The discrepancy on Li^7 and Li^6 abundances between the observational data
and the standard Big Bang Nucleosynthesis theory prediction has been a nagging
problem in astrophysics and cosmology, given the highly attractive and
succesful Big Bang paradigm. One possible solution of this lithium problem is
through hadronic decays of a massive metastable particle which alter the
primordial element abundances. We explore this possibility using gravitino dark
matter framework in which the next lightest supersymmetric particle (NLSP) is
typically long-lived. We found that stop NLSP can provide an attractive
solution to the lithium problem.Comment: 12 pages, 3 figure