When it comes to things like rice, you can do either—you can use the cooked numbers, or the raw numbers. Just don't confuse them with each other.
For instance, 42 grams of UNcooked rice has about 0g fat, 2g pro, 34g carbs.
100 grams of COOKED rice has the same macros.
So, just go with whichever one is appropriate. If you weigh out the raw stuff, then go with the raw numbers. If you just cook a whole bunch of rice and once and then eat it out of the refrigerator—let's be serious, who has the time to cook rice every single time you want to eat it—or if you get rice from take-out, then use the cooked numbers.
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When it comes to meat, now, that's a whole different animal.
If you are talking GROUND meat, then the "raw" numbers are going to be WAY off. Like "not even funny" level of off, the fat could be as much as 300% of the actual value.
I did a post on that, with ground beef. (the url ends with nutrition-health/228399-cooked-ground-beef.html)
You should just read the post, but the upshot is that 20/80 ground beef has 23 grams of fat per 4 oz raw, but that drops all the way down to 8 grams of fat when you cook it. Unless you don't drain it. But I'm sure you drain it.
Seems like you are making this way harder than it needs to be. Just ... keep it consistent, even if your numbers for calories are wrong you are still getting in the same amount day in and day out
Whoa, no. Unless he literally eats exactly the same foods day in and day out.
If he eats a dish with 20/80 ground beef (which loses 2/3 of its fat when cooked) on Monday, and then a dish with chicken breast (which really doesn't lose any fat) on Tuesday, he is going to drastically overestimate his calories for Monday.