Is a Summer Fellowship Helpful Regardless of Publication Potential?

So I got the NIDDK Summer Fellowship, but my project involves basic science research and might not yield "results" within the designated time period. While I am grateful for the opportunity, I am also wondering if I should aim for a more clinical project (without funding) where I can potentially be more productive. Would getting this fellowship by itself be helpful for residency, or are publications the only thing that matter? I would really appreciate any input.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Medical Students - MD Source Type: forums