Of the 80 elements with at least one stable isotope, 26 have only one single stable isotope. The mean number of stable isotopes for the 80 stable elements is 3.1 stable isotopes per element. The largest number of stable isotopes that occur for a single element is 10 (for tin, element 50).
Diet for Osteopenia. A diet that is rich in calcium and vitamin D is important for those with osteopenia. Osteoporosis is a condition where the bones become frail and susceptible to fractures. Osteopenia is the beginning stages of bone loss and it is diagnosed before osteoporosis occurs. In some cases, lifestyle changes such as exercise, quitting smoking and eating a healthy diet are all the treatment that is needed for osteopenia, while others cases require medication.
Osteopenia is a term to define bone density that is not normal but also not as low as osteoporosis. By definition from the World Health Organization osteopenia is defined by bone densitometry as a T score -1 to -2.5. There are many causes for osteopenia including calcium and vitamin D deficiency and inactivity.