This figure depicts concentration (g/dl), percentages of total (%), and daily production (g/day) of milk FAs from 6 h to 42 days post partum in 7 normal lactating human volunteers. FAs are classified and labeled as de novo synthesized (C4-C15, DN_FAs), total saturated (SAT_FAs), monounsaturated (MU_FAs), polyunsaturated (PU_FAs), omega 6 (ω6_FAs), omega 3 (ω3_FAs), and very long chain with ≥20 carbons of FAs (VLC_FAs). Values represent means ± SE; n = 7. P values (repeated measures and Bonferroni correction for post hoc) for overall effect of time on sum of each FA groups <0.01.