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2012年4月5日 星期四

Nutritional Supplements


What Makes the Difference Between Grades of Nutritional Supplements?


There are a few processes which can make all the difference in the quality and purity of the nutritional supplement you purchase. These processes are known as follows:

A process called pharmaceutical GMP compliance is the main fundamental difference. This process is among the most rigorous and stringent manufacturing standards for dietary supplements in the world. By using supplements that adhere to pharmaceutical GMP compliance standards, you can be sure the product you are buying is free from harmful contaminants and contains the actual ingredients listed.

The second process is something known as a COA (Certificate of Analysis), which a company selling health supplements should have on file for each batch of products produced. In short, this confirms the potency of the ingredients used in their nutritional supplements.

Products you obtain should use only standardized herbal extracts. These are what contain the actual active ingredients of the herb, and, hence, where the true therapeutic benefit lies. Many companies on the market do NOT use standardized herbal extracts, because alternative health supplements manufactured without them are much cheaper to produce.

Are there any side effects?
A quality health supplement will contain all natural ingredients, however, that does not mean a person will have no side effects. Side effects can vary depending on you as an individual. However, generally, by obtaining a quality natural supplement, you will be at a far less risk from unwanted side effects.

High Synergy
All ingredients should be assessed at molecular level to ensure synergy, safety and effectiveness. This is crucial because when some ingredients are combined they will help create other substances in the body.

The Best Delivery System
Without a good delivery system a supplement is rendered useless. Many supplements will pass through the body with the active ingredients never being released. Other supplements will lose their efficacy when active ingredients are released in the stomach and they are converted to less potent ‘salt’ forms by the hydrochloric acid present in the stomach.

Products should use techniques to ensure that the active ingredients reach the liver via the blood stream for distribution to various body organs and cells.

1. It encases the active ingredients using a technology known as enteric coating. This enables the active ingredients to be released in the upper intestine, thus avoiding damage to any of the nutrients.

2. It binds various active ingredients with larger molecular sizes to selected enzymes, which when released in the upper intestine, break the molecules down to a smaller size to enable easy transfer of the nutrients through the intestinal wall into the blood stream and then on to the liver.

Are you purchasing from a reputable company that sells a wide array of health supplements and has the company been in business for some time?

Many companies on the market selling vitamins are no more than middle men. You will find that they purchase bulk raw ingredients from a wholesale distributor and have little quality control. Some companies buy supplements already packaged in an unlabeled bottle and add their own label, this is appalling to be honest, and its surprising these companies get away with it, after all, its us as consumers who are the ones that suffer.

Some even dilute the active ingredients in order to increase profits.  Random samples by consumer groups have shown that many supplements being sold do not contain what is printed on the label. Reputable companies guarantee quality, content and customer satisfaction.

What are the ingredients contained in the supplement?


Vitamins, although important for our daily diet, are very weak anti oxidants when compared to other, more powerful nutrients. We need high doses of antioxidants to fight off free radicals. Free radicals have been said to be the very process of what causes aging and disease in the human body. Anti oxidants balance out the acid in our internal system and help keep free radicals under control.

The benefits of such powerful nutrients for our present and future health.

Aloe vera is a potent anti-oxidant:
"Not all Aloe Vera's are the same...
It is important to be aware that the Aloe Vera extract you see advertised is usually quite weak and the only type that gives the protection is one which is harvested and prepared in a special way which involves spray drying and concentrating to 200:1. This is quite an uncommon extract as it is more expensive to process in this manner. It is nothing like the common aloe vera sold in liquid form which also has additives and preservatives which are needed when in solution form."

Health Turmeric..
Turmeric is a powerful antioxidant, neutralizing free radical damage, and acts as an anti-inflammatory, which may help mitigate arthritis (and other) pains. Many people, in fact, swear by turmeric pain relief.
Health turmeric also harbors anti-carcinogenic properties. For example, curcumin slowed the development of prostate cancer on tumor cells in a lab dish and another study at a major University revealed that "a mixture of curcumin and isoflavonoids is the most potent inhibitor against the growth of human breast tumor cells."
A Clinical study at UCLA revealed that curcumin from tumeric may help slow the progression of Alzheimer's. Specifically, it reduced the buildup of amyloid protein "plaques" in the brain of rats. Amyloid protein plaque buildup is one of the primary factors that characterizes Alzheimer's disease. Studies have shown that cultures such as India which use a lot of curcumin in their cooking have a much lower incidence of Alzheimer's disease than the Western world.

Ginger Root..
Ginger root herb is also a highly effective antibiotic agent, strong antioxidant (scavenges free radicals that would otherwise damage healthy cells), and harbors anti-inflammatory and pain-relieving properties. Therefore, it has been used to treat arthritis, along with bodily aches and pains. It also may benefit colds, flus, and allergies.
Medical ginger root, indeed. For these reasons and more, this is one of the most popular and sought after herbals.

Green Tea..
Because of its potent antioxidant strength, green tea extract is a powerful immune system booster, which is just one of the health benefits of green tea.
Studies and research have revealed that green tea extract may, in fact, be one of the most potent nutrients in the fight against various forms of cancer and heart disease. The benefits of green tea extract continue to impress the researchers of Modern medicine.
For example, it has been shown to reduce the damage caused by LDL (bad) cholesterol, which, if left unchecked, leads to the buildup of plaque in arterial walls. Such buildup can eventually trigger off heart attacks. In addition, green tea extract harbors a compound that appears to induce cancer cells to die off and stop reproducing.
Large studies have shown that both men and women who consumed green tea had far less pancreatic, rectal, and colon cancer. Experts are hopeful the benefits of green tea extract will prove in the future to be just as beneficial for breast, stomach, and skin cancers as well.
Lastly, green tea seems to hold great promise as a substance that can regulate glucose –- the body’s primary source of fuel. Any glucose that isn’t used becomes stored by the body as fat. Therefore, in this way, green tea may function as a weight loss aid.

Red clover..
The benefits of red clover have most been attributed to alleviating a wide range of skin disorders, such as eczema and psoriasis.
Traditionally, it was used as a cancer fighting agent, but, in this regard, there is scant scientific evidence.
Other noted benefits of this herb include: alleviating bronchitis, and associated coughing; fighting colds, flus, and sore throats; mitigating liver problems; helping to relieve arthritis pains; and improving digestion.
Red clover is rich in the following nutrients, all of which have their own respective benefits: calcium, chromium, magnesium, potassium, and vitamins C and A, and the B-complex.
In addition, there are chemically active constituents in red clover that have been ascribed to have benefits for postmenopausal women. Like some other herbs, it is believed these compounds can have positive estrogen regulating effects.

Gotu Kola..
Gotu kola extract is best known for promoting healthy skin and helping skin conditions, such as burns, scar tissue, psoriasis, and the like.
More recently, however, it has been attributed a broad range of benefits that include enhancing mental acuity, staving off memory deterioration, improving blood flow by strengthening blood vessels, and mitigating unsightly varicose veins.
Unlike some other herbal remedies, where the scientific evidence is scant, the gotu kola benefits are strongly suggested by various studies.
For example, in the book published by Reader's Digest called "The Healing Power of Vitamins, Minerals, and Herbs" it states: "In one study, 30 developmentally disabled children were found to have significantly better concentration and attention after taking gotu kola for 12 weeks..." and "In more than a dozen studies observing gotu kola's effects on veins...about 80% of patients with varicose veins and similar problems showed substantial improvement."
The active constituent of the herb is called asiaticoside. It is this substance which harbors properties that seem to be able to help the body build connective tissues, such as the collagen that keeps skin firm, and enhance vascular and neurological functioning.

Alpha-Lipoic acid..
Alpha-Lipoic acid acts as a facilitator to other powerful antioxidants, such as Vitamin E and C, by “recycling” them in the body, thus increasing their effectiveness. Because it is believed to be such a powerful antioxidant, it is now used to treat and prevent a wide array of age related diseases, including diabetes, cataracts, heart disease, and Alzheimer’s, along with boosting the immune system.
In particular, it has been used to treat nerve damage that can result from diabetes. The nerve damage is believed to be a result of free radicals, which can be counteracted by potent antioxidants such as alpha-lipoic acid. It has also been shown in studies to help diabetics lower their glucose levels.
Another major benefit is its ability to chelate (pull out) heavy metals (such as lead, cadmium, and mercury) and assists the liver in clearing out other bodily toxins.

Resveratrol..
1) Powerful antioxidant. Antioxidants are substances that can neutralize free radicals, which are highly reactive compounds that, if left unchecked, can lead to cellular damage. Free radicals are believed by some experts to be a major culprit in heart disease, cancer, and aging itself.
2) The study conducted by Dr. Pezzuto showed that resveratrol was effective against the progression of cancer. Most impressively, it was effective in all the major stages of cancer -- the initiation, promotion, and progression.
3) Resveratrol has been shown to help lower bad cholesterol (LDL), and, therefore, may be a potent nutrient in preventing cardiovascular disease. It has also shown to reduce the clumping of platelets. Thus, such conditions as atherosclerosis and heart attacks, which are often caused by arterial blockages, may potentially be reduced by this potent substance.

Quercitin..
Bioflavonoids are potent nutrients that help maintain the health of collagen. Collagen is responsible for the firmness and health of our largest organ -- our skin. Indeed, wrinkles and sagging is the direct result of the breakdown of collagen.
Quercitin, along with other bioflavanoids, can also improve the health of capillaries and connective tissues. Because of this, the many benefits of quercitin include alleviating bruising, edema, varicose veins, and fragile capillaries.
Other benefits include its ability to inhibit the release of histamine. As such, it is said to help mitigate conditions brought on by some type of allergin (ex. eczema, asthma, hay fever, etc) and has been ascribed anti-inflammatory properties. Indeed, the prestigious Mayo Clinic, after conducting laboratory tests, concluded that quercitin may be useful in helping to treat or prevent prostate cancer.
In the words of the Mayo Clinic researcher Nianzeng Xing, Ph.D who presented the findings of the study: "Our laboratory results showed quercitin blocks the androgen activity in androgen-responsive human prostate cancer cell lines."
"By blocking the androgen activity," he continued, "the growth of prostate cancer cells can be prevented or stopped."

DMAE benefits..
DMAE can elevate one’s mood, counter depression, and boost cognitive functions (such as memory and concentration), and even increase intelligence. These benefits stem from this nutrient’s role in manufacturing acetylcholine, which is a substance responsible for healthy mental functioning.
Physician’s monitoring patients on DMAE have reported that such people are more congenial, upbeat, and exhibit greater mental acuity. In addition, people taking it often report sleeping better and having more energy while awake.
Lastly, one of the best DMAE benefits is that it promotes healthy skin, by preventing the manufacture of arachidonic acid, which is a substance that leads to the formation of wrinkles. For these cosmetic purposes, it can be both taken as a nutritional supplement and applied topically via a cream.

The Nutritional supplements you should avoid are as follows:
• Cheap vitamin supplements from your local vitamin store - They will be bouught in bulk and adhere to none of the above that we have mentioned.
• Nutritional supplements that do not contain the ingredient's above along with vitamins and minerals - This is because nutrients work together, and, if a certain nutrient is not contained, the effects of a certain nutrient will be rendered useless.
• Supplements that do not comply to pharmaceutical GMP compliance.
• Avoid companies that do not hold a Certificate of Analysis confirming the potency of the ingredients listed.

2012年4月4日 星期三

乳癌


塑化劑的刺激 

乳腺細胞裏面的細胞核,有兩種接受體是屬於雌激素接受體(Estrogen Receptor),一種稱為甲(Alpha),另一種稱為乙(Beta),所有動物的雌激素,會黏着甲的接受體,而植物的雌激素,則會黏在乙的接受體。黏着甲接受體的時候,會令到乳腺細胞增新,故此,如果進食一些致癌物質,即是含有大量動物雌激素的食物,例如雪蛤膏、海膽、豬生腸等,或是食進一些含有化學物品的食物,也會刺激到甲,例如含有塑化劑的食物,也會令到乳腺細胞內甲的接受體受到刺激。


當甲接受體受到刺激後,細胞會減少上皮鈣黏附素(E-Cadherin),從而促使細胞癌變,所以甲型雌激素,便是導致乳癌的起因。

至於坊間有傳言指,經常熬夜能導致患上乳癌,其實並不一定是熬夜所導致患乳癌的,不過當遇上壓力時,身體內便會增加大量腎上線素(Epinephrine),而腎上線素擁有防止細胞自滅的功能,換句話說,即是有保護癌細胞的作用,因此經常熬夜,便會增加細胞產生癌變的機會。

市面上出售的止汗劑,其實是一種化學物品,它裏面有一種成分叫羥基苯甲酸酯類(Paraben),Paraben 內含少量塑化劑,這類物品能夠透過刺激乳腺細胞的Alpha接受體,而令到細胞開始增生。

至於空氣清新劑,其實也是由一堆化學物品所組成的,當中包括塑化劑(Phthalates),塑化劑能夠刺激乳腺細胞的Alpha接受體,從而速進細胞的增生。
根據美國加州大學柏克萊分校的研究報告表示,西蘭花內含有一種物質稱為芥蘭素(Indole Carbinol),它能夠令乳腺細胞減少製造過多的雌激素Alpha接受體。若果Alpha接受體減少了,那麼能夠刺激Alpha的致癌物質進入身體後,也沒有地方落腳,可減少癌變風險。

黃豆內含有一種成份稱為大豆異黃酮(Genistein),是一種植物雌激素,當進入身體後首先會黏在Beta的接受體,這樣並不會使乳腺細胞增新的。但若過多的Genistein黏着所有的Beta接受體,剩餘的Genistein便會開始黏着Alpha接受體,這個時候便會令到癌細胞增生,所以黃豆對於癌細胞是好還是壞,要視乎進食黃豆份量的多與少來決定,如果日常飲杯豆漿或進食豆腐,身體並不會吸收太多的Genistein,但若果進食大豆精華素的話,身體便會存在太多Genistein,有機會影響Alpha雌激素使乳腺細胞增生。

當歸內有一種成份稱為阿魏酸(Ferulic Acid),它能夠令乳腺細胞增生,以及增加血管內皮細胞生長因子,當癌細胞愈長愈大,便會分泌出血管內皮細胞生長因子,以吸引附近的血管再生長更多小血管與癌細胞連上,從而將營養輸送給癌細胞,除此之外,癌細胞亦可以透過這些小血管,擴散至全身。故此,當患有癌症的時候,不論是乳癌還是其他癌病,也不要進食當歸。

乳癌之所以得以形成,主要是由於乳腺細胞內的Alpha接受體經常受到刺激所導致的。其實卵巢分泌雌激素,主要由兩種荷爾蒙控制,一種為卵泡激素(FSH),它能夠令卵巢內的卵子成熟。

另一種稱為黃體生成素(LH),它的主要作用是促使成熟的卵子排卵,若果食物當中,含有大量物質的雌激素,便會令乳腺細胞受到無謂的刺激,故此盡量減少進食含有動物雌激素的食物,例如螃蟹、蟹籽等等,小心選擇食物,便可以減少細胞癌變的機會。

2012年2月29日 - 信報
2012年3月8日 - 信報