanuts unsalted	57	17	40	235
63	Onions raw	24	10	14	140
64	Onions boiled	21	9	12	133
241	Bread white w milk	37	17	20	118
60	Tomatoes raw	16	8	8	100
171	Orange	33	18	15	83
244	Bread raisin	29	16	13	81
233	Bread currant	29	16	13	81
390	Beer pilsner	9	5	4	80
486	Flan with fruit filling	9	5	4	80
165	Mandarins	23	13	10	77
15	Cauliflower boiled	95	55	40	73
14	Cauliflower raw	67	44	23	52
52	Spinach boiled	125	83	42	51
243	Rye bread light	27	18	9	50
1056	Kiwi fruit	34	23	11	48
951	Beans French boiled	51	36	15	42
1014	Rice brown boiled	7	5	2	40
68	Chicory boiled	25	19	6	32
51	Spinach raw	131	100	31	31
242	Rye bread dark	30	23	7	30
27	Cucumber raw no peel	6	5	1	20
230	Roll white soft	45	39	6	15
410	Juice orange	22	20	2	10
55	Brussels sprouts boiled	95	87	8	9
8	Endive boiled	45	42	3	7
920	Broccoli boiled	69	65	4	6
383	Juice apple	0	0	0	0
236	Bread brown wheat	27	27	0	0
248	Bread white w water	22	25	−3	−12
240	Dutch spiced honey cake	7	8	−1	−13
884	Sweet pepper red raw	41	55	−14	−25
37	Leek boiled	41	58	−17	−29
7	Endive raw	35	50	−15	−30
46	Lettuce raw	28	43	−15	−35
151	Banana	9	16	−7	−44
67	Chicory raw	10	23	−13	−57
642	Pâté	62	147	−85	−58
1399	Lettuce iceberg raw	14	42	−28	−67
640	Liver sausage	60	207	−147	−71
658	Rice white boiled	5	21	−16	−76
31	Sweet pepper green raw	11	55	−44	−80
285	Coffee creamer half fat liquid	0	5	−5	−100

^aAnalysed in 2007–2008 by microbiological assay.

^bAnalysed by Konings 3 using HPLC.

^cAnalysed by Vahteristo 23 using HPLC.

Table 3. Distribution of habitual intake of folate and folate equivalents^a (µg/day) in Dutch children aged 2–6 years calculated with NEVO table 2006 and NEVO online 2010/2.0

		2006			2010
	n	P5	P50	P95	P5	P50	P95	% increase at P50	AI^b
2–3-year-old boys
Folate	327	71	103	149	76	115	172	12
Folate equivalents	327	75	106	152	80	118	166	11	85
2–3-year-old girls
Folate	313	70	97	130	76	108	146	11
Folate equivalents	313	68	102	150	76	111	157	9	85
4–6-year-old boys
Folate	327	74	111	162	85	128	185	15
Folate equivalents	327	77	117	173	89	134	195	15	150
4–6-year-old girls
Folate	312	64	99	147	74	114	164	15
Folate equivalents	312	66	106	161	77	120	178	13	150

^aFolate equivalents = folate+(1.7 * folic acid from food)+(2.0 * folic acid from supplements); supplements were not taken into account in these calculations.

^b AI: adequate intake.

Konings EJM, Roomans HHS, Dorant E, Goldbohm RA, Saris WHM, van den Brandt PA Folate intake of the Dutch population according to newly established liquid chromatography data for foods. 2001; 73: 765-76

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Vahteristo LT, Lehikoinen K, Ollilainen V, Varo P. Application of an HPLC assay for the determination of folate derivates in some vegetables, fruits and berries consumed in Finland. 1997; 59: 589-97

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