 This pilot clinical trial studies Salvia hispanica seed in reducing the risk of returning disease recurrence in patients with non-Hodgkin lymphoma. Functional foods, such as Salvia hispanica seed, has health benefits beyond basic nutrition by reducing disease risk and promoting optimal health. Salvia hispanica seed contains essential poly-unsaturated fatty acids, including omega 3 alpha linoleic acid and omega 6 linoleic acid; it also contains high levels of antioxidants and dietary soluble fiber. Salvia hispanica seed may raise omega-3 levels in the blood andor change the bacterial populations that live in the digestive system and reduce the risk of disease recurrence in patients with non-Hodgkin lymphoma. 