New research published in the journal Cancer Research on the breast cancer link with diet finds that high levels of dietary cadmium are likely to increase your chance of developing this form of cancer. Cadmium is a metal that is naturally a part of our environment, and is also a part of many farm fertilizers. It doesn’t take much for the substance to make its way into food – breads, cereals, potatoes, root crops and veggies. Experts have known for a while now that cadmium is toxic and in some forms cancer causing according to doctoral student Bettina Julin at Stockholm’s’ Karolinska Institutet.