# These just example equasion. Use the mathematical formula to explain the fat content and protein content from the foods. To analyze the protein content use 4 calories per gram of protein, rather than the 9 calories for grams of fat. Show steps and fo?

## 1 Answers

Oddman answered
No mathematical formula is given.

(a) 6 oz of yogurt is about 170 grams. As there is no fat, the 5 grams of protein account for 5*4 = 20 calories. The remaining 80 - 20 = 60 calories probably come from sugar (lactose). The total of 80 calories accounts for 80/4 = 20 grams of the weight. The remaining weight is likely mostly water.

(b) 2 oz of low-fat cottage cheese is about 56.7 grams. The 4.5 g of fat accounts for 4.5*9 = 40.5 calories. The 12 g of protein accounts for another 12*4 = 48 calories, for a total of 88.5 calories in the product. (Apparently, only calories from fat are reported in the 40 calories claimed.)

(c) 2 oz of ham is about 56.7 grams. 1 gram of fat accounts for 1*9 = 9 calories, and 5 g of protein accounts for 5*4 = 20 calories, for a total of 9 + 20 = 29 calories. This closely matches the 30 calories claimed for the product.

The number of grams of product depends on whether the product is measured in fluid ounces (volume) or ounces of weight. "1/4 cup" is a volume measure equal to 2 fluid ounces, different from 2 oz weight by roughly 2.5 grams for products with a density near 1.
thanked the writer.
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linda butch commented
What I need to know is how to figure the formula using 4 calories per gram of protein, rather than the 9 calories for grams of fat. It is based on a one size serving using the wt listed. (hence wt = 1 serving size) Thanks
linda butch commented
I need to find the % rate (the Fat content is :- (18/160) x 100 % = 11.25 %

Protein content is 4 grams in 360g
So protein content is :- (4/360) x 100 % = 1.11%) only using 4 cal pr grm of protein
Oddman commented
Percent of calories from protein: (a) 20/80*100% = 25%; (b) 48/88.5*100% ≈ 54%; (3) 20/30*100% ≈ 67%

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