Sample size estimation and power analysis The investigators will recruit 90 participants with an expected drop-out rate of 20%. This should result in an analytic sample of 70. In this study the investigators will randomize 45 post-partum women to n-3 LCPUFA supplements and 45 to control therapies. The investigators estimate a 50% relapse rate in controls by 12-weeks. The investigators will be able to detect true hazard ratios (relative risks) of failure for control subjects relative to experimental subjects of 0.478 with probability (power) 0.80. The Type I error probability associated with this test of the null hypothesis that the experimental and control survival curves are equal is 0.05. The Fagerström Tolerance Questionnaire is on a 10-point Likert scale. Estimating a baseline score of 7.3 ± 1.6 the investigators have 80% power to detect a difference of 1 SD between the study arms