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roland comments on Ketogenic Soylent - Less Wrong Discussion
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Needs more Carbs and Protein. Prediction: this diet is not sustainable and will lead to loss of muscle.
Carbs:
Even when in Ketosis the brain will still needs around 50-75 g of Carbs daily. Either you provide the carbs or you eat more protein than can be converted to carbs(glucose) by the body(gluconeogenesis).
Protein: you need a certain amount of protein to maintain your muscle mass(I think it was 1.5g per kg of muscle but please check) so you need to add this much protein at least. Also consider that part of the protein you consume is converted to glucose automatically, see the book below for details.
Bottom line: to make sure the diet is sustainable I would add a safety margin over the basic carb and protein needs of the body.
http://www.amazon.com/The-Ketogenic-Diet-Complete-Practitioner/dp/0967145600
1.5g/kg is ludicrously high. No benefit has been shown beyond around .5g/kg. http://mennohenselmans.com/the-myth-of-1glb-optimal-protein-intake-for-bodybuilders/
Not really. I linked this blog post elsewhere in the thread which reviewed a study that indicated that 1.6g/kg was the optimal protein amount for fat loss. Even higher protein resulted in more weight loss, but less fat loss proportionally.
The blog post you linked is very good, but it doesn't support your claim. In fact, the article pretty clearly supports 1.6-1.8g/kg. The lowest recommendation I can infer is the ~0.9g/kg, which is the level at which muscle protein synthesis is maximized in sedentary individuals, though that's an entirely irrelevant metric to make a recommendation from.
My math was totally off on the original post. 1.8g/kg is a pretty reasonable intake. My bad.