Aside from casein, you'll also find that many so-called "natural" food products contain MSG in the form of yeast extract, another deceptive ingredient used in many natural foods.

除了酪，您也会发现，许多所谓的“天然”食品含有味精的形式，酵母提取物，另一种骗人的成分中使用的许多天然食品。

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Oberto has set out to "rehabilitate" jerky, removing corn syrup, dextrose, the preservative sodium nitrite and flavor-enhancing monosodium glutamate from its products. (The Teriyaki varieties contain soy sauce, which the company says contains naturally-occurring MSG.) A BBQ Pork jerky from Oberto is so popular around the office that Mr. Ennis says even he has trouble getting it at times.

WSJ: Krave, Perky Jerky and Others Remake Beef Jerky as a Healthy Protein Snack