Terrific new Hava interview with Dr Sean O'Mara. Not everything I would recommend but interesting about his having added Fermented Foods to his first low carb diet in 2009. Better to watch YouTube than listen to the podcast because he shows fascinating MRI views of visceral fat and results from LC diet. MRIs are still expensive around here, I agree with Dr Eenfeldt and Naiman that a free Waist to Height ratio works well. Most bioimpedance scales (about $20) show visceral fat based off study results with same gender, age, weight etc.

The Invisible Enemy: Visceral Fat and How Defeat It!
https://youtu.be/Umuh2aF0SqQ?feature=shared