Here you can find some youtube channels and blogs of interest.
Canal metabolizando (metabolizing channel) – this channel proposes to bring basic information related to metabolism and endocrinology. The videos used to be synthetic, short duration, but objective! Speech only in portuguese.
Ciência e Saúde (Science and health) – this is a blog writen by Prof. Lício A Velloso from the Campinas State University, which aim to bring actual and nice texts related to obesity and diabetes. Text predominantly in portuguese. Enjoy!