Disclosed herein is the novel use of use of a Bauhinia spp. extract, which may upregulate neprilysin, induce autophagy, protect neuron from amyloidopathy or tauopathy, and/or promote neurite outgrowth, thus the Bauhinia spp. extract of the present disclosure may be used as a dietary supplement for the prophylaxis or treatment of amyloid related neurodegenerative diseases so as to ameliorate or alleviate symptoms associated with the amyloid related neurodegenerative diseases.