"My name is Chelimo and I live in North Kenya. My family have not been able to grow any food this year. All we have to eat is poisonous berries.

"It takes us two days to prepare them and remove the poison. First we remove the outer shell and then dry the berries in the sun. After that we boil them for 12 hours  and skim off the poisonous water. Then we rinse the berries and peel them and finally they are ready to eat"