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The Difference Begins with Me | TRA Weight Loss Management

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Slimming teas are not for daily use

Posted: 4:45 PM (Manila Time) | Jun. 23, 2003
Inquirer News Service

Fertility problems?

FROM A READER:

I have been taking a slimming herbal tea for almost a year now. I take it every night. I am worried and not sure if this herbal tea is safe (or if it) may cause fertility problems in the long run. Is it safe to drink this tea every night before sleeping? Will there be any side effects? Are the ingredients safe for consumption? Or will I have problems conceiving? Please help me. This is a very crucial question. I'm so afraid that this could affect my menstrual cycle and giving birth.

There are two kinds of "slimming" or "diet" herbal teas-those that contain laxatives and/or diuretics (senna is a common ingredient) and those that contain herbs like ma huang that suppress the appetite but can also cause nervousness, sleeplessness and palpitation. Slimming teas should not be confused with other herbal teas like green tea, chamomile, ginger, peppermint, etc.

The slimming tea that the reader is talking about (she mentioned the brand in her e-mail but I decided not to reveal it) is of the laxative variety and contains senna.

Using senna on a daily basis is not safe because the herb is a "stimulant laxative" that works by irritating the colon to empty its contents. Stimulant laxatives (whether herbal or laboratory-made) should not be used for more than one week because prolonged use can make the muscular walls of the colon weak and sluggish.

This means that your colon may no longer function properly on its own and you may not be able to go to the bathroom without the tea. This is great for manufacturers since you are now part of a captive market and they can count on your being a loyal client for years to come. But this is not good news for you because the longer you use herbal stimulant laxatives, the greater the risk of permanently damaging your colon. Also, some studies suggest that long-term use of senna is associated with a higher risk of colon cancer.

It is much safer to use a fiber "bulking agent" like psyllium or wheat bran if you suffer from constipation. Fiber, whether from a supplement or from fruits, vegetables and whole grains, will not damage your colon. Make sure you drink a lot of water with the fiber. Regular abdominal exercises also help because contracting your abdominal muscles massages the intestines.

The other danger of using slimming teas is the excessive loss of water from chronic diarrhea. This can lead to dehydration and the loss of electrolytes and minerals like calcium, magnesium and, most importantly, potassium. Low potassium levels can cause muscle weakness, paralysis and cardiac arrhythmia (irregular heart beat). In a worst case scenario, it can lead to death.

This is what happened to 37-year-old June Grell of California in 1991. She had been drinking a slimming tea containing senna for several months when she died unexpectedly and suddenly in her sleep. Several physicians involved in her case pointed to the senna in the tea as the reason why she died from severe cardiac arrhythmia.

Her death inspired her lawyer-husband, Christopher Grell, to become a leading advocate for the regulation of herbal laxatives and diuretics. His relentless campaigning resulted in the passing of a California regulation requiring a warning to consumers on the labels of products containing herbal laxatives like senna. The warning states, in part, that "chronic use of laxatives can impair colon function" and that "acute or chronic diarrhea may result in serious injury or death."

Slimming teas and weight loss

Many dieters take slimming teas because they believe that frequent bowel movements will prevent the food they eat from being absorbed. However, according to an article in FDA Consumer Magazine, "a special committee of FDA's Food Advisory Committee concluded in 1995 that studies show laxative-induced diarrhea does not significantly reduce absorption of calories. This is because the laxatives do not work on the small intestine, where calories are absorbed, but rather on the colon, the lower end of the bowel."

Apparently though, if you take laxatives in very large doses for prolonged periods, absorption of fat is impaired, which can cause greasy diarrhea and weight loss. This is according to the Columbia University medical team behind the popular Go Ask Alice! health website. Laxative abuse is a common practice among anorexics and bulimics. The trade-off for weight loss may be permanent gastrointestinal tract damage and osteomalacia (softening of the bones) due to poor absorption of Vitamin D and calcium. Death could also come knocking at your door just like it did for four women whose deaths were reported to the FDA. All the women were on restrictive diets and were abusing herbal stimulant laxatives.

According to Dr. Rebecca Singson, gynecologist and obstetrician at the Makati Medical Hospital and Asian Hospital, slimming teas are not known to directly interfere with the menstrual cycle or fertility unless they cause rapid weight loss.

She says, however, that it is not safe for pregnant women to be taking laxatives and diuretics of any kind. Responsible herbalists also do not recommend the use of senna and other herbal laxatives during pregnancy. Therefore, if you are trying to conceive, the wisest thing to do would be to stop taking the slimming tea because you don't know when you will get pregnant. If you continue taking the tea, you might be drinking it when you are in the early stages of pregnancy and don't even know yet that you are pregnant.

According to the FDA, other herbal laxatives aside from senna are cascara sagrada, aloe, rhubarb root, buckthorn and castor oil. (Senna may be listed under its Latin name, Cassia angustifolia.) These substances should not be taken for more than one week and dosages should not exceed the manufacturer's recommendations. Do not steep the tea longer than is recommended because this can make the effect stronger.

The FDA also warns that you should seek medical attention if you experience persistent diarrhea, abdominal cramps or other bowel problems while you are using herbal laxatives.

The bottom line is that even prominent herbalists like the late Varro Tyler, author of "The Honest Herbal," do not recommend the daily use of senna or any other herbal stimulant laxative either for weight loss or for constipation.

For more information, go to www.tinajuanfitness and search for "Do Fat Burners Work? Part Three: Slimming Teas" and "How Exercise Affects Fertility"

Antioxidants from Green Tea

These products have been independently evaluated by a team of scientists

Green Tea as an Antioxidant

Virtually everybody reading this page will have heard the term "antioxidant" by now (probably more times than you care to count). As a very broad generalization, the term "antioxidant" refers to the activity possessed by numerous vitamins, minerals and other phytochemicals to serve as protection against the damaging effects of highly reactive molecules known as free radicals. Free radicals have the ability to chemically react with, and damage, many structures in the body. Particularly susceptible to oxidative damage are the cell membranes of virtually all cells and the very source of our genetic material - DNA. Free radical reactions and oxidative damage have been linked to many of the diseases of aging such as heart disease and cancer.

The free radical theory of aging (and disease promotion) holds that through a gradual accumulation of microscopic damage to our cell membranes, DNA, tissue structures and enzyme systems, we begin to lose function and are predisposed to disease. Literally thousands of scientific studies have clearly documented the beneficial effects of dozens of antioxidant nutrients. There is certainly no shortage of nutrients and phytochemicals that possess significant antioxidant activity in the test tube - in fact, it seems as if every nutraceutical on the market possesses some degree of antioxidant activity. It is very well established that an increased dietary intake of antioxidant phytonutrients is linked to a reduced rate of oxidative damage as well as reduced incidence of chronic diseases such as heart disease and cancer. Perhaps the best specific data regarding antioxidant activity and the potential for real health benefits exists for green tea extract.

Aside form being the second-most consumed beverage in the world (water is the first), green tea has been used medicinally for centuries in India and China. The active constituents in green tea are a family of polyphenols (catechins) and flavonols which possess potent antioxidant activity. Large polyphenol molecules called tannins form the bulk of the active compounds in green tea, with catechins comprising nearly 90%. Several catechins are present in significant quantities; epicatechin (EC), epigallocatechin (EGC), epicatechin gallate (ECG) and epigallocatechin gallate (EGCG). EGCG makes up about 10-50% of the total catechin content and appears to be the most powerful of the catechins - with antioxidant activity about 25-100 times more potent than vitamins C and E. A cup of green tea may provide 10-40mg of polyphenols and has antioxidant activity greater than a serving of broccoli, spinach, carrots or strawberries. A number of commercial green tea extracts are standardized to total polyphenol content and/or EGCG content (but many are not).

Several epidemiological studies show an association between consumption of total flavonoids in the diet and the risk for cancer and heart disease. Men with the highest consumption of flavonoids (from fruits and vegetables) have approximately half the risk of heart disease and cancer compared with those with the lowest intake. The primary catechin in green tea, EGCG, appears to inhibit the growth of cancer cells as well as play a role in stimulating apoptosis (programmed cell death), both of which are crucial aspects for cancer prevention. In terms of heart disease protection, the potent antioxidant properties of polyphenols would be expected to reduce free radical damage to cells and prevent the oxidation of LDL cholesterol - both of which would be expected to inhibit the formation of atherosclerotic plaques.

This review concerns the specific actions of green tea extract as a powerful antioxidant (versus its use as a weight loss agent which has also been reviewed here). In this regard, green tea may be used by consumers looking for a broad-spectrum antioxidant or as specific treatment/prevention for certain cancers. For either of these uses, as a general antioxidant or as an "anti-cancer" agent, SupplementWatch urges you to look for the highest polyphenol content with the lowest caffeine content at the best price. Aside from the clear benefits of green tea as an antioxidant, however, recent studies have suggested a role catechins in promoting weight loss - and another review (using a different set of criteria) evaluates the value of specific green tea extracts as adjuncts to a weight loss regimen.

References
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Beauty of Innovation
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Contact +63.927.724.6878 to inquire