New Defender's Study Bible Notes
18:8 did eat. It is significant that not only Abraham, but also the three visitors–two of whom were angels, the other being Christ Himself in a theophany–all ate the meat prepared by Sarah and the servant. Whatever nutritional merits vegetarian diets might or might not have, they are not required by Biblical commandment. Note Genesis 9:3,4; I Timothy 4:3-4.