Is the rickets disease a pathogen, if so how

Rickets disease is a disorder in the bones (skeletal disorder) which may be caused by the lack of vitamin D, phosphate, or calcium. This can be evidenced through the weakness of the muscles, skeletal deformities, bone pain, etc. 

Since, this is caused by lack of vitamins, this is not a caused by the pathogens. 

I disagree

Explanation:

because the cell membrane controls everything that enters and leaves the cell