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MoonDragon's Alternative Health Information
Healthy Eating
Just as filling a car with good fuel makes it run smoothly and efficiently, fueling our bodies with the kind of food that provides optimum nutrition is one of the best ways to achieve good health. In fact, scientists are discovering that certain foods actually protect against disease. Carrots and broccoli, for example, contain beta-carotene, which appears to be able to help the immune system destroy cancer cells. Healthy eating, however, also means eating less of the foods that are bad for us and avoiding foods that might contain harmful additives and pesticides.
A nutritious salad does not have to be dull and boring. Remember, eating should be a pleasure.
Fad diets, based on extreme quantities or combinations of food, should be treated with caution and followed only under expert advice. It is surprisingly easy to miss out on essential nutrients and damage your health through malnutrition.
NUTRITIONAL SUPPLEMENTS
Ideally, eating a sensible well-balanced diet would mean we had no need for nutritional supplements, but there is growing evidence that the mass-processing of food may destroy some vitamins and minerals. Supplements can sometimes be beneficial; for example, additional folic acid for pregnant women can dramatically reduce the occurance of spina bifida and other birth defects. Extra selenium, a mineral that helps prevent cancer and which may be at dangerously low levels in the Western diet, could also be worthwhile. However, care should be taken with vitamin and mineral supplements. Excess vitamin A, B6, and iron, for example, can cause health problems and increasingly it appears that benefits lie in the way food components work together, rather than in individual vitamins and minerals.
GUIDELINES FOR OPTIMUM NUTRITION
Most dietitians and nutritionists agree on certain guidelines for optimum nutrition. Many of these are based on traditional eating habits of people in southern Italy and Greece, areas with a history of low rates of long-term disease and high life expectency.
- Make a third of your daily diet starchy complex carbohydrates such as bread, pasta, rice, potatoes, and whole grains.
- Eat at least seven portions a day of fruits and vegetables, preferably organically grown.
- Obtain protein from poultry, fish, legumes, cereal, and low-fat dairy products, rather than red meat.
- Use skim milk and low-fat dairy products instead of full-fat dairy foods.
- Eat oily fish for essential fatty acids.
- Use olive oil or other mono-saturated oils for salads and cooking.
- Eat plenty of foods high in fiber.
- Steam vegetables rather than frying or boiling.
- Drink fruit juices and enough water to keep your urine pale in color.
DIETARY FIBER
Dietary fiber is made up of a complex group of substances, and although largely composed of carbohydrates, it is not broken down by the body for energy. Fiber is found only in plant foods and, because it is resistant to digestive enzymes, passes through the intestinal tract without being absorbed, helping to soften and increase the bulk of the stool. Insoluable fiber (found in rice, nuts, wheat bran, whole grains, and dried fruits) speeds the passage of food through the intestines and may help prevent the buildup of carcinogens that could cause cancer of the colon. Water-soluable fiber (found in oat bran, legumes, fruits, and vegetables) lowers blood cholesterol levels and inhibits the absorption of glucose into the bloodstream, preventing a sudden rise in blood sugar, which is particularly important for diabetics.
Foods high in fiber, such as rice, nuts, legumes, and whole grains, prevent constipation, help lower blood cholesterol, and protect against bowel disease.
Pesticides are used to prevent damage to crops, especially when large quantities of attractive produce bring huge profits. ADDITIVES & PESTICIDES
Not all additives are bad, some are necessary to keep food safe from fungi and bacteria and to prevent it from spoiling. Ascorbic acid (vitamin C), for example, is used to prevent fruit juices from turning brown and to prevent fatty foods from going rancid. Other natural and synthetic additives are used to color and flavor food. However, some additives do have potential side effects, which can vary from vomiting to asthma or behavioral problems. Nitrites and nitrates used to preserve processed meats and smoked fish may convert to potentially carcinogenic nitrosamines, and their intake should be limited. Pickled foods are also said to contribute to cancer. There is also concern that toxins can enter the body via food, damaging cells and causing illness. Fruits and vegetables may harbor traces of pesticides, antibiotics and growth hormones are given to livestock and farmed fish to protect and fatten them; and fish and shellfish from polluted waters may contain unacceptable concentrations of heavy metals, such as mercury, cadmium, and lead.
Try to reduce the threat to your health by choosing organically grown fruits and vegetables that have not been sprayed with pesticides, and organically farmed meat and eggs. Remember that large fish from the top of the food chain, such as swordfish and pike, are most likely to accumulate excessive toxic metals.
FOODS TO LIMIT OR REPLACE
There is a general consensus among experts that certain types of foods should be limited or replaced.
- Keep the number of calories obtained from fat at or below 30% of your daily total intake of calories.
- Limit the intake of red meat and cheeses, which are high in saturated fats.
- Limit saturated-fat intake to less than 10% of total fat calories.
- Replace butter with a low-fat spread or soft margarine, high in polyunsaturated fats and low in transfats, and spread it lightly.
- Avoid junk and processed foods loaded with preservatives, colorings, and flavorings.
- Limit sugar intake so that blood sugar levels remain even.
- Limit salt intake - avoid adding salt to meals and eating salty foods, such as potato chips and processed meats.
- Reduce caffeine intake by limiting tea, coffee, cola drinks, and chocolate. Drink herbal teas and water instead.
- Limit alcohol intake, although drinking one glass of red wine a day may lower the risk of heart disease.
Plums and blackberries are good sources of antioxidants, which can help protect against heart disease and cancer. ANTIOXIDANTS
Exciting research since the late 1980s has highlighted the role of antioxidants in protecting against cancer, heart disease, premature aging, and other health problems. Antioxidants work by seeking out and deactivating free radicals, which are molecules produced by the body as part of its defense against bacteria. In the few seconds that free radicals exist, they can damage DNA and affect cholesterol so that it "furs up" arteries. Chemicals, cigarette smoke, and industrial pollution can also increase free-radical levels. The body produces some antioxidants but we need to obtain more from our diet.
The main antioxidant nutrients are vitamins A (as beta-carotene), C, and E, and the minerals selenium, zinc, manganese, and copper. Bioflavonoids, found in some fruits and vegetables, including blackberries, black currants, lemons, plums, and cherries, also have antioxidant properties. Carotenoids, which are substances similar to beta-carotene, can help protect against damage by environmental toxins. They are found in tomatoes, spinach, broccoli, turnips, brussels sprouts, red peppers, garlic, onions, yogurt, and wheat germ.
A midday meal of complex carbohydrates and protein, such as fish with whole wheat pasta or whole wheat bread, can help avert the after-lunch energy stump. A heavy meal containing saturated fats may cause sleepiness. MOOD FOODS
The stimulating effects of caffeine are well known, but other foods can also affect mood. Chocolate contains chemicals and stimulants that can lift the spirits. High-protein foods, such as meat, milk, and eggs, can produce feelings of calm because they contain an amino acid, tryptophan, that produces serotonin, a mood-enhancing neurotransmitter. Starchy and sugary carbohydrate-rich foods also increase blood sugar and are thought to raise serotonin levels. Low levels of serotonin may be linked to depression and hostility, and low blood sugar to irritability, depression, and mood swings.
MoonDragon's Alternative Health Information Index
