4785
There is some evidence that silicon is important to human health for their nail , hair , bone , and skin tissues , for example , in studies that demonstrate that premenopausal women with higher dietary silicon intake have higher bone density , and that silicon supplementation can increase bone volume and density in patients with osteoporosis .
 disease: osteoporosis
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 disease: osteoporosis