| What
is diabetes?
Diabetes is a disease in which blood glucose
levels are above normal. Most of the food
we eat is turned into glucose, or sugar,
for our bodies to use for energy. The pancreas,
an organ that lies near the stomach, makes
a hormone called insulin to help glucose
get into the cells of our bodies. When you
have diabetes, your body either doesn't
make enough insulin or can't use its own
insulin as well as it should. This causes
sugar to build up in your blood.
What are the symptoms of diabetes?
People who think they might have diabetes
must visit a physician for diagnosis. They
might have SOME or NONE of the following
symptom
• Frequent urination •
Excessive thirst • Unexplained
weight loss • Extreme hunger
• Sudden vision changes
• Tingling or numbness in hands
or feet • Feeling very tired
much of the time • Very dry
skin • Sores that are slow
to heal • More infections
than usual |
Nausea, vomiting, or stomach pains may accompany
some of these symptoms in the abrupt onset
of insulin-dependent diabetes, now called
type 1 diabetes.
Why does losing
weight help my diabetes?
Weight loss helps people with diabetes in
two important ways. First, it lowers insulin
resistance. This allows your natural insulin
(in people with type 2 diabetes) to do a better
job lowering blood glucose levels. If you
take insulin or a sulfonylurea, losing weight
may allow you to quit taking it. Second, it
improves blood fat and blood pressure levels.
People with diabetes are about twice as likely
to get cardiovascular disease as most people.
Lowering blood fats and blood pressure is
a way to reduce that risk.
Can I eat foods with sugar in them?
For almost every person with diabetes,
the answer is yes! Eating a piece of cake
made with sugar will raise your blood glucose
level. So will eating corn on the cob, a
tomato sandwich, or lima beans.
The truth is that sugar has gotten a bad
reputation. People with diabetes can and
do eat sugar. In your body, it becomes glucose,
but so do the other foods mentioned above.
With sugary foods, the rule is moderation.
Eat too much, and:
1. You'll send your blood glucose
level up higher than you expected.
2. You'll fill up but without the nutrients
that come with vegetables and grains.
3. You'll gain weight. |
Are Low-Carbohydrate
Diets the answer for weight loss?
Popular diets question carbohydrates in a
healthful eating plan. You thought they were
good for you. What are the facts? Carbohydrates
yield readily available glucose and are the
best fuel for the body. Skipping carbohydrates
is like trying to drive your car with oil
instead of gas.
The facts for weight loss are very simple
and not too glamorous. Weight loss occurs
when you burn more calories than you consume.
You can change calories in one of three
ways--eat fewer calories, exercise more,
or do a little of both.
For more assistance with healthy eating
and for more information about the risks
involved with low carbohydrate diets speak
with a registered dietitian.
What happens when I eat food?
Your blood glucose levels after a meal are
most affected by the amount of carbs in
your diet and the amount of insulin secretion
and its action on your tissues.
The nutrient that has the greatest effect
on blood glucose is carbohydrates. Fat slows
glucose absorption. Both, the quantity and
the type or source of carbs of the food
you eat, influence your glucose levels after
having a meal.
What are the
glycemic index and glycemic load?
Glycemic index and the glycemic load are
two good tools for meal planning when you
are diabetic.
- The glycemic
index measures the change in blood
glucose concentrations after eating foods
that contain carbs. Some foods cause a very
rapid increase in glucose levels while others
have smaller effects. The glycemic index
ranks foods containing carbs comparing them
according to the increase in blood glucose
(over the fasting level) that is observed
in the 2 hours after eating a certain amount
of carbs in an individual food.
- The glycemic
load of a food takes into account
the glycemic index of a specific food as
well as the amount of carbs in a serving
of that food. In summary, the glycemic index
is a qualitative measure and the glycemic
load is a quantitative one.
Access this tool
to calculate the glycemic index and glycemic
load of the foods at the website of
University of Sidney. They also have great
books with recipes and information.
What is Insulin?
- Insulin is a hormone needed to sustain
life since it is necessary for converting
blood glucose into energy and for the cellular
metabolism of many other nutrients.
Insulin is a hormone produced by the beta
cells in the pancreas that allows glucose
from the food we eat to get into our cells
for energy. Insulin is necessary for life.
Without insulin action, glucose and other
nutrients from food cannot be used properly
and glucose levels rise in the blood.
- Because food intake affects the body's
need for insulin and insulin's ability to
lower blood sugar, diet is the cornerstone
of diabetes treatment. Today, diabetes experts
no longer recommend a single meal plan for
all people with diabetes. Instead, they
recommend meal plans that are flexible and
take into account a person's lifestyle and
particular health needs. The American Diabetes
Association recommends that people with
diabetes consult a registered dietician
to design a meal plan.
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