e21617 Background: the identification of nutritional status (NS) of a patient (PT) with cancer (Ca) can impact the success of cancer treatment and their overall prognosis. Goals: Define the NS of Ca PT admitted to determine what relationship exists between the NS PT, type of treatment received and the nutritional risk (NR) of antineoplastic therapy, implement the use of nutritional supplements in PT with NR or malnutrition (MNT). Methods: a prospective, descriptive and analytical study where 52 Ca PT were evaluated during 2014. Results: the most prevalent type of Ca was colon (17.31%). The VGS initial GP (Subjective Global Assessment PT-generated) showed that 36.5% (n = 19) of the sample showed normal, 42.3% (n = 22) NR and 21.1% (n = 11) MNT. When they were assessed with BMI was seen that 82.7% (n = 43) of the sample showed normal, overweight or obese. As for the percentage weight change (PWC), this was severe in 30.7% (16) cases and significant in 21.2% (n = 11). Importantly, all PT had severe PWC (30.7%), 68.75% had a normal BMI, overweight or obese, but without statistical significance (p = 0.15). PT with gynecological Ca (86.7%) were those who had less weight loss, while PT with other types of Ca (pancreas, head and neck, and lung) were those who had a greater weight loss (60% ) (p = 0.006). Of the PT who were not supplemented 22.2% (n = 6) worsened their IN, 7.4% (n = 2) improved, while the rest remained (p = 0.0001) The mortality rate was 21.2% (n = 11) of the total, 27.3% and 45.5% of PT in NR and MNT respectively died (p = 0.008). Lung Ca was the main reason of death in these PT, continuing pancreatic and gastric Ca, in 37.5%, 33.3% and 28.6% respectively, although without statistical significance. (P = 0.67) Conclusions: PT come to the interconsultation when the EN is already deteriorated or advanced MNT. BMI, unlike PWC, is not a good indicator in these PT. In PT with gynecologic Ca more overweight and less weight loss is observed when compared with another Ca. In this study the PT in the NR is independent of antineoplastic treatment, more than half of PT facing therapy NR or MNT. Nutritional support is essential for nutritional intervention in these PT, even more so when indicated early.