"In many cases the faintness that leads to a desire for food is felt because the digestive organs have been too severely taxed during the day. After disposing of one meal, the digestive organs need rest. At least five or six hours should intervene between the meals, and most persons who give the plan a trial will find that two meals a day are better than three. MH 304.1"
"Blessed art thou, O land, when thy king is the son of nobles, and thy princes eat in due season, for strength, and not for drunkenness!"
This verse speaks of eating for strength and not for excess, which aligns with the passage's emphasis on giving the digestive organs rest and avoiding overeating.