Diet Wars

[mickj]

New study just published by Jeff Volek, well-known keto researcher. Interesting because it failed to confirm the hypothesis that boosting ketones helps preserve muscle mass in a weight loss setting. (Also, no sig diff in fat loss or body comp vs low-fat diet.)

... short-term changes in body composition during caloric restriction are driven by caloric restriction more so than level of ketosis or macronutrient distribution.

https://www.frontiersin.org/articles/10.3389/fnut.2021.618520/full

From the link… i don’t think you represented it correctly in your comment

Conclusion: Energy-matched hypocaloric ketogenic diets favorably affected body composition but were not further impacted by administration of an exogenous BHB-salt that augmented ketosis. The trend for less nitrogen loss with the BHB-salt, if manifested over a longer period of time, may contribute to preserved lean mass.

 

[twaddle]

Well, you can see the data and make your own call. Figure 2 makes it fairly clear.

And the italics in my post above comes straight from the paper.

Another quote from the paper:

We hypothesized that augmentation of ketosis by twice daily ingestion of a KS might enhance preservation of lean mass in response to a hypocaloric KD that produced clinically meaningful weight loss, but results from our 6-week intervention suggest that was not the case.