There are a few disadvantages to organic farming, such as the fact that it produces much lower yields than conventional farming, which in turn decreases the availability and increases the price. Organic fruits and vegetables often cost as much as 15 to 20 percent more than non-organic. It is also thought that the organic farms are less efficient at getting their product to market, sometimes leading to lower quality goods.
There are studies that claim that the lowered quality and higher price has nothing to do with the farming methods, but instead is due to the increased time it takes it to get from the farm to the store. These studies claim that done properly, organic farming can be competitive with conventional farming in both cost and yield.
Some studies have also that shown organic fruits and vegetables usually contain higher levels of many vitamins and minerals, as well as lower levels of various heavy metals and nitrates.
While it has been shown that growing some vegetables using organic methods produces as much as 50 percent less than conventional farming, the total amount of energy needed for organic farming is also approximately 50 percent less than what is needed for conventional farming.