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Table 1 Pre and Post values following 6 weeks of treatment with 4 g/d of safflower oil, or 4 g/d of fish oil

From: Effects of supplemental fish oil on resting metabolic rate, body composition, and salivary cortisol in healthy adults

  Safflower Oil Fish Oil
  Pre Post Post-Pre Difference Pre Post Post-Pre Difference
Sex       
   Male (n) 8    6   
   Female (n) 14    16   
Age (y) 35 ± 14y (29;41)    33 ± 13y (27;39)   
Weight (kg) 71.1 ± 15.2 (64.7;77.5) 71.3 ± 15.3 (65.1;77.6) 0.2 ± 0.8 (-0.2;0.6) 71.3 ± 14.4 (65.1;77.6) 71.3 ± 13.7 (65.1;77.6) 0.0 ± 0.9 (-0.4;0.4)
Body Fat (%) 27.7 ± 10.6 (23.0;32.4) 28.0 ± 10.8 (23.2;32.8) 0.3 ± 1.5† (-0.4;1.0) 30.5 ± 7.7 (26.7;32.5) 30.1 ± 7.6 (26.3;33.9) -0.4 ± 1.3† (-1.2;0.2)
Fat Mass (kg) 19.7 ± 9.7 (15.4;24.0) 19.9 ± 9.9 (15.5;24.3) 0.2 ± 1.2* (-0.3;0.7) 22.3 ± 8.2 (18.3;25.7) 21.8 ± 7.6 (18.2;25.0) -0.5 ± 1.3* (-1.1;0.1)
Fat Free Mass (kg) 50.5 ± 11.9 (45.2;55.5) 50.4 ± 12.3 (45.0;55.8) -0.1 ± 1.2** (-0.6;0.4) 50.1 ± 11.7 (45.1;55.1) 50.6 ± 11.9 (45.5;55.6) 0.5 ± 0.5** (0.3;0.8)
Salivary Cortisol (μg/dL) 0.305 ± 0.240 (0.212;0.399) 0.321 ± 0.311 (0.217;0.425) 0.016 ± 0.272 (-0.108;0.140) 0.270 ± 0.179 (0.179;0.361) 0.206 ± 0.131 (0.104;0.308) -0.064 ± 0.142 (-0.127;-0.002)
RMR (24 h Kcal); n = 26 1290 ± 295 (1103;1477) 1228 ± 277 (1053;1400) -62 ± 184 (-179;55) 1335 ± 213 (1200;1470) 1352 ± 323 (1147;1557) 17 ± 260 (-148;152)
RER; n = 26 0.809 ± 0.052 (0.776;0.842) 0.832 ± 0.41 (0.806;0.858) 0.023 ± 0.54 (-0.011;0.057) 0.841 ± 0.59 (0.804;0878) 0.822 ± 0.48 (0.791;0.853) -0.019 ± 0.85 (-0.073;0.035)
  1. Data are expressed as means ± SD (95% confidence interval). Data were analyzed using a treatment X time repeated measures ANOVA
  2. * significant treatment X time interaction, p = 0.04
  3. ** significant treatment X time interaction, p = 0.03
  4. † treatment X time interaction, p = 0.08