March 21, 2012

Toxin in Food Linked to Breast Cancer

(Ivanhoe Newswire) — Our known healthy foods may be doing more harm than good! An extremely toxic metal commonly distributed in the environment and found in many farm fertilizers has been found to increase the risk of breast cancer.

Dietary Cadmium, usually occurring at a low concentration naturally, has scientists concerned that the increasing contamination of farmland due to use of fertilizers and atmospheric deposition will lead to higher uptake in plants.

"Because of a high accumulation in agricultural crops, the main sources of dietary cadmium are bread and other cereals, potatoes, root crops and vegetables. In general, these foods are also considered healthy," Agneta Ã…kesson, Ph.D., associate professor at Karolinska Institute in Sweden, was quoted as saying.

A current study used a food frequency questionnaire to measure the dietary cadmium exposure in 55,987 women for over 12 years. During follow-up, 2,112 incidences of breast cancer were recorded, 1,626 of them estrogen receptor positive and 290 were estrogen receptor negative cases.

Cadmium consumption was divided into three groups; the highest level was compared to the lowest level of exposure. A higher exposure to cadmium through diet was linked with a 21 percent increase in breast cancer. Even more shocking, the increased risk among normal weight and lean women was 27 percent! Both estrogen receptor positive and negative tumors had the same risk increase of about 23 percent.

SOURCE: Cancer Research, March 2012