Table 4

Biological measurements in blood and urine in all participants and according to seafood and n-3 supplement intake, given as mean ± SD or median.

Seafood intake and n-3 supplement intake

All

Q1

Q2

Q3

Q4

(n = 53)

(n = 12)

(n = 17)

(n = 12)

(n = 12)

Sum marine n-3, μg/g RBC

232 ± 65

172 ± 31^a

206 ± 36^a

260 ± 54^b

298 ± 56^b

EPA

43 ± 21

7 ± 13^a

21 ± 16^a

47 ± 13^b

55 ± 26^b

DPA

56 ± 10

48 ± 7^a

54 ± 8^ab

58 ± 9^b

62 ± 11^b

DHA

145 ± 35

117 ± 29^a

132 ± 21^ab

155 ± 32^b

181 ± 27^b

25(OH)D, nmol/L

73 ± 33

60 ± 35^a

73 ± 35^ab

82 ± 33^b

83 ± 34^b

Selenium, (μg/L)

74 ± 25

72 ± 16^a

61 ± 16^ab

84 ± 28^ac

81 ± 32^ac

Iodine, (μg/L)

102

59^a

161^b

78^ac

182^bc

Different letters denote significant difference between quartile groups in the same row.

Dahl et al. Nutrition Journal 2011 10:127   doi:10.1186/1475-2891-10-127