Table 1 Characteristics of the included studies
Study (year) | Design | Type of Patient | Location | Number | Gender | Age | Duration | Study arms | Dose (g/d) | Control |
|---|---|---|---|---|---|---|---|---|---|---|
Wang 2017 [24] | RCT | T2DM | China | 156 | M51 F105 | ≥60 | 3 m,6 m | Fish oil | 4 | Corn oil |
Gao 2017 [25] | RCT | T2DM | China | 67 | M30 F37 | M:40–70 F:menopause-70 | 3 m,6 m | Fish oil | 4 | Corn oil |
Jacobocejudo 2017 [14] | RCT | T2DM | Mexico | 65 | M15 F50 | 25–60 | 6 m | Fish oil | 2.8 | Cornstarch |
Mansoori 2015 [26] | RCT | T2DM | Iran | 68 |  | 30–70 | 2 m | Fish oil | 2.4 | Paraffin oil |
Zheng 2014 [27] | RCT | T2DM | China | 36 |  | M:40–80 F:menopause-80 | 6 m | Fish oil | 4 | Corn oil |
Crochemore 2012 [28] | RCT | T2DM | Brazil | 41 | F41 | 60.64 ± 7.82 | 1 m | Fish oil | 1.5/2.5 | Placebo |
Fakhrzadeh 2010 [29] | RCT | T2DM | Iran | 124 |  | 74.81 ± 9.44 | 6 m | Fish oil | 1 | Medium chain triglycerides oil |
Wong 2010 [30] | RCT | T2DM | China | 97 | M43 F54 | Control:59.0 ± 9.3 Fish oil:61.2 ± 9.0 | 3 m | Fish oil | 4 | Olive oil |
Kabir 2007 [31] | RCT | T2DM | France | 26 | F26 | 40–60 | 2 m | Fish oil | 3 | Paraffin oil |
Morgan 1995 [32] | RCT | T2DM | USA | 40 | M18 F22 | 53.9 ± 7 | 6w,12w | Fish oil | 9/18 | Corn oil |
Pelikanova 1993 [33] | RCT | T2DM | Czech | 20 | M20 | 40–60 | 3w | Fish oil | 15 ml | Saline solution |
Hendra 1990 [34] | RCT | T2DM | UK | 80 | M55 F25 | 55.9 ± 11.5 | 6 W | Fish oil | 10 | Olive oil |