Vitamins, minerals and other specialised nutrients are an intrinsic part of the process of generating energy; a lack of these nutrients can result in tiredness, exhaustion and lethargy. Hectic lifestyles have resulted in food being relegated to a low priority, often grabbed ‘on the run’ with an emphasis on convenience rather than nutrition. In these circumstances it is hardly surprising that most people complain of tiredness. The production of energy requires carbohydrates, fats and proteins. A range of vitamins and minerals must also be available to support various stages of the energy generation process.