"Mae gadael yr UE yn golygu llawer iawn o ansicrwydd ac mae'n cynnig heriau a chyfleoedd i bob sector gan gynnwys bwyd, pysgodfeydd, ffermio, coedwigaeth a'r amgylchedd. Ond wedi dweud hynny, mae hi'n aruthrol o anodd rhagweld effeithiau Brexit.
“Leaving the EU brings a high degree of uncertainty, and poses both risks and opportunities across sectors including food, fisheries, farming, forestry and the environment.   However, accurately predicting the impacts of Brexit is incredibly difficult.