Not what people have said, more a line of dialogue in an advert between a squirrel and a hedgehog (which says it all).
"All because they (people) aren't eating the fibre that nature intended them to!"
...it's an advert for bran flakes.
Meat is Prized, Wheat is Despised.
Real Food - The REAL staff of life
But then he pats his tummy affectionately and says, "This here is a sign of good living."