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Often some additives may get absorbed by your gut.

A smoothie vs a peach may well have different glycemic indices. Few people chew their few up to the extent that a bender will break it down. Also, how many peaches go into a smoothie, and how much extra sugar via, say, yogurt, or smoothie mix?

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We're not talking about a peach smoothie at jamba juice, we're talking about blending peaches vs eating it raw and chewing it with your teeth. The molecular makeup of the food is 100% the same, the difference is it's physical attributes of it as you ingest it.

and eating a peach means you consume the juice and non juice components of one peach.

if you juiced one peach you get the calories of one peach minus the non juice components. which I'd estimate to be approx 100mls

if you drink a peach smoothie you consume the juices of many peaches minus the non juice components.

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