I must factor
in a 5% margin of error on biblical non-accuracy: I have noted huge calculation errors in both testaments.
1. Old Testament: In that count how many fighting men were found in Israel? (a) Eight hundred thousand (2 Samuel 24:9). (b) One million, one hundred thousand (1 Chronicles 21:5).
2. New Testament: the 3-day rule from Friday to Sunday: JC crucified on Friday but rose on Sunday.
That being said, their dietary habits may have consisted of a high content of: fruits, vegetables, grains and berries. You are what you eat.