MRI of Bone (IMAGE) University of North Carolina Health Care Caption Mouse femur MRI composites are shown. LFD-E refers to low-fat diet plus exercise. DIO-E refers to diet-induced obesity plus exercise. Red indicates less fat in marrow. Green, blue, purple show higher amounts of fat. Credit (Courtesy of Styner, et al) Usage Restrictions credit properly 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.