Our bodies require certain amounts of vitamins and minerals daily to operate smoothly. If you're confused about how many to get of each and why exactly we need them, you're not alone. Take this quiz to help get all those "recommended daily intake" amounts straight.
Do You Know Your RDI?
Calcium is needed for strong bones and teeth, and helps prevent osteoporosis. Our bodies don't produce it, so how much do we need from the food we eat?