Your Metabolism and You- Part Two

April 8, 2009

Dr. Steven Horvitz- Reading between the Lines:
Bringing you healthcare information you can trust!

Your Metabolism and You- Part Two

As mentioned in my previous newsletter, You and Your Metabolism - Part One, your weight is a result of a balance between anabolism-the storing of energy, and catabolism- the burning of energy. If you are overweight you tend to store more energy than you burn. If you are underweight, you tend to burn more energy than you store. During your yearly wellness exam, I take the time to review your diet and food choices. It also tends to be the time when my patient's eye contact starts drifting away. But back to your metabolism. The most common discussion if you are overweight is about becoming more of a burner than a storer of energy. While we all know that exercise increases the burning of energy, all the exercise in the world will not make you lose a whole lot of weight if you still store too much energy as fat. So how can you tip the balance towards becoming a burner as opposed to a storer?

Let me explain by bringing insulin into the equation via carbohydrates and sugar.

When you eat carbohydrates, and that includes both simple and complex carbohydrates, they are digested and broken down into glucose which enters your bloodstream. Elevated concentrations of glucose in blood stimulate the release of insulin, and insulin acts on cells thoughout your body to stimulate uptake, utilization and storage of glucose. When glucose is overabundant, it gets converted into triglycerides and stored as fat.

See the diagram below:

Excess carbohydrates---> increased glucose (sugar) ---> increased insulin---> increased storage of fat ---> increase in bad cholesterol ---> increase in weight.

So if you want to lose weight, and have that weight loss come from loss of fat, then by decreasing your carbohydrates the following occurs:

Low carbohydrates---> normal glucose---> normal to low insulin---> decrease in storage of fat---> decrease in bad cholesterol --->burning of fat for energy--->decrease in weight.

Let us look at this another way. When we need energy to burn, our body first uses glycogen (liver glucose store), followed by glucose available from our bloodstream. When these are used up, the next most available energy source is from our fat cells. So if we keep our carbohydrates low, thereby lowering the amount of glucose available for use, our bodies become better at burning our fat cells for fuel. Our metabolism shifts to burning more fat than we store, and weight loss comes predominantly from our fat stores. In men this is usually a decrease of weight around the abdomen. In women the weight loss occurs from the hip, legs and buttocks.

Now, if we want to build muscle, insulin as an anabolic hormone helps. When we eat abundant protein, this is digested into amino acids. Insulin acts upon the amino acids to form proteins. Proteins are the building blocks of muscle. To increase your muscle tone, start a good exercise program, to stimulate insulin to build muscle. This is why body builders can eat a whole lot of calories, put on a lot of muscle, but keep their body fat low. This is opposite to sumo wrestlers. Sumo wrestlers eat a high carbohydrate diet, thereby increasing their fat storage, and thus increasing their weight.

So take your pick.

Low carbohydrate diet with moderate exercise:

Or,

High carbohydrate with minimal exercise:

Any questions???

If you have any suggestions about topics for future newsletters, or how to make the newsletter better, please send me an email at DrHorvitz@DrHorvitz.com.

To Good Health!!

Steven Horvitz, D.O.

Board Certified Family Medicine

Founder of The Institute for Medical Wellness
128 Borton Landing Road, Suite Two
Moorestown, NJ 08057
Phone: 856-231-0590
Fax: 856-294-0311

To view previous newsletters, please click here.

For more information about Dr. Horvitz and The Institute for Medical Wellness, please click here.

To view upcoming Wellness Network Events, please click here.

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Your Metabolism and You- Part One

April 4, 2009

Your Metabolism and You- Part One

The most common health complaint I hear in my practice deals with weight management. Upon visiting my office. my patient's often get grumpy when asked to step on the evil scale.

When the evil, vile scale is read, I often hear the phrase, "It must be that I have a slow metabolism". But we should all remember that evil spelled backwards is live, so a scale is not always such a bad thing, but a necessary part of my job, and helps to keep you a-live!

Overall, metabolism is not just about being overweight, but is also responsible for being underweight. How can this be? Let us take a look at metabolism, and its definition.

Metabolism is the set of chemical reactions that occur in living organisms in order to maintain life. These "metabolic" processes allow us to grow and reproduce, maintain our organs, and respond to our environments. Metabolism is actually a balance between anabolism-the storing of energy, and catabolism- the burning of energy.

If you store more energy than you burn, you gain weight and may look like the figure on the right in the above cartoon. If you burn more energy than you store, you lose weight, and may look like the figure on the left.

How we maintain balance to get to a healthy weight is where the fun, or pain begins, and has been the subject of numerous diet books, of which, I have read a great many. Some have made me laugh out loud, while others have changed the way I eat and the way I practice. The first book I read was Protein Power, by Dr Eades. This book went over the metabolic processes of how we store and burn energy. It advocated we lower carbohydrates in our diet along while increasing both proteins and fats. It went against most of the lessons I was taught in medical school, yet it made tremendous sense. But I was not yet convinced and was not about to change my views based on one book. So I continued to research. Dr Atkins diet revolution, The Schwarzbein Principle, and Life Without Bread were all books that had similar concepts to Protein Power, but with their own distinct flavor. These books all based their theories on real human physiology. But just like life and politics, theories are one thing and reality can be another.

Would the theory of eating a low carbohydrate diet help the overweight and obese to lose weight? The only true way to know would be to test it out. But try convincing anyone to go against what all the so called experts on television and radio say about a healthy diet.

Well, the stars must have all been aligned, as a patient came to my office who had recently read Protein Power and wanted to try out the diet. I agreed to help and to monitor their progress by watching their weight, blood pressure, cholesterol and sugar levels. The low carbohydrate diet was a huge success. Weight loss with normal sugars and a much improved cholesterol profile. Blood pressure dropped so much that we had to stop blood pressure medications, and energy levels rose. How did this happen while eating more protein and fat, and less carbohydrates? Could all I was taught in medical school, and all the "media pundits" be wrong? More on this later. But if you want a sneek peek, check out the books mentioned above. It may open your eyes, slim your waistline, improve energy levels and balance out your metabolism!

If you have any suggestions about topics for future newsletters, or how to make the newsletter better, please send me an email at DrHorvitz@DrHorvitz.com.

To Good Health!!

Steven Horvitz, D.O.

Board Certified Family Medicine

Founder of The Institute for Medical Wellness

128 Borton Landing Road, Suite Two

Moorestown, NJ 08057

Phone: 856-231-0590

Fax: 856-294-0311

Please visit http://www.drhorvitz.com/ for more information about Dr. Horvitz and The Institute for Medical Wellness.

To view upcoming Wellness Network Events, please click here.