Table 1.

The information on selected vitamins’ daily supplementation in patients with CKD on HD [8].

Vitamins	HD Losses	European Guidelines for HD Patients	Risk of Toxicity
D	No	No	Yes
B1	13–40 mL/min	1.1–1.2 mg	No
B2	27–52 mL/min	1.1–1.3 mg	No
B3	Very low	14–16 mg	No data
B6	54–173 mL/min	10 mg	Yes
B9	135 mL/min	1 mg	Yes
B12	Controversial	2.4 lg	No data
C	80–280 mg/session	75–90 mg	Yes
A	No	No	Yes
E	No	400–800 IU	Possible
K	No data	No	No