Possible Clues:

• You had a late dinner we hear, to get thin
• Late in the evening we hear you dined, wanting to get thin
• How you had a meal late enough to make you weak
• To have eaten a couple of hours before midinght might make you even thinner
• Lunched early or supped late - that's enough to make you thin
• You had your meal late in the evening so as to be slimming
• When, perhaps, you had a meal at ten, it could only make you weaker
• When you ate at 22,00 hrs, it could make you thin
• Sounds as if it was too late to have had 28 across enough to weaken you
• What you were given to eat at 10 o'clock was only enough to make you thin