I eat a baked potato every night and would like to prepare ahead of time. Can I bake 3 at a time and keep them in the refrigerator? Will they still have the same nutrition as baked daily?

They should be fine. The only things I would caution you on is, to know that where you prick them with a fork to release steam can turn black from oxidation and to get the baked potatoes cooled down quickly. I would try baking them till mostly done, say 185 degrees F so the skin doesn’t wrinkle quite as much when cooled down.

Potato nutrition wise they will be pretty much the same. I am told that heat can reduce some of the Vitamin C. 

More potato nutrition facts HERE!