Open Question: if a true vegan doesn’t drink milk or milk products then are you afraid of disease?

Such as osteoporosis and arthritis, a number of different diseases? I heard that you have to eat a certain amount of calcium-rich food. There are also some inhibitory factor-rich foods, but you have to eat, but loads of time just to eat the same amount of 8 ounces of milk to see if the right side of page 14 to read http://www.webmd.com/osteoporosis/slideshow-superfoods-for- your-bones small information box