Why is Toxins in our Food Supply a problem? It is a big problem because these toxins take away nutrients from foods that our body needs. A lot of toxins are used in our food mostly in packaged and fast food. Crops also contain toxins which fights off pesticides. This causes people to buy the food companies are selling to them by making deals they know people would like.The effect would then hit us big. It will end up making people lack on nutritious food which can cause health risks to skyrocket. Farmers and food chains are to blame for using the toxins that are in our food.