For optimum brain function breakfast is a must. In fact, it really is the most important meal of the day. Glucose is the primary fuel source for the brain, but the supply of glucose needs to be kept balanced throughout the day. Blood-glucose levels are generally at their lowest after a night of fasting, so eating well in the morning is vital to replenish energy stores.
At breakfast it’s important to have some protein, such as meat, fish, yogurt, nuts and seeds or eggs. This makes the meal satisfying and prevents your blood-sugar levels from plummeting soon afterwards (see pages 16–25). Breakfast is also the ideal time to sneak in some essential fats, whether it’s a portion of oily fish, omega-enriched eggs, or a handful of flaxseeds or chia seeds. If you don’t feel hungry or are short of time in the morning, you will find many of these recipes are quick and easy to prepare, and can be taken with you to eat on the morning commute or at your desk.