Self-reporting food intake is when people fabricate a list of what they vaguely recall eating, while omitting things that "didn't count" and adding things they "should have been eating and totally will so let me write it down anyway".
Nutritionists themselves cannot be trusted to acurately self-report their diet.
Even when you tell people in a study their food intake is monitored independently, so they should report acurately what they eat, they still write total bullshit and/or lie.
It is very, very well established that self-reporting is not remotely reliable and no conclusion can be drawn from it. But researchers keep using self-reporting because "it's more convinient", but a step beyond useless. It's misinformation. And they still draw "conclusioms" from those studies.
Most nutrition studies rely on self-reporting.
Self-reporting food intake is when people fabricate a list of what they vaguely recall eating, while omitting things that "didn't count" and adding things they "should have been eating and totally will so let me write it down anyway".
Nutritionists themselves cannot be trusted to acurately self-report their diet.
Even when you tell people in a study their food intake is monitored independently, so they should report acurately what they eat, they still write total bullshit and/or lie.
It is very, very well established that self-reporting is not remotely reliable and no conclusion can be drawn from it. But researchers keep using self-reporting because "it's more convinient", but a step beyond useless. It's misinformation. And they still draw "conclusioms" from those studies.