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Friday, November 9, 2007 - "Digestive
Disorders"
Segment
1 - Nutrition in the News - Aging Gracefully
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- Zeaxanthin = has been shown to reduce the risk of age-related macular degeneration
(AMD) â the leading cause of blindness in people over the age of 50.
- Lutein = other carotenoid that's also shown to play a key role in AMD prevention.
Leafy green vegetables are the best sources of lutein, while zeaxanthin
is most plentiful in yellow corn, orange pepper, squash, mango, honeydew,
broccoli, and egg yolks.
- Lycopene (which gives tomatoes, watermelons and pink grapefruit
their red color) is well known mostly due to studies that have shown
this carotenoid to offer protection against breast, prostate, and pancreatic
cancers, as well as heart disease.
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- USDA
study (5 yrs. ago) revealed that three cups of diced watermelon, taken daily,
may result in blood
serum lycopene and beta-carotene concentrations that are five times
higher than in people who don't get a good intake of fresh fruits
and vegetables. Or put some heat under a tomato. Studies have shown
that
the body absorbs lycopene from tomatoes more efficiently when tomato
dishes are heated.
- Some
studies have also suggested that eating cooked tomatoes along with
a source of fat â such as cheese or meat â may improve lycopene absorption
as well.
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Segment
2 - Debunking the Myth - You Can Never Drink Too Much Water
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This of course is a myth. Too much can kill you, even a gallon of water a day
is too much, the old 8- 8 oz. treatment works.
- Human beings are made up of around 75 per cent water. Two thirds of our bodily
water is found inside our cells, with the rest between the cells and
in our blood.
- Water provides the medium in which all the body's chemical
reactions take place and the solution in which foodstuffs are dissolved
and transported. It helps regulate our body temperature through sweating.
- A 2 percent loss in the water surrounding our cells can result
in a 20 per cent drop in energy levels. That's how important water is
for us.
- Water is the most vital requirement for human life. While
our bodies can survive without food for around three weeks, without water
we can only live for three days.
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- Dr
Keith Barnard, GP, says, "The body tries desperately hard to retain
water if there is no intake, so hardly any urine is passed. If
a person is in a normal temperature and not exposed to the wind they
could probably
last longer than three days - maybe as long as a week."
- On
average, your body loses 1-1.5 litres of water a day. If someone is
undertaking a lot of activity, and therefore breathing and sweating
more, they would lose more.
- Dr
Barnard says: âIt is not essential to always drink a set amount regardless
of circumstances. The body is very good at regulating water. If you
drink too much, your body will get rid of the excess, so you will pass
urine more often and it will look almost clear. If you don't drink
enough, your body will save water by concentrating your urine, which
will look darker, and your brain will tell you that you need more water
by making you feel thirsty.â
- Another
thing to keep in mind is that water is found in fruits, vegetables,
milk and juices. Water from these sources will go some way to meeting
your daily requirements, so people do not need to drink a full eight
glasses of water on top of this
- Macrobiotic
cook and teacher Bob Lloyd says, "The type of foods we [people following
a macrobiotic diet] eat contain a lot of water and are less dehydrating,
therefore there is less need to drink."
- A
reasonable water intake can help with weight loss. We need around half
a cup of water for every 100 calories we burn.
- Dr
Roger Henderson, GP, explains, âDrinking before eating may help you
lose weight because the brain can generate energy from water and
food. When water is used instead of food then none is stored as fat
- as
is the case with unused food - and excess water passes out of the
body with no weight gain.âThe
minimum figures for the body's daily water loss are 500ml through urine
and 700ml through breathing and sweating.Doctors advise that to be
on the safe side we should drink at least 1.2 litres of liquids (2.5
pints).
Bottom Line: So, remember, although water is essential, you don't need to
become obsessed about drinking eight glasses a day.
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Segment
3 - Let's Talk Digestion with Dr. Zepeda
Shirley: Can
you take us through the complete digestive process?
Dr.
Zepeda: Digestion
begins with the chewing and breaking up of food. Once the food
is masticated,
it goes into the esophagus
which carries the food to the stomach.
The stomach is a reservoir to churn the food so that
the food goes from the top part of the stomach to the lower part
of the stomach and then back up, but only a very few particles goes
to the small bowel for absorption.
Shirley: And then the food goes to the large intestine?
Dr. Zepeda: Correct. Digestion can be broken down into carbohydrate
digestion, protein digestion and fat digestion. Carbohydrate digestion
is mainly the beginning portion of the small bowel. The fat digestion
is mainly the very end of the small bowel, whereas protein is mainly
upper to mid small bowel.
Joe: Doctor, can you explain what enzymes are and
what they do?
Dr. Zepeda: Enzymes are catalysts and they are chemicals
that help breakdown food.
The pancreas excretes several enzymes⦠protease for
proteins, amylase for carbohydrates and lipase for digesting fat.
Shirley: There are several diseases linked to digestion.
Could we talk about some of these? For instance, Crohnâs Diseaseâ¦
what is Crohnâs disease?
Dr. Zepeda: Crohnâs disease is a disease that affects the
small bowel. We donât necessarily have an explanation as to why people
get it. There are some potential genetic pre-dispositions.
The symptoms range from diarrhea, bleeding and weight-loss
but also we see arthritis, rashes and other non-gastrointestinal
symptoms.
Joe: What has now become a household word is Diverticulitis.
Tell us more about this.
Dr. Zepeda:The intestine itself is a hollow tube and along
that tube there are muscles that are not a complete sheath of muscles
and therefore wherever along the intestinal wall that there is no
muscle, it is weak or known as a diverticuli.
Sometimes fecal matter will get caught in these diverticuli
and cause damage and pain.
Shirley: What about Irritable Bowel Syndrome?
Dr. Zepeda: Very, very common. People will experience diarrhea
alternating with constipation and perhaps serious abdominal pain.
Shirley: What causes it?
Dr.
Zepeda: No clear explanation for IBS. We try and avoid
medical treatment and instead encourage high-fiber diets and to avoid
stress.
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Segment
4 - Healthy Cooking- Peg's Pumpkin Bread
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2 2/3 cups organic, unbleached sugar,
2/3 cup butter
1 16 oz. can pumpkin
2/3 cup water
4 brown free range eggs
2 cups unbleached flour
1 1/3 cup whole wheat flour
2t baking soda
1 1/2 t sea salt
1t ground cinnamon
1 t ground cloves
1/2 t baking powder
Heat of to 350 degrees. Grease 2 loaf pans 9x5x3. Mix all ingredients in order.
Pour into pans. Bake until wooden pick inserted in center comes out clean,
60 to 70 minutes.
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Segment
5 - How to Buy Hamburgers-
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- The problem with hamburgers is that man has so altered the cow by feeding it
grain instead of grass, by giving it chemicals to grow faster, by injecting
an untold number of chemicals into the soil that the cowâs food comes from
that commercial ground beef can be very unhealthy. There are alternatives
to commercial ground beef however.
- Grass Fed Beef is a good alternative because the cow is eating what God intended
it to eat and that is grass. Also, the grass that the cow is eating is
not treated with chemicals or insecticides.
- Bison is another good alternative. Most people donât know
this about bison, but it has less fat and cholesterol than skinless chicken
breasts. Ground bison tastes fantastic.
- There are some practical ways to make hamburgers less fatteningâ¦
- Consider eating your hamburger on an open-faced bun. This
will reduce 50% of the calories from bread.
- Another practical way to reduce calories is to not have cheese
and to replace the mayonnaise with mustard or even ketchup. This could
eliminate almost 300 calories from the hamburger.
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Segment
6 - Healthy Habit - Always Eat Your Sandwich Open-Faced
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- When
you eat a sandwich open-faced, especially a cooked sandwich, you reduce
a good number of the calories and especially the starchy calories.
- Another healthy byproduct of eating an open-faced sandwich is that it usually
requires you to cut each bite. When you are cutting each bite you are
chewing the previous bite longer, thus getting more enzyme activity
promoting better digestion.
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