sam2- youre dechiya thing is off- its a lav sheyaish bo kareis. id like to point out agav, that i cant seem to find any lav or drasha that actually assurs achils. rashi says that the ribuyim are on milacha. i challenge you to find a lav on eating. so my upshlug is lideeduch.
also it was R yeshua leib diskin who made sure to eat raisins all day. see city of fire/heaven?dont rtemember the title. also see seraph of brisk.