Calculation on food package

sweetpea7441

Hi. My brain has gone totally blank on me... How do I adjust the nutrition data on the back of food packets, so that it matches what I eat? E.g (totally made up example) the package is 300gram of 8 cookies. 25 cal per 100 gram. How do I calculate what 1 cookie would be? Believe it or not, I work in finance..... My brain is just............. :ohwell: Thanks.

seekingstrengthX2

300 / 8 = 37.5 - each cookie weighs 37.5 grams

If the serving size is 100 grams, then you ate .375 serving sizes.

PeeTeePee

Hi. My brain has gone totally blank on me... How do I adjust the nutrition data on the back of food packets, so that it matches what I eat? E.g (totally made up example) the package is 300gram of 8 cookies. 25 cal per 100 gram. How do I calculate what 1 cookie would be? Believe it or not, I work in finance..... My brain is just............. :ohwell: Thanks.

8 cookies = 300g
1 cookie = 300 / 8, roughly 40g
100g = 25 cals
40g = 25 / 100 x 40, roughly 10 cals

cramernh

300gm=8 cookies
150gm=4 cookies
75gm=2 cookies
32.5g=1 cookie

for every 100gm = 25 calories. (Based on what you posted)

1/3 of 8 cookies is 2.66 cookies = 66.5 calories

This is how Im understanding it from your OP

batalina

if there are 8 cookies in a serving and you ate 1, you ate 1/8 of a serving.
to change that into a decimal, divide 1 by 8.
1 divided by 8 is .125, so you ate .125 of a serving.

(i have to do that ALL the time.)

ETA: i do this after i find the food listed in MFP. so i'll add the listing, as it is in the database, to my food diary, and then adjust it to reflect the amount i actually ate. i just re-read your post... sorry if this wasn't what you meant/were asking >_<

crstnaa

You'd divide the numbers. 300g divided by 8 cookies is 37.5 grams a cookie. For the Calories I would find how many calories are in one gram and then multiply it by how many grams one cookie is. 25 calories divided by 100 grams gives you .25 calories per gram. .25 x 37.5 gives you 9.375 calories per cookie.

I hope I didn't explain it in a complicated way.

sweetpea7441

Thanks everyone.