A Study of Health-Related Quality of Life in People With Multiple Myeloma Receiving Daratumumab or Lenalidomide

dose of 10mg oral lenalidomide on days 1-21 of each 28-day cycle.

1800 milligrams (mg) subcutaneous (SC) injection of daratumumab as follows: days 1, 8, 15, and 22 of cycles 1 and 2; days 1 and 15 of cycles 3-6; day 1 of cycles 7-36

EORTC QLQ-C30, EORTC QLQ-MY20, PRO-CTCAE)

The intervention, consisting of fully prepared whole foods plant based (WFPBD) meals and behavioral coaching provided by Daily Harvest. Patients receive self-selected WFPBD meals (lunch/dinner) for 12 weeks, along with guidance for snacks and breakfast. Behavioral counseling will be provided by health coaches and a research dietitian. The first 15 participants on each arm interested in this intervention will be enrolled on C13D1 or C25D1.