One of the most common causes of fatigue is anemia (low iron levels). This reduces the capacity of blood to deliver oxygen to the tissues. This can happen because of a faulty diet.
Another reason for chronic fatigue can be low blood sugar (glucose) levels. The body needs glucose for energy and if you do not follow a low glycaemic index (GI) and low fat eating plan, you will always feel tired. You need a constant supply of energy throughout the day. We live in a stressful world and we all need good nutrition, which gives us a powerful tool to deal with stress. Day-to-day pressure can weaken the immune system and can cause illnesses such as cold, flu and coughs as well as a general feeling of being tired.