Want to Enjoy a Healthy Start? Weetabix is packed with fibre and is a great source of vitamin B1 which helps look after your heart*. Delicious with some raspberries and nuts on top to help banish those breakfast blues. It's a breakfast that will get you ready for anything! Have you had yours? Thiamin (B1) contributes to the normal function of the heart as part of a healthy diet and lifestyle The number 1 cereal brand in the UK and ROI based on the last 52 weeks of retail sales value from Nielsen up to 03.12.2016