Thin Red Line -- Interloper

[Vince 49]

'Best I remember, for Stalker, you need to eat more than 600 calories per day to prevent the infamous red line over your fatigue icon.  It appears to be something like 1000 calories for Interloper.  Does anyone have a more accurate number?

[BareSkin]

I've lived several nights in a row on interloper with eating only 750 calories before sleeping, which sets the limits to a maximum of 750/day. My opinion from personal experience is your fatigue capacity gets reduced on a time basis, when was the last time you've eaten a calorie? Or maybe number of consecutive hours you've been starved, which is the same.