I cannot stand DeLaurer, not a doctor, and not too keen on Berg either as a chiropractor pushing supplements.
Dr. Westman is not a fan of fasting more than 24 hours, though he's fine with Time Restricted Eating (1 or 2 meals a day). Dr. Ted Naiman also recommends at least one meal a day or you do not get enough protein...my two favorite Medical Doctors for Fasting info....though their advice boils down to you should eat some protein everyday.
The one Engineer I follow who is not an MD is Marty Kendall...he has done some very interesting work on Nutrient Optimization to manage hunger and a Data Driven method to determine the perfect Fasting and eating windows for you, based on your blood glucose readings.
Marty Kendall:
https://forum.lowcarber.org/showthread.php?t=484792
https://forum.lowcarber.org/showthread.php?t=473285
Marty's take on Fasting: "There is nothing wrong with going 24 or 36 hours without food so long as you are making good choices when you refeed to ensure you are getting the nutrients you need over the longer term and don’t have a history of binge eating. However, if you are not able to control food quality or quantity when you refeed, you are unlikely to be making sustainable long-term improvements. read more at
https://optimisingnutrition.com/ket...nger-is-better/
Dr. Ted Naiman: https://forum.lowcarber.org/showthread.php?t=483930
His PE Diet book is excellent (the $20 e-book version)
Or the weight loss version boils down to a few infographics:
https://www.lowenergydiet.com
Dr. Westman:
https://www.youtube.com/channel/UCn...YPwTdu7BYF3j0Eg
Hope you have time to Binge Watch! this year due to Covid he does at least two new videos a week. The new Conversations series is good, one topic 20-30 minutes. The Dr. Westman Lives can go well over an hour. one each Monday. And his new book:
End Your Carb Confusion: A Simple Guide to Customize Your Carb Intake for Optimal Health Paperback – December 15, 2020 by Dr. Eric Westman (Author), Amy Berger MS CNS (Author)
Quote:
Overwhelmed by the avalanche of information out there about diets and health? Tired of spending time and money following complicated and expensive plans and protocols that don’t deliver the results you want? Would a strict ketogenic diet be best for you? But what if you can’t imagine life without fruit or bread? Why won’t someone just make all this diet stuff simple? They have! Eric Westman, MD, has over twenty years of experience as an internal medicine doctor and obesity medicine specialist. He’s helped patients at his Keto Medicine Clinic at Duke University lose over 26,000 pounds and reverse conditions like type 2 diabetes, PCOS, high blood pressure, and more. In End Your Carb Confusion, he shares his time-tested and science-backed strategy with YOU! ...
https://www.amazon.com/End-Your-Car...e/dp/1628604298