I checked my herbal PDR (Physician's Desk Reference), while a PDR doesn't give you recipes for bread, it does breakdown the medicinal quality and compound of a plant, it says the following:
Actions and Pharmacology
COMPOUNDS:
Volatile oil: constituents vary greatly according to chemotype with perillaldehyde, L-limonene + perillaldehyde, perilla ketone, myristicin, dill apiole or elshotzia ketone predominating.
Caffeic accid derivative: romsmarinic acid (0.4-1.7%)
Monoterpene glucosides: including perillosides A to D citrusine C.
Flavonoids: apigenin glucoside and luteolin glucoside, estered to some extent with caffeic acid.
EFECTS:
Perilla aldehyde (chemotype PA) is sedative and antibacterial in effect; perilla ketone (Chemotype PK) acts as a propulsive in the GI tract. In addition, a cytotoxic and antitumerous effect was able to be demonstrated. Perilla leaves may trigger allergic skin reactions. In at least one study, serum cholesterol and trigliceride levels in rats that were fed Perilla oil were lowered.
Indications and Usages:
Unproven Uses: The herb is used pharmaceutically as an antisepti and for diseases of the mouth. The oil may also have positive antilipidemic effects.
Chinese Medicine: Perilla is used in traditional Chinese medicine for colds with fevr, coughs, shortness of breath, chills, swelling of the nasal mucous membrane, headach and to treat poisoning from ingestion of fish or crab. Efficacy for these indications has not yet been proven.
(Do not use during pregnancy)
Precautions and Adverse Reactions:
No health hazards are known in conjunction with the proper administration of designated therapeutic dosages. the Plant possesses potential for sensitization. In test with sheep using 15-20 mg/kg body weight admin per infusion. Perilla ketone triggered pulmonary edema. Perillaldehyde had mutagenic effect in some in vitro studies.
Mode of admin:
Whoel, cut, powdered drug preparations and oil for internal use.
Daily Dose: extract (aqueous): 3 to 10 g
Okay, that was a lot of medical jargon..

Maybe pick from it what you can.. Looks to me like it CAUSES allergic reactions in some cases... And a bit of a laxitive effect (rather, a propulsive, meaning it makes the muscles in the GI tract work faster) other than that, I'm not sure of what all that means.. Maybe it can help you out, maybe it can't.. You can probably google most of these terms, or check webmd.com. Let us know.
Chelsie