The lowest temperature that nutritional supplements can be stored at to keep them fresh without ruining them?

Question

What would you say is the lowest temperature that multi vitamins, and dietary supplements can be stored at to keep them fresh, like if you keep them in the refrigerator , so as not to let them over heat at room temperature on a summer day? Is it ok to keep supplements and vitamins in the refrigerator?

Answer 1

There is no lowest temperature below which the supplements will have a chemical change that ruins them.  Keep them in the refrigerator and don't worry.