Suggestion: We must pay attention to the calcium deficiency symptoms of 1 1 year-old children. You mentioned the problem of calcium deficiency in 1 1 year-old children, and I will answer it for you as follows.

If you lack calcium, your legs will cramp. If you lack calcium, your legs will hurt when you cramp. People with calcium deficiency are emotionally unstable and impulsive. If they are children, they just cry and are dishonest.