Lard/Fish Oil & the Gut (IMAGE) Cell Press Caption Caesar et al. reveal how saturated lipids in lard affect gut microbial composition to promote obesity and WAT inflammation via TLR signaling and CCL2; in contrast, mice fed a fish-oil diet enriched in polyunsaturated fatty acids are protected. Transfer of microbiota from fish-oil-fed mice dampens lard-induced inflammation. Credit Caesar et al./<em>Cell Metabolism</em> 2015 Usage Restrictions Credit Required. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.