In fact , all branded food and drink served at the Olympics will come from just five companies : McDonald 's , Coca - Cola , Cadbury , Heineken and granola - bar maker Nature Valley .
And the only beer on tap at Olympic venues is Heineken .
All branded food and drink served at the Olympics will come from just five companies : McDonald 's , Coca - Cola , Cadbury , Heineken and granola - bar maker Nature Valley .
And the only beer on tap at Olympic venues is Heineken .