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# Percent Calories from Protein, Carbohydrates, and Fat

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Gather three of your favourite packaged foods; perhaps one from each: breakfast, lunch and dinner. Use the model explained in the "Are You Sure It's Fat Free?" to analyze, through the mathematical formula explained, the fat content and protein content from your foods. To analyze the protein content use 4 calories per gram of protein, rather than the 9 calories for grams of fat.

##### Solution Summary

We analyze various food items for their percentage of calories from protein, carbohydrates, and fat.

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I picked out the following three food items: Ralph's creamy peanut butter, Campbell's chunky sirloin burger soup, and Marie Callendar's swedish meatballs.

The peanut butter has 190 calories per serving, which contains 8g of protein and 16g of fat. Thus, the ...

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