Does Calories-In and Calories-Out work on Keto? In the last 162 days I have averaged 2391 calories a day. My weight is the same at the end of these 162 days. My total energy expenditure (TDEE) is calculated at 2232 calories a day. This is only 159 calories a day from my TDEE or 7% off the calculated amount and that’s less than half the assumed measurement error in the food (typically assumed to be 15%).
So, yes, I conclude that Calories-In and Calories-Out do fairly closely match. At least in my particular case and macros.
So Why Keto?
Where Keto comes in is that I have maintained a 120 lb loss for the past 5+ months without hunger. My hormones are in balance. My insulin level is kept low. I don’t have the blood sugar roller coaster ride.
Here’s a good podcast covering this subject (Sigma Nutrition Radio #85: What Drives Fat Gain? – Thoughts on CICO, Insulin & Obesity).