Yes but that assumes that you eat the exact same ratio and quantity as your 4 year old child, for example.
Sometimes it feels like my 4 year old eats more than me. The ratios are definitely different though.
That is an example. Correct.
What’s the issue?
It isn’t telling you how many calories you consumed. It’s just insights into the nutrition from the food you consume.
And that's key. Calories are important, but most people will naturally eat less calories as they shift from carbs+sugar to foods with higher protein and fiber content.