yupz, they are as nutrituos as potatoe chips. although the ones you buy frozen from your
lfs are vitamin enriched. my
lfs here in hawaii sells adult brine shrimp for about $1 for 2 tbl spoons. i feed them as snacks inbetween meals. i guess if you freeze your own just make sure you freez them in fresh cold water and not the water you were raising them in.
good luck