Scientists have calculated the daily iodine requirement of the entire Swiss nation to be only 25 g (less than 1 oz). Perhaps this small estimate is correct. At any rate, only minute amounts of this mineral are necessary to meet our needs. On the other hand, if it were lacking, an abundance of the best nutrients and vitamins could not prevent the stupefaction and death of the Swiss people. It is a fact that a deficiency of iodine especially affects the thyroid gland and triggers strange symptoms. For example, a goitre can form, or myxoedema can result, leading to mental stupefaction. Conversely, an iodine disorder can cause exophthalmic goitre. This problem is recognised by the symptoms of hypersensitivity accompanied by frequent heart palpitations and nervous internal fluttering, which uses up nervous energy through overstimulation of the sympathetic nerves. The intestinal glands, the liver and pancreas, indeed most organs, will thereby be overstimulated. Even the perspiratory glands will be affected, and excessive perspiration can break out and weaken the body. Depression, characterised by mental imbalance and emotional ups and downs, is often the unpleasant consequence. This condition only deteriorates and becomes insupportable if massive doses of iodine are given.