Showing posts with label metabolism. Show all posts
Showing posts with label metabolism. Show all posts

Hypothyroidism and Weight Loss - Green Tea Extract Increases Metabolism

In a study reported on in the American Journal of Clinical Nutrition, it was found that green tea extract resulted in a significant increase in energy expenditure (a measure of metabolism), plus also had a significant effect on fat oxidation. While some of the effects were originally theorized to be due to the caffeine content of green tea, the researchers discovered that the tea actually has properties that go beyond those that would be explained by the caffeine. 

The same amount of caffeine as was in the green tea, administered alone, failed to change energy expenditure in other studies. This led researchers to believe that there is some interaction going on with the active ingredients of green tea that promotes increased metabolism and fat oxidation. 

The researchers indicated that their findings have substantial implications for weight control. A 4% overall increase in 24-hour energy expenditure was attributed to the green tea extract, however, the research found that the extra expenditure took place during the daytime. 

This led them to conclude that, since thermogenesis (the body's own rate of burning calories) contributes 8-10% of daily energy expenditure in a typical subject, that this 4% overall increase in energy expenditure due to the green tea actually translated to a 35-43% increase in daytime thermogenesis.

Hypothyroidism Creating Metabolism Problems

Hypothyroidism is a condition under which production of thyroid hormone is far less than usual. The purpose of thyroid hormone is to focus on the body's metabolism and when that is hit, it results in slow metabolism. Slow metabolism affects the growth, development and many cellular processes which can have adverse effect on your body. Many people are victims to this disease, women in general bear the brunt most of the times. The increasing age is another reason to be affected by this disease. In early stages of hypothyroidism, there are hardly any symptoms to detect it early on. When left untreated it can cause many health problems including obesity, joint pain, infertility and heart disease.

Blame it on Iodine

If you are seriously trying to lose weight, chances are have tried several different programs. Many of you are still not getting down to your desired or ideal weight. One big reason could be that you are having problems with one little molecule.

Iodine is the basis for the extremely important Thyroid Hormone in your body. That hormone regulates everything from your metabolism to your digestion. Because it usually slowly creeps up on you, it is very common to not realize that there has been a change in your energy level, memory, mentrual periods and skin texture. You could even be losing your hair over this one.

The lack of enough Thyroid Hormone in your body is called Hypothyroidism. There are several things that Hypothyroidism will cause that make you gain weight. First of all, it decreases your basal metabolic rate and overall metabolism. That is the rate that you use up energy. Basically what that means is that the normal muscle tone is lost and your muscles tend to be much more relaxed than normal. Your internal organs that use muscles will also be affected. You will probably notice that mostly by a change in your bowel habits. You will tend to become constipated. Just what you needed!

Muscles need to remain toned to keep your joints in the proper position. So, they will always normally be a little tight. This uses calories (yeah!). Obviously, when they are more relaxed than normal, you tend to gain weight.

Secondly, lack of Thyroid Hormone will make you lazy. At least that is my excuse. hehe.

Dr. Oliver Sacks (made famous in the movie Awakenings) describes one man that had to be helped out of bed in the morning. He was then fed and led to a chair in the corner. In the evening he was led back to bed. During the day he would not even talk. This happened day after day for years! Finally, for some reason, he ended up at the doctors office and was found to be severely hypothyroid. He returned to normal with treatment, but did not even remember all those years where he was a zombie.

If you suspect that you might have hypothyroidism consider these associated symptoms: dry skin, brittle nails, constipation, irregular or heavy menstrual periods (if you are male, you probably won't develop this one), feeling tired and weak, cold skin, coarse, retaining water or thinning hair. Any, or all of these can occur.

You have an increased chance of getting this condition if you have a swelling in the front of your neck called a goiter, diabetes, patches of light skin (not always, but there is a specific condition causing this that also affects the thyroid), iodine deficiency and some medications. Some women develop this as a complication of pregnancy.

If you always buy salt with no iodine, there is a slight chance that you could develop hypothyroidism as a result of the lack of iodine. Remember, iodine is part of the thyroid hormone molecule. Without iodine, your body cannot make the hormone.

When you think you may have hypothyroidism, you should see your medical doctor to get a blood test. One thing that most doctors won't tell you is that you need to be otherwise feeling pretty good during the test. There is one condition called Euthyroid Sick Syndrome that will cause low Thyroid Hormone levels when you are sick. But the hormone levels can return to normal when you get well. So, it is better to get the levels checked when you get well in order to have an accurate test.

Assuming that you have guessed right, your doctor will prescribe a thyroid hormone supplement that will get you feeling better. The only problem at this point is that it is often tricky to get the right amount into your system. You will often bounce back and forth between feeling weak and tired and feeling jittery. But with your doctors help, that should diminish fairly quickly.

The good news is that once your thyroid is in control, you are going to feel much better, have more energy and be back on track with your weight control.