I really struggle with logging my pork belly too. The packaging, at least where I buy it, generally has the calorie and macro info for the raw meat, but that's considerably different from the end result when a lot of fat has rendered off. Even if you jump through the hoops of weighing and subtracting the fat left in your pan, it's still totally a guesstimate because you don't know how much fat to meat there is in the piece you're actually eating. And if you use cooked calories and macros, the end result of fat/protein can vary so much based on how you cook it. Ahhhh!!!! It's been driving me crazy too lol. I'm trying really hard to cut back on my protein and it's a great fatty meat option, but the flip side is, it's difficult to measure your actual intake. I've just accepted that it's a random guess and am using my blood glucose measurements to determine if my portions have been too big.