By eating collagen rich food, which are usually sourced from meat, doing a ketogenics diet can add to the increase of production of these collagen inside the body.
Collagen And Keto: What is Collagen and Should You Use It on Keto?

By eating collagen rich food, which are usually sourced from meat, doing a ketogenics diet can add to the increase of production of these collagen inside the body.
The key in bone broth is finding the right stock of bones to be used, if you are going to do the manual process of boiling and extracting its nutrients.