Table 3.

Folic acid (FA) content determined and declared in the tested dietary supplements.

Product No.	Determined FA Content	Declared FA Content (DV 1)	Difference with the Declared FA Content
	One-ingredient supplements (µg per tablet, capsule)		[%]
1	296.52 ± 8.4	400	25.9
2	374.6 ± 9.3	400	6.4
3	374.5 ± 10.8	400	6.4
4	290.4 ± 22.7	400	27.4
5	292.5 ± 20.5	400	26.9
6	361.1 ± 2.9	400	9.7
7	320.2 ± 26.6	400	20.0
8	304.0 ± 14.7	400	24.0
	Multi-ingredients supplements (µg per tablet, capsule)		[%]
9	3.8 ± 0.3	400	99.1
10	339.2 ± 13.5	400	15.2
11	327.2 ± 20.4	400	18.2
12	3.6 ± 0.2	400	99.1
13	193.9 ± 9.1	600	67.7
14	314.7 ± 28.1	400	21.3
15	371.6 ± 48.4	600	38.1
16	209.9 ± 8.57	400	47.5
17	258.2 ± 1.79	400	35.5
18	250.4 ± 6.8	300	16.5
19	195.2 ± 8.94	200	2.4
20	167.3 ± 2.56	200	16.4
	Multi-ingredients liquid supplements (µg per portion mL)		[%]
21	204.1 ± 7.7	200	+2.0
22	10.7 ± 0.7	30	64.4
23	87.8 ± 3.4	180	51.2
24	173.4 ± 4.1	200	13.3
25	80.6 ± 3.1	100	19.4
26	65.1 ± 0.9	147	55.7
27	1.2 ± 0.1	50	97.5
28	184.1 ± 17.9	200	8.0
29	1.2 ± 0.1	169	99.3
30	57.9 ± 1.0	290	80.0

¹ DV: Folic acid content declared by manufacturers or declared value. Results are presented as the mean of three replicates ± standard deviation.