Does malnutrition and anorexia shrink or make bones smaller weaker inclunding the skull and ,can sleep deprived also have impact on bones?

Bones & nutrition: Malnutrition from any cause, including anorexia, can certainly lead to bone weakness. This effect is strongest in children and adolescents, but still is present in adults. It can lead to a loss of bone mineral density and breakdown of bone structure.

Bone loss.: Poor nutrition can certainly effect bone and can cause bone to degrade it's called osteopenia. If you are anorexic and not eating calcium rich foods the loss will happen faster. A lot of people restrict dairy when dieting. Sleep disturbances can disrupt your digestion and may cause malnutrition over long time periods, if not treated. A bone scan can be helpful to start with.

Malnutrition and/or: anorexia doesn't necessarily shrink the bones, but it can cause a loss of bone density, which weakens the bones and makes them susceptible to fractures. Sleep disorders like apnea may also increase the risk of osteoporosis.

Dr Rhoads and another doctor agreed