A colourless, ?ammable gas occasionally used as an inhalant anaesthetic.
Nutritional Profile Energy value (calories per serving): Moderate Protein: Low Fat: Low Saturated fat: Low Cholesterol: None Carbohydrates: High Fiber: Moderate Sodium: Low Major vitamin contribution: B vitamins, vitamin C Major mineral contribution: Potassium, magnesium
About the Nutrients in This Food A banana begins life with more starch than sugar, but as the fruit ripens its starches turn to sugar, which is why ripe bananas taste so much better than unripe ones.* The color of a banana’s skin is a fair guide to its starch/ sugar ratio. When the skin is yellow-green, 40 percent of its carbohydrates are starch; when the skin is fully yellow and the banana is ripe, only 8 per- cent of the carbohydrates are still starch. The rest (91 percent) have broken down into sugars—glucose, fructose, sucrose, the most plentiful sugar in the fruit. Its high sugar content makes the banana, in its self-contained packet, a handy energy source. Bananas are a high-fiber food with insoluble cellulose and lignin in the tiny seeds and soluble pectins in the flesh. They are also a good source of vitamin C and potassium. One small (six-inch) banana or a half-cup of sliced banana has 2.6 g dietary fiber and 8.8 mg vitamin C (12 percent of the R DA for a woman, 10 percent of the R DA for a man), plus 363 mg potassium.
The Most Nutritious Way to Serve This Food Fresh and ripe. Green bananas contain antinutrients, proteins that inhibit the actions of amylase, an enzyme that makes it possible for us to digest * They are also more healt hful. Green bananas contain proteins t hat inhibit amy- lase, an enzyme t hat makes it possible for us to digest complex carbohydrates. starch and other complex carbohydrates. Raw bananas are richer in potassium than cooked bananas; heating depletes potassium.
Buying This Food Look for: Bananas that will be good when you plan to eat them. Bananas with brown specks on the skin are ripe enough to eat immediately. Bananas with creamy yellow skin will be ready in a day or two. Bananas with mostly yellow skin and a touch of green at either end can be ripened at home and used in two or three days. Avoid: Overripe bananas whose skin has turned brown or split open. A grayish yellow skin means that the fruit has been damaged by cold storage. Bananas with soft spots under the skin may be rotten.
Storing This Food Store bananas that aren’t fully ripe at room temperature for a day or two. Like avocados, bananas are picked green, shipped hard to protect them from damage en route and then sprayed with ethylene gas to ripen them quickly. Untreated bananas release ethylene natu- rally to ripen the fruit and turn its starches to sugar, but natural ripening takes time. Artificial ripening happens so quickly that there is no time for the starches to turn into sugar. The bananas look ripe but they may taste bland and starchy. A few days at room temperature will give the starches a chance to change into sugars. Store ripe bananas in the refrigerator. The cold air will slow (but not stop) the natural enzyme action that ripens and eventually rots the fruit if you leave it at room temperature. Cold storage will darken the banana’s skin, since the chill damages cells in the peel and releases polyphenoloxidase, an enzyme that converts phenols in the banana peel to dark brown compounds, but the fruit inside will remain pale and tasty for several days.
Preparing This Food Do not slice or peel bananas until you are ready to use them. When you cut into the fruit, you tear its cell walls, releasing polyphenoloxidase, an enzyme that hastens the oxidation of phenols in the banana, producing brown pigments that darken the fruit. (Chilling a banana produces the same reaction because the cold damages cells in the banana peel.) You can slow the browning (but not stop it completely) by dipping raw sliced or peeled bananas into a solution of lemon juice or vinegar and water or by mixing the slices with citrus fruits in a fruit salad. Overripe, discolored bananas can be used in baking, where the color doesn’t matter and their intense sweetness is an asset.
What Happens When You Cook This Food When bananas are broiled or fried, they are cooked so quickly that there is very little change in color or texture. Even so, they will probably taste sweeter and have a more intense aroma than uncooked bananas. Heat liberates the volatile molecules that make the fruit taste and smell good.
How Other Kinds of Processing Affect This Food Drying. Drying removes water and concentrates the nutrients and calories in bananas. Bananas may be treated with compounds such as sulfur dioxide to inhibit polyphenoloxi- dase and keep the bananas from browning as they dry. People who are sensitive to sulfites may suffer severe allergic reactions, including anaphylactic shock, if they eat these treated bananas. Freezing. Fresh bananas freeze well but will brown if you try to thaw them at room tem- perature. To protect the creamy color, thaw frozen bananas in the refrigerator and use as quickly as possible.
Medical Uses and/or Benefits Lower risk of stroke. Various nutrition studies have attested to the power of adequate potassium to keep blood pressure within safe levels. For example, in the 1990s, data from the long-running Harvard School of Public Health/Health Professionals Follow-Up Study of male doctors showed that a diet rich in high-potassium foods such as bananas, oranges, and plantain may reduce the risk of stroke. In the study, the men who ate the higher number of potassium-rich foods (an average of nine servings a day) had a risk of stroke 38 percent lower than that of men who consumed fewer than four servings a day. In 2008, a similar survey at the Queen’s Medical Center (Honolulu) showed a similar protective effect among men and women using diuretic drugs (medicines that increase urination and thus the loss of potassium). Improved mood. Bananas and plantains are both rich in serotonin, dopamine, and other natural mood-elevating neurotransmitters—natural chemicals that facilitate the transmis- sion of impulses along nerve cells. Potassium benefits. Because potassium is excreted in urine, potassium-rich foods are often recommended for people taking diuretics. In addition, a diet rich in potassium (from food) is associated with a lower risk of stroke. A 1998 Harvard School of Public Health analysis of data from the long-running Health Professionals Study shows 38 percent fewer strokes among men who ate nine servings of high potassium foods a day vs. those who ate less than four servings. Among men with high blood pressure, taking a daily 1,000 mg potas- sium supplement—about the amount of potassium in one banana—reduced the incidence of stroke by 60 percent.
Adverse Effects Associated with This Food Digestive Problems. Unripe bananas contain proteins that inhibit the actions of amylase, an enzyme required to digest starch and other complex carbohydrates. Sulfite allergies. See How other kinds of processing affect this food. Latex-fruit syndrome. Latex is a milky fluid obtained from the rubber tree and used to make medical and surgical products such as condoms and protective latex gloves, as well as rub- ber bands, balloons, and toys; elastic used in clothing; pacifiers and baby bottle-nipples; chewing gum; and various adhesives. Some of the proteins in latex are allergenic, known to cause reactions ranging from mild to potentially life-threatening. Some of the proteins found naturally in latex also occur naturally in foods from plants such as avocados, bananas, chestnuts, kiwi fruit, tomatoes, and food and diet sodas sweetened with aspartame. Persons sensitive to these foods are likely to be sensitive to latex as well. NOTE : The National Insti- tute of Health Sciences, in Japan, also lists the following foods as suspect: Almonds, apples, apricots, bamboo shoots, bell peppers, buckwheat, cantaloupe, carrots, celery, cherries, chestnuts, coconut, figs, grapefruit, lettuce, loquat, mangoes, mushrooms, mustard, nectar- ines, oranges, passion fruit, papaya, peaches, peanuts, peppermint, pineapples, potatoes, soybeans, strawberries, walnuts, and watermelon.
Food/Drug Interactions Monoamine oxidase (MAO) inhibitors. Monoamine oxidase inhibitors are drugs used to treat depression. They inactivate naturally occurring enzymes in your body that metabolize tyra- mine, a substance found in many fermented or aged foods. Tyramine constricts blood vessels and increases blood pressure. If you eat a food containing tyramine while you are taking an M AO inhibitor, you cannot effectively eliminate the tyramine from your body. The result may be a hypertensive crisis. There have been some reports in the past of such reactions in people who have eaten rotten bananas or bananas stewed with the peel. False-positive test for tumors. Carcinoid tumors—which may arise from tissues of the endo- crine system, the intestines, or the lungs—secrete serotonin, a natural chemical that makes blood vessels expand or contract. Because serotonin is excreted in urine, these tumors are diagnosed by measuring the levels of serotonin by-products in the urine. Bananas contain large amounts of serotonin; eating them in the three days before a test for an endocrine tumor might produce a false-positive result, suggesting that you have the tumor when in fact you don’t. (Other foods high in serotonin are avocados, eggplant, pineapple, plums, tomatoes, and walnuts.)... bananas
Nutritional Profile Energy value (calories per serving): Low Protein: Moderate Fat: Low Saturated fat: Low Cholesterol: None Carbohydrates: High Fiber: High Sodium: Moderate Major vitamin contribution: Vitamin A Major mineral contribution: Potassium
About the Nutrients in This Food Carrots are high-fiber food, roots whose crispness comes from cell walls stiffened with the insoluble dietary fibers cellulose and lignin. Carrots also contain soluble pectins, plus appreciable amounts of sugar (mostly sucrose) and a little starch. They are an extraordinary source of vitamin A derived from deep yellow carotenoids (including beta-carotene). One raw carrot, about seven inches long, has two grams of dietary fiber and 20,250 IU vitamin A (nine times the R DA for a woman, seven times the R DA for a man).
The Most Nutritious Way to Serve This Food Cooked, so that the cellulose- and hemicellulose-stiffened cell walls of the carrot have partially dissolved and the nutrients inside are more readily available.
Diets That May Restrict or Exclude This Food Disaccharide-intolerance diet (for people who are sucrase- and /or invertase-deficient) Low-fiber diet Low-sodium diet (fresh and canned carrots)
Buying This Food Look for: Firm, bright orange yellow carrots with fresh, crisp green tops. Avoid: Wilted or shriveled carrots, pale carrots, or carrots with brown spots on the skin.
Storing This Food Trim off the green tops before you store carrots. The leaf y tops will wilt and rot long before the sturdy root. Keep carrots cool. They will actually gain vitamin A during their first five months in storage. Protected from heat and light, they can hold to their vitamins at least another two and a half months. Store carrots in perforated plastic bags or containers. Circulating air prevents the for- mation of the terpenoids that make the carrots taste bitter. Do not store carrots near apples or other fruits that manufacture ethylene gas as they continue to ripen; this gas encourages the development of terpenoids. Store peeled carrots in ice water in the refrigerator to keep them crisp for as long as 48 hours.
Preparing This Food Scrape the carrots. Ver y young, tender carrots can be cleaned by scrubbing with a veg- etable brush. Soak carrots that are slightly limp in ice water to firm them up. Don’t discard slightly wilted intact carrots; use them in soups or stews where texture doesn’t matter.
What Happens When You Cook This Food Since carotenes do not dissolve in water and are not affected by the normal heat of cooking, carrots stay yellow and retain their vitamin A when you heat them. But cooking will dissolve some of the hemicellulose in the carrot’s stiff cell walls, changing the vegetable’s texture and making it easier for digestive juices to penetrate the cells and reach the nutrients inside.
How Other Kinds of Processing Affect This Food Freezing. The characteristic crunchy texture of fresh carrots depends on the integrity of its cellulose- and hemicellulose-stiffened cell walls. Freezing cooked carrots creates ice crystals that rupture these membranes so that the carrots usually seem mushy when defrosted. If possible, remove the carrots before freezing a soup or stew and add fresh or canned carrots when you defrost the dish.
Medical Uses and/or Benefits A reduced risk of some kinds of cancer. According to the American Cancer Society, carrots and other foods rich in beta-carotene, a deep yellow pigment that your body converts to a form of vitamin A, may lower the risk of cancers of the larynx, esophagus and lungs. There is no such benefit from beta-carotene supplements; indeed, one controversial study actually showed a higher rate of lung cancer among smokers taking the supplement. Protection against vitamin A-deficiency blindness. In the body, the vitamin A from carrots becomes 11-cis retinol, the essential element in rhodopsin, a protein found in the rods (the cells inside your eyes that let you see in dim light). R hodopsin absorbs light, triggering the chain of chemical reactions known as vision. One raw carrot a day provides more than enough vitamin A to maintain vision in a normal healthy adult.
Adverse Effects Associated with This Food Oddly pigmented skin. The carotenoids in carrots are fat-soluble. If you eat large amounts of carrots day after day, these carotenoids will be stored in your fatty tissues, including the fat just under your skin, and eventually your skin will look yellow. If you eat large amounts of carrots and large amounts of tomatoes (which contain the red pigment lycopene), your skin may be tinted orange. This effect has been seen in people who ate two cups of carrots and two tomatoes a day for several months; when the excessive amounts of these vegetables were eliminated from the diet, skin color returned to normal. False-positive test for occult blood in the stool. The active ingredient in the guaiac slide test for hidden blood in feces is alphaguaiaconic acid, a chemical that turns blue in the presence of blood. Carrots contain peroxidase, a natural chemical that also turns alphaguaiaconic acid blue and may produce a positive test in people who do not actually have blood in the stool.... carrots
Chelation is increasingly used as an alternative to by-pass surgery for coronary disease, significantly improving the coronary circulation. Reportedly of value for improved kidney function, decreased insulin requirement for diabetes, to reduce prostate obstruction, restore near-normal breathing pattern in emphysema and to bring relief in arthritis. Specific herbs act as bonding agents to metals in blood vessel plague prior to expulsion via the kidneys and bowel.
Conventional medical chelation therapy consists of an intravenous drip of a synthetic amino acid, EDTA (ethylene diamine tetra-acetic acid) which leeches from the tissues toxic metals (lead, mercury etc) prior to elimination. Cholesterol and fats are dissolved and metabolised by the liver, and metals are excreted by the kidneys.
Supportive aid to primary treatment. Combine tinctures: Hawthorn 2; Lily of the Valley 1; Capsicum quarter. Dose: 15-60 drops in water thrice daily.
Saponin-containing herbs, by their detergent action act as binding agents to leech metals, plague etc from blood vessels and the intestinal canal.
Diet. Guar gum preparations. Low salt. Fish oils or oily fish.
Supplements. Vitamins A, C, D (Cod Liver oil), B-complex, especially Vitamin B12, biotin, PABA, chromium, selenium, zinc, methionine, superoxide dismutase, magnesium.
Information. The Arterial Disease Clinic: tel: 0942 676617. ... chelation
Drinking antifreeze initially produces effects similar to alcohol intoxication, but vomiting, stupor, seizures, and coma may follow; acute kidney failure may occur within 24–36 hours.
Antifreeze poisoning requires immediate medical attention.... antifreeze poisoning
EDTA (ethylenediaminetetraacetic acid) see edetate.... edrophonium
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