Weighing EVERYTHING

From reading some other threads, it seems people (geniusgamer being the latest) get beat up on here for not weighing EVERYTHING. In his post, geniusgamer said he eats prepacked frozen meals and logs his calories based on the nutrition info on the package. Some posters suggested that his lack of weight loss was due to not weighing the meals because there could be more food than listed. Even though he said he was only eating 1000 cals a day as a 230lb male! Even if all his meals are under-labeled by 20%, he would still be only consuming 1,200 if he was truly logging everything he ate. So really I doubt the problem is because he did not weigh his prepackaged meals.

I think most people can get a pretty good estimate of their calories without weighing and logging down to the gram. I think the reality is, no matter how meticulous you are with weighing, we can't get the exact calories for things unless we are lab testing everything we eat. So maybe we are off by 100-200 cals by not weighing, sometimes it may be over but sometimes it may be under. Does that mean the weight won't come off? Most people being beat up on the forum for not weighing everything is eating much more than a 200 deficient. Posters seem to accept that exercise calories are estimates so why can't a little error in calories also be accepted?

Just because you don't log all your food to the gram does not mean your logs are garbage.
Personally, while I do weigh things like fish, meat, and very calorie dense things, I eyeball or trust nutritional information for other things such as spring mix and pre-sliced bread. Things like spring mix and spinach, I just don't think matter enough to weigh as it has so little calories- I'll do an estimate of 2 cups for lunch. Even though posters on here say that the nutritional info on labels might not be right (ex: 1 slice of bread might not be the 50 grams listed), I think on average it should still be pretty accurate. And if it is really that inaccurate how can you even trust the calorie count per weight? For a container of yogurt that I eat by myself and has 4 servings, I eyeball 1/4th each time and log as 1 serving so sure sometimes I may be eating more than 1 serving but sometimes I am eating less and so on average my calorie should be correct without having to weigh and log exactly how much I'm eating each time. Makes life much simpler.

And sure, I can weigh an apple every time I eat one and log it down to the gram, but how do I know it has the exact calorie content as the MFP apple listing even if they are the same weight? I'm sure different varieties of apples have slightly different water/ sugar content/ calories. I'm perfectly happy weighing food items a few times to know what a "small" 6 oz apple looks like vs a "large" 9 oz apple but then after that I eyeball and then log just 1 small apple rather than weighing and logging 6.5 oz.

Yes I do agree weighing calorie dense things is a good idea so if I'm eating peanut butter or if I'm cutting a piece off a block of cheese I will weigh it. But if I am having a fun size twix bar, are you really telling me I can't just log that as one 80 cal fun size twix and I need to get out my scale and weigh it??? Should I be measuring cans of soda to make sure they really have the volume stated on the can?

If you want to be super accurate in your serving sizes by weighing EVERYTHING then great but I doubt it is necessary for most people, especially people who have large deficits for their calorie goals. I think it is much more important to log EVERYTHING you eat (if I don't log my pre sliced piece of bread I will be 80 cals off/ if I don't weigh it, I may be what, 10 cals off?)