I don’t remember any calorie-counting guide mention this fundamental factor — “Water content in foods seriously affect satiation, calorie density (kcal/100g) etc”

— eg: smoothie .. ice is filling (satiation)
Protein powder without ice is completely ineffective as a meal replacement.
— eg: congee .. water content improves calorie density.
Chinese soup has a similar feaure but usually has more oil.
— eg: lotus root powder .. I tend to put in mix 20g with 500g of water… much better calorie density
— eg: chia .. iFF soaked in water, chia would become filling.
It is ineffective to put it in milk or hot soup