Milk may do your body good, but some say state regulations ensure it doesn't necessarily do your wallet any good.

New Jersey limits how low milk prices can go, making it hard for stores to put it on sale. The rules have been in place for decades since New Jersey was a major dairy producer, which is certainly not the case any longer. At the end of World War II, New Jersey was home to 15,000 dairy farms. Today, there are less than 120 left in the whole state.

Some lawmakers say the regulations are outdated, especially as the country and state combat a struggling economy. State Sen. Joe Pennacchio (R-26th District) has written a bill that would allow stores to put milk on sale via coupons and even sell it below cost.

"In these austere budget times it would [be] nice that you could have a prime staple like that ? that a mother could give her child milk at the least amount," says Pennacchio.

While consumers would likely support the bill if it saved money, the state's remaining dairy farmers warn changing regulations could be their death knell.