Hello!I am Portuguese too, and in Lisbon there is a Macrobiotic institut , I don't know if there is any comunity in the country, Sory.
Besides the Portuguese Macrobiotic institut, were there are clases of macrobiotics and macrobiotic cooking classes, besides yoga , tai chi, They have a great web Page!There are in fact a lot of restaurants were you can eat macro food in Lisbon.
I´m thinking of doing yoga there and maybe some cooking clases.