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Using an app to rate food for nutrition? Take the results with a grain of salt

Using an app to rate food for nutrition? Take the results with a grain of salt
Food apps allow you to scan the food's barcode with your phone camera. The app will then rank the food for it's nutritional content. Some apps will flag ingredients and additives. But do they really help consumers make healthier choices? We head to a grocery store to find out.

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