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NUTRITION
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FASTING |
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When it comes
to vitamins, there are no set answers. Guidelines change with age,
diet, and general health. Here is some information to help you better
understand what vitamins can do for you.
WHAT
IS A VITAMIN?
A vitamin is
an organic substance necessary for everyday life. Unfortunately,
your body can not manufacture its own vitamins internally and therefore
requires supplements.
HOW
MUCH IS ENOUGH?
There are 13
vitamins necessary for body functions. You must get them from foods
or vitamin supplements. All vitamins are either fat-soluble or water-soluble.
Water-soluble vitamins are common in watery foods like fruits. Fat-soluble
vitamins are found in oily foods like meat or seeds. Fat-soluble
vitamins can be stored in human tissues. If over consumed, they
can build up to toxic levels. There are four fat-soluble vitamins:
A, D, E and K. Because they are capable of being stored, a person
does not need to consume them daily. Some vitamins like A, C, and
E are important antioxidants. Antioxidants prevent your cells from
being damaged by oxygen free radicals which are formed by stress
and pollution. Free radicals promote heart disease and cancer.
The Minimum
Daily Requirements (MDR) provide the smallest amount of nutrients
a person needs to consume to avoid deficiencies. The Recommended
Dietary Allowances (RDA) provides guidelines for specific groups
of people. Men are often larger than women and require more nutrients.
In addition, children often require different amounts for growing
bones. The biological effects of pregnancy and menopause can also
change a persons nutritional needs.
| Vitamin
A |
Needed
for eyesight , immune system function, and growth of bones.
Helps maintain healthy epithelial tissues which line surfaces
and cavities such as the skin. Helps bone growth and vision
by maintaining the cornea. Found in liver, egg yolks, milk,
and dark green or leafy vegetables. |
| Vitamin
B |
Needed
for nerve function, red blood cell formation. Promotes energy
into cells. (Thiamin, Riboflavin, Niacin, Pyridoxine, Folic
acid,and Cobalamin) |
| Vitamin
C |
Needed
to make collagen and provide antioxidant protection. |
| Vitamin
D |
Needed
to regulate calcium and phosphorus absorption for strong
bones. |
| Vitamin
E |
Needed
for antioxidant protection for cell membranes, for improving
immunity, and prevention of heart disease. |
| Vitamin
K |
Needed
for proper clotting of blood. |
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NUTRITION
Our ancestors
ate many whole foods that commonly fell from trees or grew from
the ground. Today we eat a large number of foods that have lost
through processing some of their natural constituents like fiber
and vitamins. In 1990, the government reacted to peoples growing
concern over nutrition. The Nutrition Education and Labeling Act
of 1990 required all food labels to list their ingredients in order
of decreasing weight. Nutritionists used to group food in four basic
categories: grains, meats, dairy and fruits or vegetables. Recently,
the food pyramid we often see on the side of cereal boxes divides
food into six basic groups. Grains compromise the base while fruits
and vegetables compromise the next tier. The pyramid recommends
six to eleven servings of grains, three to five servings of vegetables
and two to four fruits per day.
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CARBOHYDRATES
It is recommended
that 55-75% of our daily caloric intake stem from carbohydrates.
Carbohydrates are the nutrient from which all other nutrients are
derived. The basic carbohydrate is glucose. It can be rearranged
to form fructose or galactose. They contain the same number of carbon,
hydrogen and oxygen atoms, but their three-dimensional structures
differ.
Sucrose,(also
known as table sugar), is made of glucose and fructose. It is found
in many fruits and vegetables. There is a world of difference between
the sucrose found in fruits and vegetables and the sucrose found
in deserts and candy. Fruits and vegetables contain fiber, vitamins,
minerals and nutrients. Sweets contain little more than sugar.
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FIBER
Fiber itself
is indigestible, but that does not mean it is not helpful. Fiber
may bind with potentially cancer causing chemicals and speed their
removal from the body. Fibers are classified as soluble or insoluble.
Insoluble fiber is associated with the large intestine. It helps
prevent constipation, hemorrhoids and colon cancer. Soluble fiber
staves off hunger by slowing the absorption of glucose. It can lower
cholesterol levels as well.
American fixation
on weight has also created a market for sugar substitutes like Equal
and NutraSweet. These sweeteners are as caloric as sugar but two
hundred times sweeter. Hence minimal amounts are required. Saccharin
has been on the market the longest. It is found to be mildly carcinogenic
in rats. The Food and Drug Administration proposed banning it in
1977, but did not since no human cases have been linked to it. Saccharin
still exists on the market today, but a warning label now accompanies
it.
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FATS
Fats are the
most concentrated form of energy available to the body. Almost all
fats found in a persons diet are triglycerides. Saturated
fats are typically solid at room temperature. The majority of saturated
fats are found in meat and dairy products. Some products have fat
blended in while others are essentially all fat like butter. Unsaturated
fats are usually liquid at room temperature. They are usually extracted
from seeds.
Many people
consider fat a substance to be avoided at all costs. However, the
body needs fat. Fat provides protection for some of the bodys
organs by holding them in place and cushions any impact. Women usually
have an extra layer of fat under their skin which helps insulate
body temperature. Fat also aids in the absorption if fat-soluble
vitamins and minerals in the small intestine.
In theory, when
too few calories are eaten, the body should burn its stores of fat
and weight loss should occur. However, the central nervous system
can only burn carbohydrates. When carbohydrates are not available,
the body turns to protein stored in muscles and organs. This in
turn slows the metabolic rate.
The body is
capable of producing its own fat from excess carbohydrates and protein.
There are two types of fat the body needs but can not produce. These
fats are called essential fatty acids. Linolenic acid is an essential
fatty acid. It is found in cold water marine fish (like salmon).
It can also be found in seeds, grains, eggs and poultry.
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CHOLESTEROL
High cholesterol
levels are linked to heart disease. There are two types of cholesterol.
LDL is considered "bad" and HDL is considered "good."
LDL cholesterol is usually high in fat and can be deposited on artery
walls. On the other hand, HDL cholesterol is generated by aerobic
activities and protects the body from heart disease.
Cholesterol
levels are measured in milligrams(mg) per deciliter(dl), and total
levels below 200mg/dl are considered normal. A ratio of four LDL
to one HDL is considered normal but higher ratios are considered
a risk.
Three fat substitutes,
Olestra, Simplesse, and Z-trim have recently been developed which
strive to give the flavor and texture of fat without the fat itself.
Olestra has the texture of fat but is not absorbed in the body.
Unfortunately, side effects like abdominal cramping, loose bowel
movements, and malabsorption of vitamins A, D, E and K are associated
with Olestra.
Simplesse, unlike
Olestra, is digestible. Only a fraction of its calories comes from
fat. It is made of egg whites or milk and used in ice cream and
condiments. It can not be used for cooking.
Z-trim is created
from the hulls of grains. It adds fiber to the diet as well as reducing
the fat content. Z-trim is used for cooking. It is expected to be
used in commercial food preparations more often than in home cooking.
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ENZYMES
Enzymes are
proteins that speed up all biological and chemical reactions but
do not start these reactions. They require nutrient helpers as vitamins,
minerals and other proteins (co enzymes). Most enzymes come from
foods and need to be replenished. Every cell has 100.000 enzymes.
Enzymes break down every part of the food we eat (proteins, fats,
and sugars).
The most important enzymes come from the pancreas. If inadequate
supplies are present, foods will pass undigested. Enzymes in the
bowel have lactase to break down the sugar in milk and milk products.
If deficient in lactase there is as and bloating. If there is an
alpha galactodase deficiency there is gas and cramping after eating
beans, cabbage and cauliflower.
PANCREATIC ENZYMES are used to kill viruses by digesting their protein
coats. They also dissolve the coating of cancer cells so the white
blood cells and immune system can destroy the cancer.
Should a healthy
person take enzymes? Plant enzymes are found in raw vegetables,
nuts, and seeds. They act on the food in the stomach and help predigest
the food. (Acid in the stomach neutralizes the plant enzymes). However
if you only eat cooked food, you lose the benefit of predigestion.
Plant enzymes are deactivated by pasteurization, canning, micro
waving, and cooking above 118 degrees.
If the pancreas
must make more enzymes and cannot keep up, the colon becomes toxic
with wastes and toxins. These toxins get to the liver and the immune
system is disturbed. This results in infection, cancer, allergies,
or acne. The solution is to get some added enzymes from fresh uncooked
foods.
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FASTING
Many people
fast during Lent, Yom Kippur, and Ramadan. By resting the colon
detoxification can occur. This can help Rheumatoid arthritis and
allergies. Fewer toxins are consumed and the blood thins without
fat intake. Energy spent on digestion can now strengthen the immune
system. (Many feel that cancer patients should not be encouraged
to eat big meals.)
DANGERS OF PROLONGED FASTING: The blood sugar drops. Nitrogen by
products are raised and you may become weak and depressed. Long
fasts are dangerous as the uric acid rises predisposing to gout
and the kidneys can't excrete the toxins. Calcium, potassium, and
minerals fall and one can get cardiac arrhythmias, anemia, and headaches.
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