Do any lacks appear during a week of Fasting ?

To function the body needs Oxygene, Carbohydrates, Amino-acids, Vitamins and Minerals. With Fasting, the body breaks down and uses stored-up reserves. Whoever nutritionalises himself wholesomely, does not need to worry – depending on how well our "pantry" is stored up. A seven-day-fasting hardly results in an imbalance of vital elements.