Various studies have discovered that SGLT1 is overexpressed in different cancer types: prostate cancer (Blessing et al., 2012), ovarian carcinoma (Lai et al., 2012), oral squamous cell carcinoma (Hanabata et al., 2012), head and neck carcinoma (Wright et al., 2011), pancreatic cancer (Casneuf et al., 2008) and colorectal cancer (Guo et al., 2011). Here, SLC5A1 is linked to cancer.