light moisture and excessive heat can reduce the potency of vitamins and mineral supplements. so the best place to store supplements is in a cool dry location -- in a kitchen pantry or a bedside table for instance. don't refrigerate vitamin and mineral supplements. taking them from refrigeration to room temperature can cause condensation inside the bottle. certain non-vitamin supplements should be refrigerated however. labels usually indicate when a supplement should be kept in the refrigerator. in the case of all supplements it's always a good idea to check the expiration date.
what's the best way to store vitamins and minerals?