The Glycemic Index, Explained

Do you know the difference between high glycemic foods and low glycemic foods? If you’ve ever felt light-headed or shaky (and very hungry) a few hours after eating certain foods, then you’ve experienced the “roller-coaster ride” of high glycemic foods. You’ve probably noticed that all foods don’t have this effect on you, and those that don’t are most likely low glycemic foods.

The Glycemic Index or GI is a scale that ranks high-carbohydrate foods according to how much they raise your blood glucose levels after eating. The GI ranges from 0 to 100. Foods with a high GI are digested quickly and cause a significant spike in our blood sugar levels. This increase in blood sugar causes a corresponding increase in insulin to bring those sugar levels back down. Low glycemic foods have less of an impact on your body because they are digested and absorbed more slowly, so you need less insulin to control your blood sugar levels. When sugar and insulin aren’t spiking, you won’t get that light-headed or weak feeling. You just feel normal.

There are many more advantages to choosing a low glycemic diet. Low glycemic foods are beneficial to our health because controlling blood sugar and insulin levels is one of the keys to reducing our risk of heart disease and diabetes. Low GI diets are also useful for controlling our appetite and aiding in weight loss.

When our blood sugar levels are maintained relatively stable, our bodies perform better. A study from the Harvard School of Public Health demonstrated that high GI diets are strongly linked to an increase in the risk of Type II diabetes and heart disease. The World Health Organization recommends that people in developed countries eat as many low-GI foods as possible, to prevent heart disease, diabetes, and obesity.

A hundred years ago, our foods simply took longer to digest. They came straight from the farm to our table, in its natural state, containing the original fiber and other natural components they were grown with. Modern food processing practices have stripped our food of many of its natural properties, making it easy to package and store, and extremely quick to digest. And the faster we digest the food, the quicker we get hungry again.

This is the “roller coaster” that happens when we consume too many high GI foods. High glycemic index foods may give you a burst of energy, but this is followed by a “crash” as the insulin takes the blood sugar back down and you feel hungry again. To make things worse, these insulin spikes turn all that excess blood sugar into fat, which is usually stored right around the abdomen.

On the other hand, when we consume low glycemic foods such as fruits, vegetables, legumes and whole grains, the rise in blood sugar is slower and more sustained over time. That means you feel fuller longer and are less tempted to eat again so soon. Our energy levels are maintained throughout the day, which not only provides health benefits but also makes us feel better, because we’re not on that up and down cycle from morning to night.

If you would like to increase your consumption of low glycemic foods, here are some suggestions.

Eat less of the following:

• Avoid sugary snacks, especially those made with refined sugar. Not only are they high GI foods, they are mostly empty calories.

• Many salad dressings are very high GI foods.

• While potatoes are nutritious, especially with their skins intact, they are also very high GI foods.

Eat more of the following:

• Fruits and vegetables in their natural state, preferably organic. Many commercially grown fruits and vegetables have a higher sugar content than organic. Commercially grown foods also have added chemicals and pesticides.

• Eat foods with lots of fiber, which tends to lower the glycemic index of everything you eat.

• Choose breakfast cereals with whole grain barley, bran, and oats.

Interestingly, the cooking method can affect the GI rating of a food. For example, boiled potatoes are rated an 81 on the glycemic index, while baked potatoes rate as 119 and mashed potatoes 104.

However, rather than obsess about individual GI food ratings, remember that the most important goal is to have a low glycemic diet overall. Eating the occasional high GI food is OK, especially if you also eat a low glycemic food along with it. Try to focus on eating a healthy, balanced diet including a wide variety of whole, natural, and fresh foods. By doing so, you won’t even have to consult the GI scale, because you’ll be eating a relatively low glycemic diet and gaining all the benefits described here.

For more information and to hear about the Health Seminars provided for FREE at University Chiropractic stop by our office in Durham or call 919-493-1940.

How To Pick Running Shoes

 Many people start a running program as a New Years resolution.

Running is wonderful cardiovascular exercise and a popular workout choice for men and women. Just as a carpenter requires the right tools for his trade, the right pair of running shoes is essential for both the casual and the serious runner. There are some things to consider when purchasing a running shoe.

How far and often will you be running? If you are a casual runner (less than ten miles per week), then a basic running shoe will be fine. If you are training for a marathon, consider making a true investment in your running shoes for optimal performance.

Consider the arch in your foot. Those with a high arch, need a running shoe with a curved shape. If you have an average arch, a semi-curved shoe might be the best fit. Those with a low arch or flat feet need a straight shape shoe.

Understand pronation, which is the rolling of the foot from heel to toe through the foot strike. A proper or neutral pronation is hitting the outside of the heel and up to ball of your foot evenly across the front. This is how your foot reduces the stress of impact. Underpronation means that the outside of your foot takes most of the shock instead of finishing in the neutral position. Overpronation is too much roll across from the outside to the inside of your foot.

To determine your level of pronation, look at the shoes you walk or run in. Most everyone will begin on the outside of the heel, the real indicator is the wear on the forefoot. If most of the shoe wear is:

• On the medial (inside) side then you Overpronate

• On the lateral (outside) side then you Underpronate

• Uniform across the forefoot then you have a Neutral Stride

Where will you be running? Most people run on pavement or sidewalks, so most running shoes are designed with this in mind. However, if you are going to be running on uneven or softer surfaces (such as mountain trails or grass), look at shoes intended for those kinds of surfaces.

Shop for running shoes late in the afternoon, as feet are at their peak size at this time of day. When trying on the shoe, make sure there is a full thumb width between the end of the longest toe and the end of the shoe. In a properly fit running shoe, the toe box will allow the toes to move freely. The heel should not slip or rub against the shoe and the sole should flex with ease where the foot flexes.

Go to a store that specializes in running shoes or at least to a sporting goods store. The sales associates will be able to help you make a decision on the best shoe for you.

If you run often, consider purchasing more than one pair of running shoes. This way, you can rotate them. If you run often, your shoes should be replaced every six months or so.

Do consider price so your budget isn’t blown, but don’t sacrifice comfort and durability in the process.

Runners have a wide selection of styles, colors and levels of comfort from which to choose when looking at running shoes. Remember, whether you are a casual runner or a serious runner, comfort and excellent support are essential for the best performance!

Women Matter News Report – Chiropractic and Infertility

Today I wanted to share a great story that a local news station in Omaha Nebraska did on Chiropractic and Infertility. It features the story of one woman who became pregnant after 3 months of chiropractic care when other infertility treatments had failed her. For any couple wishing to have a child, this story represents real hope .

But it’s just one women and one situation and if you saw this segment on your evening TV, it would be easy to dismiss the story as a coincidence. The critical question is…how many other infertile women has chiropractic helped and what is the likelihood it will work for me?

The doctor in the story explains how spinal adjustments can aid fertility issues. His explanation is that adjustments ensure that the nerves which send signals to the ovaries and other reproductive organs are transmitting properly. One of the basic tenets of chiropractic care is that normal nerve function is necessary for good health – which of course includes normal hormonal functions, ovulation and menstruation.

But again, he is just one doctor in one town. Is there any evidence that chiropractic really improves fertility among women that are struggling to conceive?

The answer is yes.

At the end of the news story the anchor makes reference to a research study (Behrendt, 2003) that showed 14 of 15 women with a history of fertility issues became pregnant after starting chiropractic care. The women’s stories are all quite different and all very personal.

One 32-year-old woman had had no menstrual cycle for the past 12 years. She had been unsuccessful with medical infertility treatments. Then after 4 months of chiropractic care her menstrual cycle resumed and after two additional months she became pregnant – unassisted.

Another great story to emerge from the study was that of a 26-year-old woman with terrible scoliosis. She had had multiple medical fertility treatments to help her conceive. She became pregnant – again unassisted – in her seventh month of chiropractic care.

Reflecting upon the findings of the study Dr. Behrendt commented that “although not conclusive, the results of the research should stimulate consideration of structure as a factor in infertility and increase awareness of the role of the central and peripheral nervous system in fertility.” We couldn’t agree more.

As a woman reading this article, do you know where in your spine the nerves that supply your reproductive organs are located? Most likely not. And if you are like most women, you’ve never thought about reproductive issues from the perspective of nerve signals.

Fortunately, this line of thinking is starting to make its way into the mainstream. I was pleasantly surprised to find that the American Pregnancy Association website makes reference to nervous system function and the benefits of chiropractic care for infertility. The American Pregnancy Association site states that “in many cases, fertility issues may be associated with improper nervous system function, poor nutrition, high stress and poor lifestyle habits.” It goes on to note that “chiropractic care can be used in conjunction with traditional approaches to fertility issues and can greatly enhance the chances of successful medical procedures such as IVF.”

Once you factor in the price and possible side-effects of IVF treatments, choosing chiropractic care first to aid conception is a very logical choice backed by solid evidence.

If someone you love is struggling with infertility and has never visited a chiropractor for an evaluation, please share this article with them. If you personally are having difficulty conceiving, please call us so we can answer your questions about chiropractic and fertility.

Bibliography

(n.d.). Retrieved August 11, 2011, from American Pregnancy Association: http://www.americanpregnancy.org/infertility/infertilityandchiropractic.html

Behrendt, D. (2003). Insult, Interference and Infertility:An Overview of Chiropractic Research. Journal of Vertebral Subluxation Research, 1.