Worst Nut for Your Diet

Hey, listen up, buttercup. This joke is playing on the words "nut" and "donuts." A "nut" can be a type of food, but "donuts" sounds just like "do-nuts" and donuts are bad for diets. It's like, what do you and a donut have in common? You both are sweet and easily consumed. Just kidding, you probably aren't sweet.