If you feel the need to use raw linseed oil, go right ahead.
The seeds it is pressed from is sold on top of bread and loose, for you to toss on bread dough.
Just don't use boiled or varnish. I've seen linseed varnish containing litharge (a lead compound) as a drying agent.
Otherwise, go right ahead with grape kernel oil. It's just like the show "The Young Ones", utterly tasteless!
Or, if you want that yellowish tinge, use Rape (no sniggering in the back!) oil.