A Great Healthy Heart Diet Secret
Did you know that not all carbohydrate foods are created equal, and that they act very differently in our bodies?
The
difference in carbohydrate behavior is ranked by the effect on blood
glucose levels. This ranking system is known as the Glycemic Index(GI).
Our blood glucose rises and falls when we eat a meal containing
carbohydrates. How high it rises and how long it remains high depends on
the types of carbcarbohydrates (the GI) and the quantity eaten. The
Glycemic Index divides carbohydrate behavior in our bodies into three
numerical tiers. High Glycemic Index range is 70 and greater, the medium
Glycemic Index range is 56 to 69, and low Glycemic Index range is 55
and below.
Eating a lot of high GI foods can be harmful to your
health because it pushes your body to extremes. This is of particular
importance if you are overweight and your life style is sedentary.
When
you eat a slice cake, the sugar in that treat, also known as a simple
carbohydrate is quickly converted to glucose in your bloodstream. Your
blood sugar levels rise and spike when simple sugar is eaten alone. If
you eat a candy bar for a mid-afternoon snack your pancreas releases a
hormone called insulin to move the glucose out of the blood stream and
into your cells for energy. As a result, your blood sugar level may drop
dramatically. When your blood glucose levels have a very high spike
followed by a very low drop you tend to get hungry again. Also low blood
sugar can leave you feeling shaky, dizzy, and searching for more sweets
to regain that sugar "high." High blood glucose levels can be a threat
to your health even if you don't have diabetes. In fact, elevated blood
glucose levels within the 'normal' ranfe can damage the blood vessels
and circulatory system, increasing the risk of a heart attack, type 2
diabetes, weight gain, and even certain types of cancer. It does so by
increasing the production of damaging free radicals and creating
oxidative stress and inflammation.
Low GI carbohydrates are the
ones that produce low fluctuations in our blood glucose and insulin
levels. Switching from high to low GI carbohydrates that slowly trickle
(slower gastric emptying time) glucose into your blood stream will not
only keep your energy levels balanced, but will also allow you to feel
fuller for longer periods of time between meals.
Glucose is your
brain's primary fuel source and it needs a steady supply of it
throughout the day. Eating that healthy low GI breakfast provides the
brain with a more constant level of blood glucose compared with the
highs and lows of a high GI breakfast. You can start your day in high
gear every day of the week with a healthy low GI breakfast that will
nourish and sustain you. Also the effect of a low GI carbohydrate food
carries over to the next meal, reducing its glycemic impact. This means
that a breakfast eaten after a low GI dinner the previous evening, or a
lunch eaten after a low GI breakfast carries an unexpected and
beneficial effect that is called the "second meal effect". The experts
caution us not to take this information to the extreme, and they
recommend that you strive for at least one low GI food per meal.
Choosing low GI carbohydrates is one of the secrets to long-term health
and reducing your risk of heart disease, diabetes, and the added benefit
of sustainable weight loss. Now that you know one of the secrets of a
Great Healthy Heart Diet share it and enrich the lives of loved ones and
friends.
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