1.   Giardia is acquired by ingesting food containing the cysts or, more commonly, drinking contaminated water.

2.   Before specialists took up the challenge, patients unable to ingest food were usually kept alive with a glucose solution.

3.   Mad cow disease is even more frightening, causing a uniformly fatal brain disease that can kill years after victims ingest contaminated food.

4.   Only in the past few days has he been able to ingest solid foods.

5.   Richard Jenkins is a howl, too, as the melancholy fed who knows he has hit rock bottom after ingesting drugged food.

6.   Why do reptiles and fish, which also ingest food, have such low body temperatures?