I ran similar numbers and experiments over and over. In the end I found composition and "starting weight" matters quite a lot. https://jodavaho.io/tags/diet.html
You can easily go +/- 5-10 lbs at my height, just by choosing carbs over protein or fat, and it's not "Fat loss" or body composition, it's water weight associated with converting carbs to something your body can use.
Then a fast day drops you another 5-10 lbs for opposite reasons + burning glycogen stores. And that >10% swing in body "weight" is just noise on the calorie estimates if you plug it directly into such a calculator.
(as an example, if I choose 2000 calories of carb-heavy foods, I will weigh more, increasing my calorie "budget" to maintain weight b/c I eat more carbs, producing a higher weight, further increasing my calorie "budget", etc etc).
I can find 2200 for my 2 meter height, or 2500, or 1800, depending on input weight, and since input weight varies by day, and by caloric intake (due to food weight, water weight, and weight gain), it's not reliable to say the "average" person is healthy with 2400 calories. Because perhaps that person should be eating different foods or have 10 lbs less bodyfat to begin with!
I find you have to reverse-engineer it given what you know to be a healthy weight including muscle and fat composition.
You can easily go +/- 5-10 lbs at my height, just by choosing carbs over protein or fat, and it's not "Fat loss" or body composition, it's water weight associated with converting carbs to something your body can use.
Then a fast day drops you another 5-10 lbs for opposite reasons + burning glycogen stores. And that >10% swing in body "weight" is just noise on the calorie estimates if you plug it directly into such a calculator.
(as an example, if I choose 2000 calories of carb-heavy foods, I will weigh more, increasing my calorie "budget" to maintain weight b/c I eat more carbs, producing a higher weight, further increasing my calorie "budget", etc etc).
I can find 2200 for my 2 meter height, or 2500, or 1800, depending on input weight, and since input weight varies by day, and by caloric intake (due to food weight, water weight, and weight gain), it's not reliable to say the "average" person is healthy with 2400 calories. Because perhaps that person should be eating different foods or have 10 lbs less bodyfat to begin with!
I find you have to reverse-engineer it given what you know to be a healthy weight including muscle and fat composition.