Nairn's Gluten Free Wholegrain Cracked Black Pepper Crackers are full of wholesome, wholegrain oats and high in fibre so are a great natural way to fuel your day. They also come in handy pouch packs so are perfect for popping in your bag for on the go. Nairn's Gluten Free Wholegrain Cracked Black Pepper Crackers are full of wholesome, wholegrain oats and high in fibre so are a great natural way to fuel your day. They also come in handy pouch packs so are perfect for popping in your bag for on the go.