voracious, veracious

Voracious or voracious means craving mass quantities of food--
He always returned form jogging with a voracious appetite.
He had a voracious appetite for barbecue, and would light the grill even in the rain.

Veracious or veracious means truthful, said of a person, or having the habit of telling the truth--
He seems veracious, but we'll have to check out his account of what happened.
This witness may be veracious, but the story is far-fetched.

Now that you know that, you can say--
"He was veracious when describing his voracious appetite, as we saw when we sat down to eat."

Note-- "veracity" means truthfulness--
The lie detector test confirmed the veracity of his statement.
"Voracity" means an insatiable appetite--
The voracity of his appetite was legendary at the all-you-can-eat restaurant.