Table 1 Overview of studies of breast milk DHA before and after a 2007 review [10]
Reference | Site | Participants | DHA (% wt) |
|---|---|---|---|
Studies published before 2007 | |||
 Harris et al., 1984 [47] | Oregon, US | 8 | 0.10% |
 Carlson et al., 1986 [48] | US | 11 | 0.19% |
 Henderson et al., 1992 [29] | Connecticut, US | 5 | 0.37% |
 Francois et al., 1998 [49] | Oregon, US | 14 | 0.20% |
 Jensen et al., 2000 [1] | US | 24 | 0.24% |
 Auestad et al., 2001 [50] | US | 43 | 0.12% |
 Francois et al., 2003 [37] | Oregon, US | 7 | 0.20% |
 Bopp et al., 2005 [51] | North Carolina, US | 22 | 0.21% |
 Jensen et al., 2005 [6] | Texas, US | 77 | 0.20% |
 Yuhas et al., 2006 [52] | US | 49 | 0.17% |
 Average a |  | 260 | 0.19% |
Studies published after 2007 | |||
 Glew et al., 2008 [53] | New Mexico, US | 29 | 0.11% |
 Valentine et al., 2010 [54] | Ohio, US | 39 | 0.10% |
 Glew et al., 2011 [55] | New Mexico, US (American Indian) | 19 | 0.10% |
 Baack et al., 2012 [56] | Iowa, US | 31 | 0.07% |
Texas, US | 5 | 0.20% | |
North Carolina, US | 5 | 0.15% | |
California, US | 5 | 0.14% | |
 Keim et al., 2012 [57] | North Carolina, US | 287 | 0.20% |
 Valentine et al., 2013 [58] | Ohio, US | 13 | 0.18% |
 Sherry et al., 2015 [36] | US | 82 | 0.18% |
 Average a |  | 515 | 0.17% |