Garcinia cambogia, a tropical fruit also known as the Malabar tamarind, is a popular weight- loss supplement. People say it blocks your body' s ability to make fat and it puts the brakes on your. Garcinia cambogia fruit, also known as Malabar tamarind, has been touted as a " simple solution" that can " bust body fat for good. " It' s said to block the body' s ability to produce fat and suppresses appetite. 1 But is there any truth to these claims?