Yes, virtually everything. Out of about 10,000 samples of 731 different food products, the FDA found nothing within orders of magnitude of these lead levels.

http://www.fda.gov/downloads/Food/FoodScienceResearch/TotalD...

pp. 69-80

Sure, Lab-Grown Petri Dish Meat© is perfectly safe.

*Name still pending, all rights reserved, GloboCorp Inc.