Excess salt intake can also severely upset the body's water balance. Along with potassium, which also occurs naturally in fresh foods, the sodium in foods and in salt itself (which is sodium chloride) plays an important part in the movement of electrons through the body's water- based protoplasm. This is why sodium and potassium are known as electrolytes. Potassium tends to concentrate in the cells, sodium in the fluids outside the cells. The balance between sodium and potassium, when it is right, sets up a dynamic tension that makes it possible for the living cells to react quickly and efficiently to nerve stimuli, to exchange nutrients and wastes easily through the cell wall, and to maintain the proper interior and extracellular water balance. Too much sodium, which most of us get from eating salt, upsets this balance altogether and can cause troubles. It forces the body to hold on to extra amounts of water to make up for the extra salt one has eaten. Tissues become bloated, and this salt-caused edema can interfere with the blood's oxygen transfer to cells as well as creating extra pressure against the blood vessel walls themselves. These are some of the reasons the Lifestyle Diet eliminates salt both in cooking and at the table. It relies instead on fresh and dried herbs, garlic, and spices for seasoning.
Throw out the Coffee
Caffeine, a trimethylated xanthine, is found in coffee beans, tea leaves, cola nuts, and cacao, from which chocolate is made. Together with nicotine and alcohol, it makes up a trio of the most widely used psychoactive drugs in the world. The xanthines are stimulants to the central nervous system. They increase heartbeat rate, increase the volume and concentration of acid in the stomach, relax the smooth muscles in the body, raise blood lipids, stimulate the cerebral cortex (which means they heighten the intensity of mental processes), banishing drowsiness and feelings of fatigue. Caffeine and alcohol also have a diuretic effect on the system, causing frequent urination.
The average cup of coffee contains between 100 and 150 milligrams of caffeine per cup, instant coffee somewhat less, tea between 60 and 75 milligrams, cola drinks between 50 and 60 milligrams. This means that if you are drinking four or five cups of coffee each day you are getting a dose of 700 to 750 milligrams of caffeine. To any pharmacologist a dose over 250 milligrams is considered large, although about a third of people in the West get twice as much each day and one person in ten actually imbibes more than 1,000 milligrams of the drug caffeine every twenty- four hours. The full long-term implications of drinking coffee (and, to a lesser degree, tea and cola drinks) are still not clear. However, enough is known already to inspire any woman concerned about the preservation of her health and beauty to give them up completely. For caffeine is a stimulus you do not need on a healthful low protein, low-fat diet high in unrefined carbohydrates.
The link between caffeine intake and anxiety symptoms has been well established. Dr. John Greded, associate professor of psychiatry at theUniversity of Michigan, and his colleagues and others have reported that high caffeine consumers have statistically significant elevations in anxiety scores. The risk of developing peptic ulcers is also 1.4 times greater among coffee drinkers than among non-coffee drinkers. There is now evidence that coffee consumption by pregnant women can be dangerous to the unborn child Caffeine has been shown to cross the placental barrier where its mutagenic and perhaps even teratogenic potential may cause genetic changes and, therefore, birth defects.
Finally, a daily intake of caffeine from coffee drinking is the same as continuing to supply your system with any other drug to which it has to adjust and which ultimately it has to detoxify and eliminate. One of the main principles of any long-term diet for health and beauty is, never add to the body anything which is not necessary and with which it has to deal. The fewer toxic substances there are, the less contribution they will make to tissue sludge, premature aging of skin, and the subclinical vitamin and mineral deficiencies which result in falling hair, breaking fingernails, chronic fatigue, and mental disorders. In the Lifestyle Diet, coffee, tea, cola drinks (even those without sugar), and cocoa are out. Instead, you can drink mineral waters, herb teas (but always in moderation since some of them in excess may not be good for you either), fresh fruit and vegetable juices, and coffee substitutes made from roots and grains.