Final answer:
Rickets is a disorder characterized by soft and weak bones in children, caused by a deficiency in vitamin D, leading to poor absorption of calcium and phosphate.
Step-by-step explanation:
Children with inadequate vitamin D in their diet may develop soft bones known as rickets. Rickets is a disorder in children caused by a deficiency in vitamin D, which is crucial for the proper mineralization of bones. This condition is characterized by weak, soft bones and potential skeletal deformities.
A lack of vitamin D leads to diminished absorption of calcium and phosphate in the intestines, resulting in improper bone development and the manifestation of rickets symptoms such as bowed legs and increased risk of fractures.