Cancer is a disease caused by an irregular hormonal pathway that results in the growth of flesh in normal body tissues, often known as malignant tumors. In addition, these symptoms are also known as malignant neoplasms. They are often characterized by characteristic cell cycle abnormalities that give rise to the ability of cells to grow uncontrollably, invading nearby biological tissues. These cells migrate to other body tissues through the blood circulation or lymphatic system, called metastasis. This study aimed to analyse the relationship between nutritional status and the frequency of chemotherapy in cancer patients. This study uses a literature review method based on references from ten national journals sourced from Google Scholar for the last five years. It uses the keywords frequency of chemotherapy, cancer patients, and nutritional status. From this study, the frequency of chemotherapy given to cancer patients is quite influential on the nutritional status of chemotherapy patients depending on the patient's immune system. Many patients are malnourished due to decreased appetite while energy needs in the body increase.