I would like to confirm a principle about ketosis.
Dr Atkins found out that back in 1960 that Kekwick, Gaston and Pawan did experiments on low carbohydrate diets and found ketosis has brought about mainly loss of body fat.
As they also found that on a 1000 calorie low fat diet (eg 100C 40P and 27F) that loss of weight occurred. As would any combination of carbs, protein and fat with only 1000 calories.
Here is my problem. On a 1000 calorie and 100 grams of carbs intake, a deficit of energy will result and cause the body to deplete the glycogen stores and then do what? There are so much carbs consumed that the considerable insulin in the body will prevent entering the liposysis process and ketosis. Since the lipolysis process cannot start, body fat cannot be used for the extra energy required. I believe, that the body will start to use muscle tissue to supply the energy deficit.
Therefore, there cannot be any fat loss without being in ketosis (produced by the lipolysis process). Conversely, there must be fat loss while in ketosis?
Am I correct in these assumptions?
If this is correct, this has been known since 1960, what made the nutrition and medical industry recommended the low fat (high carb) diets for all these years?