The problem with a liquid diet is macronutrient (protein, fat, carbs) density is really low compared to solids, and some things (types of fibre) are insoluble. I don't see a 2m+ humanoid surviving on liquids alone; the constant intake of food is typical of a sessile or browsing/grazing animal.

The problem with a liquid diet is macronutrient (protein, fat, carbs) density is really low compared to solids, and some things (types of fibre) are insoluble. I don't see a 2m+ humanoid surviving on liquids alone; the constant intake of food is typical of a sessile or browsing/grazing animal.

Edit:

The only way I see around this is a diet of specific liquids that have been designed or evolved specifically to be consumed by this species into and through adulthood, which again seems unfeasible without magic playing a role.

The problem with a liquid diet is macronutrient (protein, fat, carbs) density is really low compared to solids, and some things (types of fibre) are insoluble. I don't see a 2m+ biped evolving to survive on liquids alone; the constant intake of food is typical of a sessile or browsing/grazing animal.

The problem with a liquid diet is macronutrient (protein, fat, carbs) density is really low compared to solids, and some things (types of fibre) are insoluble. I don't see a 2m+ humanoid surviving on liquids alone; the constant intake of food is typical of a sessile or browsing/grazing animal.