Nutritional information may vary depending on flavour. Packed with protein, and crammed with carbs - our flapjacks support your workout goals while helping you recover session after session.1 What is a protein flapjack? Made with oats, protein, and a whole host of other delicious ingredients our Protein Flapjack is the perfect post-workout pick-me-up, or simple anytime treat without the cheat. And, they’re suitable for vegetarians too.