EVERYTHING you eat takes 24+ hours to fully digest from mouth to colon. That's what allows us to absorb nutrients and not starve to death overnight.
If meat DOES take longer to work through the small intestine, that's only because it is full of protein and fat, which are slow, steady sources of energy that can't be converted into sugar or broken down by insulin. Carbs, on the other hand, are digested quickly and converted into sugars and broken down by insulin (which is why too many carbs make you fat). So, yes, technically, a piece of meat will be in your small intestine for longer... but that is a good thing! It is certainly NOT just "sitting there" or rotting.
Human beings are omnivores. Eating meat comes to us more naturally than eating grains or drinking milk (think about it -- we lived as hunter gatherers for 3 million years. We've lived off of farmed grains for 10,000). So don't worry about it.
Edited by: BTVMADS at: 5/29/2011 (12:11)
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