One randomized controlled trial (RCT) and two non-randomized studies were identified regarding the clinical effectiveness of meal delivery nutrition programs for community-dwelling older adults. Low quality evidence from one RCT and one single-arm non-randomized study showed that meal delivery nutrition programs may improve loneliness among older adults. The same single-arm study showed a positive association between meal delivery nutrition programs and self-reported well-being. Frequency of meal delivery does not appear to be a factor. Low quality evidence from one controlled non-randomized study showed that a meal delivery nutrition program was not associated with perceived improvement in quality of life among community-dwelling older adults. No evidence regarding independence or other mental health or psychosocial outcomes was identified.