You did not just diss Bajo by undermining his profession and displaying a serious lack of respect? He's been extremely generous with his legal advice to many members of this forum.
The RDA (Ingesta diaria recomendada/ ingesta diaria aplicada) was created in the States, but there's a lot controversy surrounding it because some of the recommended daily allowances in the US are higher than in other countries. So I wouldn't use it as the Bible.