[s1t5]

> You can achieve the same weight loss by just eating fewer total calories, without cutting carbs as well.

Achieve weight loss - yes, achieve the same weight loss - no. If you primarily want to lose fat rather than muscle, your insulin metabolism becomes an important variable.

[abtom]

This is a popular myth. There is simply no evidence to back to this claim. On the other hand there is a lot of evidence that preserving/increasing lean mass (non fat mass) depends only on protein and not fats/carbs. Check this article which summarizes multiple studies in this area - https://www.menshealth.com/health/a25924744/keto-diet-carbs-...