calories/carbs in yogurt

Discussion in 'Open Forum With Harold McGee' started by drummer, Dec 13, 2005.

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  1. drummer

    drummer

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    I'm of the impression that the various lactobacilli used to make yogurt convert lactose to lactic acid. Lactic acid isn't metabolized as a carbohydrate so far as I know. The nutrition panels on commercial packages of yogurt give the same values as plain homogenized milk. Has not the bacterial action changed the nutrient profile, and if it has, how and to what extent?

    Thanks.

    Pastorio
     
  2. phatch

    phatch Moderator Staff Member

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    Are you talking plain yogurt? Flavored yogurt has lots of sugar.

    Phil
     
  3. drummer

    drummer

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    I'm asking about plain yogurt. My question concerns yogurt in particular and fermented milk products in general. Is the nutrient profile the same after fermentation? I doubt it, but I can't find anything authoritative to confirm or deny it.

    Pastorio
     
  4. harold mcgee

    harold mcgee

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    Lactic acid is a byproduct of carbohydrate metabolism in our bodies as well as in bacteria—it’s essentially half of a glucose molecule. Our bodies use it to re-synthesize glucose, so it does have an effective caloric value similar to that of other carbohydrates.

    Harold
     
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