The Kenyan government has stated that up to 10 million people in Kenya are faced with a hunger crisis. Already a couple of people have died of starvation. The post-election violence last year caused many farms to be destroyed or to not be harvested. Additionally, the "short rains" didn't amount to much last November.
The graphic shows how dire the situation is. The little girl is eating wild berries that she collected herself. That's all many families are surviving on. You can see that the lady in the last photo is quite emaciated.