Elisabeth Hasselback returns to Dr. Oz to sound the alarm on hidden food allergies! If you're typically feeling fat, bloated and tired, a hidden food allergy could be to blame. In this sneak peek Elisabeth reveals why she feels so passionately about this issue.

After years of trying to get pregnant, doctors told Kelsi Pierce it would be near impossible for her to conceive a child. However, Kelsi got the surprise of her life when her mom volunteered to be her surrogate — and she found out she, too, was pregnant!