Could it be either of these studies? “Dietary Intervention to Reverse Carotid Atherosclerosis” (Circulation, 2010) — participants were randomized to low-fat, M

Could it be either of these studies? “Dietary Intervention to Reverse Carotid Atherosclerosis” (Circulation, 2010) — participants were randomized to low-fat, Mediterranean, or low-carbohydrate diets; carotid arteries were imaged with 3-D ultrasound cross-sections at baseline and follow-up. After 2 years there was a ~5% regression in carotid vessel-wall volume, with similar regression across all diets (i.e., including the low-carb arm). [1] Volek et al., 2009 (Metabolism) — 12-week very-low-carb vs low-fat trial; ultrasound of the brachial artery showed improved post-prandial flow-mediated dilation (a marker of endothelial function/inflammation) in the low-carb group. Not carotid 3-D slices, but still vascular imaging with before/after comparisons. [2] [1] https://www.ahajournals.org/doi/pdf/10.1161/CIRCULATIONAHA.109.879254 https://www.ahajournals.org/doi/pdf/10.1161/CIRCULATIONAHA.1... [2] https://lowcarbaction.org/wp-content/uploads/2019/12/Volek-et-al-Effects-of-Dietary-Carbohydrate-Restriction-Versus-Low-fat-Diet-on-Flow-mediated-Dilation.pdf https://lowcarbaction.org/wp-content/uploads/2019/12/Volek-e...