Genesis 39:6

39:6 So Potiphar left everything he had in Joseph’s care; he gave no thought to anything except the food he ate.

Now Joseph was well built and good-looking.

Genesis 41:21

41:21 When they had eaten them, no one would have known that they had done so, for they were just as bad-looking as before. Then I woke up.

Genesis 41:27

41:27 The seven lean, bad-looking cows that came up after them represent seven years, as do the seven empty heads of grain burned with the east wind. They represent seven years of famine.