I always have my energy level at 2500 or more, unless I need to heal (which is a lot, because I UA foxes and badgers and tame mouflon and aurochs on a regular basis), in which I go get food when I go below 4000. The only time I go anywhere close to 1000 energy when I'm working on a long project (like a palisade, or mining, etc.) Seriously, food isn't that rare; the first time my "Energy" bar went to 1000 and changed color and had (Starving), I went and checked my character's health and checked the Health and Wounds and saw my character was taking HHP damage and regular intervals, and went "oh shit" and got food. Maybe you can just eat stuff until your Energy is 1000 before logging off? I notice the biggest flaw many MMO gamers have is a lack of foresight.
If you plan on training a certain stat, just store food that increases that attribute, and eat it when you need Energy, and save Rats and the like when you need energy NAO. Don't worry about stats until you get to a settlement or establish one yourself. Get stuff before you need it.