6 min read
Do You Need to Weigh Food to Count Calories?
Weighing makes calorie tracking more accurate for loose foods like muesli and rice, and barely at all for bread. What the research shows.
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How accurate is calorie tracking?
Calorie numbers look precise and are not. Labels are averages, restaurant dishes vary from what the menu says, portions get misjudged by eye, and almost everyone underestimates what they ate. These guides go through each source of error and how big it turns out to be.
This matters less than people fear, and in a different way than they expect. An estimate that is wrong by roughly the same amount every day still gives you a trend you can act on. An estimate that swings around does not.
So the useful question is not how to get this exactly right. It is which errors are worth doing something about and which ones you can stop worrying over. Weighing your cereal changes your number. Weighing a slice of bread mostly does not.
We are upfront about all this because the alternative is worse. An app that presents a daily total as fact sets you up to distrust the whole thing the first time the scale disagrees with the maths. Knowing the error is there is what makes the trend believable.
The guides here take the sources one at a time: labels, restaurants, memory, and whether the scales in your kitchen earn their place.
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Guides in this topic
5 min read
Are Restaurant Calorie Counts Accurate?
Restaurant calorie counts are accurate on average, but not reliably so for any single dish — some run hundreds of calories higher than listed.
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Why Do I Always Underestimate How Much I've Eaten?
Underestimating how much you've eaten isn't a willpower problem, it's a well-documented memory effect. Here's what the research actually shows.
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