. 2022 Jul 19;76(12):1733–1739. doi: 10.1038/s41430-022-01178-3

Table 2.

Vitamin C and folate dietary intake, supplementation and circulating levels in HFI patients (dietary intake data not available in two subjects).

		Vitamin C					Folic acid/folate
		Dietary intake	Supplementation (mg/day)			Conc. (µmol/L)	Dietary intake	Supplementation (µg/day)			Conc. (nmol/L)
Patient No.	Mult. name	mg/day	Single	Mult.	Total	Plasma	µg/day	Single	Mult.	Total	Serum
1	Supradyn^® EE	50.9	250	90	340	82.9	266	0	100	100	35.1
2		46.6	0	0	0	34.1	145	0	0	0	6.1
3		40.0	0	0	0	58.5	201	0	0	0	12.0
4		29.9	0	0	0	44.9	168	0	0	0	8.4
5		23.8	0	0	0	6.2	113	5000	0	5000	38.1
6		20.6	200	0	200	38.0	130	2100	0	2100	11.3
7		12.1	250	0	250	94.8	189	5000	0	5000	54.4
8		21.7	250	0	250	73.8	184	0	0	0	13.4
9	ViMin 50 NM	64.1	0	30	30	42.6	208	0	100	100	16.5
10	ViMin 50 NM	41.5	0	30	30	19.3	122	0	100	100	8.6
11		35.4	0	0	0	5.7	257	0	0	0	11.1
12		11.5	20	0	20	76.7	206	0	0	0	42.1
13		13.3	500	0	500	39.7	141	2500	0	2500	47.1
14		12.1	0	0	0	76.7	79	0	0	0	15.2
15	Supradyn^® AW	15.5	0	80	80	6.8	144	5000	200	5200	32.0
16	Supradyn^® Active	13.4	0	80	80	7.4	158	5000	200	5200	54.4
17		17.5	0	0	0	31.8	216	0	0	0	17.7
18		19.3	0	0	0	26.7	197	0	0	0	15.9
19			40	0	40	82.9		0	0	0	24.5
20	Supradyn^® Active	39.2	0	80	80	103.3	153	0	200	200	12.9
21	Supradyn^® Prot.	15.6	46	20	66	95.4	132	700	0	700	45.8
22	ViMin 50 NM		0	30	30	23.1		0	100	100	31.5
23	Nu U nutrition	16.4	1000	100	1100	138.0	129	0	200	200	38.5
24	Supradyn^® Prot.	76.1	225	29	254	60.2	229	300	0	300	29.5
25		28.3	50	0	50	67.0	172	300	0	300	38.5
26		23.8	200	0	200	39.2	208	0	0	0	18.6
27		22.5	200	0	200	76.1	183	0	0	0	17.4
28		42.0	0	0	0	6.8	304	0	0	0	24.9
29		6.4	1000	0	1000	53.9	132	0	0	0	31.3
30		76.1	50	0	50	21.6	281	0	0	0	25.8
31		66.6	0	0	0	57.3	304	0	0	0	10.7
32	Supradyn^® Prot.	43.4	0	20	20	57.9	195	200	0	200	54.4

“Total” column refers to the sum of single vitamin and multivitamin supplementation. Dietary intake below population reference intake (PRI) [16, 22] and vitamin levels indicating deficiency [16–18] are marked in bold. Mult. Multivitamin, EE Extra Energy, AW Active Woman, Prot. Protovit.