For example, a weak positive association between levels of the acrylamide adduct N-(2-carbamoylethyl)Val from Hb in 269 breast cancer cases was reported from the “Danish Diet, Cancer and Health Study” with an incidence ratio of 2.7 fold per tenfold increase of N-(2-carbamoylethyl)Val (95% CI 1.1–6.6) (Olesen et al. 2008). Here, GSTM1 is linked to breast cancer.