Daniel 1:13-15

Young's Literal Translation

¹³ and our appearance is seen before thee, and the appearance of the lads who are eating the king's portion of food, and as thou seest -- deal with thy servants.'

¹⁴ And he hearkeneth to them, to this word, and trieth them ten days:

¹⁵ and at the end of ten days their appearance hath appeared better and fatter in flesh then any of the lads who are eating the king's portion of food.