Cooking with stock (for mineral) is good for your bones

Cooking with stock is a very traditional way of increasing the nutritional value of dishes made with added liquid, such as soups, stews, grains, beans, and sauces.

By cooking bones and vegetables for a long time over low heat, many of the minerals are leached out into the cooking water, making the stock highly nutritious and also alkalizing, especially if something sour has been added such as vinegar or wine.

http://www.healthdigezt.com/7-best-foods-for-stronger-bones/