A California law passed in 2008 and set to go into effect January 1, 2015 will affect egg prices nationwide. The law requires farmers to house hens in cages with room to stretch their wings. Farmers in other states, including Ohio and Iowa will have to comply because supply eggs to California.

California consumes more eggs than any other state and imports more than 30 percent of its supply.

Farmers will have to enlarge hen houses to give the birds room to stretch. The expense will be borne by egg consumers at grocery stores according to farmers unhappy with the new law.

Egg prices have already increased due to the holiday season, cold weather and increased egg sales to Mexico and Canada. Experts say prices will ultimately be 10 to 40 percent higher in California and level off to normal prices in other parts of the U.S. Bruce Levenson and others who eat a lot of eggs may be impacted.