Add some rice cakes and air-popped popcorn for other healthy snack options. It may take a day or two after you return home to replenish your supply of healthy food. Always stock the kitchen before you leave with enough food for one or two healthy meals, even if you have to freeze them. This allows you to get back to healthy eating as soon as you arrive home. They can rob your bones of their minerals.
Coffee is believed to have a negative effect on the level of calcium in bones.
Eating large amounts of protein may cause the kidneys to excrete calcium before it can be put to good use in the bone.