Title: Fundamental physics results with the MAGIC telescopes Abstract: MAGIC is a stereoscopic system of two Imaging Atmospheric Cherenkov Telescopes located on the Canary island of La Palma that detects gamma rays from 30 GeV to 50 TeV. Observations by MAGIC allow to probe, among others, various fundamental physics topics. Two of these topics are the nature and the distribution of dark matter, and the search for Lorentz Invariance Violation (LIV) effect in the attempt to build a quantum theory of gravity. MAGIC is actively conducting searches for gamma-ray signals from WIMP dark matter annihilation and decay towards various targets such as the Galactic halo, dwarf spheroidal galaxies and clusters of galaxies. In particular I will report on recent efforts from different gamma-ray experiments including MAGIC to combine their data in the search for dark matter annihilation in the direction of dwarf spheroidal galaxies. In this talk, I will also present the latest results on the search for LIV effect which includes the observations of flares of AGN such as Mrk421 as well as the observation of TeV photons from the gamma-ray burst GRB 190114C.