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Table 1 Twenty-two free fatty acids with relative concentrations above 0.1% in 297 subjects

From: FADS1-FADS2 genetic polymorphisms are associated with fatty acid metabolism through changes in DNA methylation and gene expression

Characteristics % of total fatty acids
14:0 3.89 ± 1.48
15:0 0.32 ± 0.07
16:0 22.95 ± 2.07
17:0 0.84 ± 0.19
18:0 22.41 ± 4.63
19:0 0.14 ± 0.03
20:0 0.51 ± 0.16
15:0 iso 0.26 ± 0.26
16:0 iso 0.17 ± 0.05
17:0 iso 0.65 ± 0.16
18:0 iso 1.61 ± 0.48
16:1n-7 1.01 ± 0.41
16:1n-9 0.17 ± 0.05
18:1n-9 13.59 ± 3.84
20:1n-9 0.14 ± 0.05
18:2n-6(LA) 20.04 ± 4.76
18:3n-6(GLA) 0.26 ± 0.07
20:2n-6(EDA) 0.32 ± 0.06
20:3n-6(DGLA) 0.36 ± 0.1
20:4n-6(AA) 2.94 ± 0.88
22:4n-6(ADA) 0.33 ± 0.07
22:5n-6 0.19 ± 0.05
18:3n-3(ALA) 0.70 ± 0.27
20:5n-3(EPA) 0.46 ± 0.19
22:5n-3(DPA) 0.58 ± 0.18
22:6n-3(DHA) 4.47 ± 2.00
  1. Data are shown as the mean ± SD. AA arachidonic acid, ADA adrenic acid, ALA α-linolenic acid, DGLA dihomo-gamma-linolenic acid, DHA docosahexaenoic acid, DPA docosapentaenoic acid, EDA eicosadienoic acid, EPA eicosapentaenoic acid, GLA gamma-linolenic acid, Iso isomer, LA linoleic acid