A calorie is the amount of energy it takes to heat 1g of water by 1degree centigrade mate, its just a unit of measurement. A calorie is always a calorie… food types however are different… this is where some profesionals confuse people by saying ‘calories arent always the same’
A calorie is always the same amount of energy, just like a mile is always the same length and a kg is always the same weight… they dont change.
The things you’re measuring have different properties, but the measurement units dont change.
A calorie from chocolate and a calorie from broccoli are the same (the energy avaiability)
The nutritional properties of a calorie of chocolate compared to the nutritional properties of a calorie of broccoli are very different in terms of the actual food and its properties
If you’re losing weight you’ve changed your total energy intake vs expenditure somewhere…
Looks like you’ve been conciously going with better and more sasiating/filling food choices which has now stopped some previous subconcious behaviours (snacking or not counting certain foods etc) or the nutrition label was wrong
Could even be that calories haven’t change but you’ve dropped your carb intake and have lost water and glycogen, or food better food choices are producing better digestion and theres less food in your gi/gut and stomach
Do you know for sure if its fat loss, as the scales just measure total bodyweight… are you taking any waist measurements or anything else?
Hope you dont mind me chiming in @TomIrvNutr23