Showing posts with label anti aging. Show all posts
Showing posts with label anti aging. Show all posts

Friday, October 31, 2008

Alpha Lipoic Acid- The Anti Aging Antioxidant

By: GiGi Konwin

The best line of defense in your anti aging program is a powerful antioxidant. Alpha Lipoic Acid is the newcomer in the field, but promises to be one of the most important contenders. We need antioxidants to fight off the effects of stress, pollution and bad diets.

Although Alpha lipoic acid has been known since the 1950s, it was originally thought to be a vitamin and wasn't classified as an antioxidant until 1988.

All antioxidants basically work the same - they are chemicals that get rid of free radicals -- destructive chemicals produced by the body and thought to contribute to aging and ailments ranging from heart disease to stroke.

What's Different About Alpha Lipoic Acid?

Alpha Lipoic Acid is the only antioxidant that is soluble in water AND fat. It can go into all cell parts. It's the only antioxidant that can reach the brain.

It is a metabolic antioxidant, which means it is important for cell metabolism or the energy of the cell.

The body actually makes enough alpha-lipoic acid for cell metabolism, however it acts as an antioxidant only when there is an excess of it and it is in the "free" state in the cells. There is little free alpha-lipoic acid circulating in your body, unless you consume supplements.

When taken orally, it is quickly absorbed. It then changes to it's most potent form, dihydrolipoic acid.

What Are The Benefits of Alpha Lipoic Acid?

*It is currently utilized in Europe to treat peripheral nerve degeneration (neuropathy) resulting from diabetes. *It helps make Vitamin C and Vitamin E work better. *It is used to treat and detox the liver. *Protects and repairs cells. *Scientists are discovering it may be helpful in treating or preventing cataracts, atherosclerosis, strokes and heart attacks, and memory and brain function.

What's the Best Form of Alpha Lipoic Acid?

Actually, there are two forms of Alpha Lipoic Acid and if you're not vigilant, you could be taking the wrong form. Most supplements are selling a type of Lipoic Acid that consists of BOTH forms of the antioxidant, called S and R. You should be looking for R - Lipoic Acid which is the only form of lipoic acid that your body synthesizes and can safely metabolize. The label should state that it is ONLY R-Lipoic Acid. Otherwise, you are probably getting the blend, which is only 50% of the R type.

Are there Any Side Effects?

Alpha Lipoic Acid seems to have very few side effects. The recommended dosage is between 50 - 100 mg per day. Higher doses can result in nausea and upset stomach.

Alpha lipoic acid may benefit blood sugar control, so people with diabetes who are taking medication to lower blood sugar should only take it under their physician's supervision.

Animal studies indicate that alpha lipoic acid may alter thyroid hormone levels, so it could theoretically have the same effect in humans. People taking thyroid medications such as levothyroxine should be monitored by their healthcare provider.

Of course, you should consult with your doctor before taking supplements. It is wise to be tested for hormone and vitamin deficiencies first.

Alpha Lipoic Acid is the first in the Anti Aging Supplements articles. To receive updates and the free book Healthy Aging, click on http://www.antiagingnutritionnews.com/lipoicacid

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Tuesday, May 15, 2007

The Delicious Path Of Antiaging Nutrition

By: Rebecca Prescott

Plant nutrients play a key role in anti aging. Fruit, vegetables, and plant extracts have an array of chemical constituents, called phytochemicals or phytonutrients, that are hugely beneficial to skin health and beauty.

In plants, phytochemicals confer characteristics like color, which can help the plant by providing an attractive beacon to passing bees to help in pollination. Or they offer a protective effect to the plant to prevent insects from harming it, or repel grazing animals. But they have often been found to have benefits for human health when analyzed in laboratories. It is these chemicals in plants that make fruit and vegetables so much more valuable than simply the macro nutrients like vitamin C.

Antioxidants are one class of phytonutrients, though there are many. Antioxidants work by supplying an extra oxygen molecule to those molecules that are missing one, called free radicals. If antioxidants don't supply the missing oxygen molecule to free radicals, the free radicals will take an oxygen molecule from another compound in the body, making one that was previously healthy and intact itself a free radical. Free radicals are not 'baddies', simply unstable chemical molecules, but the effect they have on the body is negative, as they can damage cells. Free radicals are produced as a normal by product of the metabolic processes of our cells, as well as by our immune system as it counteracts the effects of pathogens and the environment.

The trick is to keep the balance in the body where there is enough of a supply of antioxidants to cope with the body's production of free radicals.

Free radicals affect the skin in three main ways. They can alter the fatty layers in your cellular membranes. These fatty layers provide structure to the cell, and control which nutrients and other agents can pass in and out. They can alter the DNA within cells, which aside from the potential to develop into serious illnesses, can make your skin inclined to wrinkles and sagging before its natural biological time. Altered DNA creates a blueprint for collagen and elastin fibers that don't function as healthy, normal ones would. And to compound matters, the skin's pores need healthy collagen and elastin fibers to stay tight and small. So another undesired result is open, large pores.

Free radicals also lead to a process called the cross-linking of collagen fibers. This occurs in the skin's dermis, as a result of collagen and elastin fibers becoming hard, thick, and then binding together. Cross-linked fibers create wrinkles, skin sag, and cause your regular expression lines to become etched in your face as a permanent fixture. With healthy collagen and elastin fibers these expression lines would simply disappear once you moved your facial muscles in a different way. And enzymes that metabolize collagen are encouraged by free radicals, which, given the importance of collagen in youthful looking skin, is best minimized.

Other phytonutrients in plants that are of importance to skin beauty are carotenoids and flavanoids. Flavanoids are great for the health of blood vessels. They strengthen the capillaries that supply important nutrients to the skin's cells, as well as supporting cellular membranes. Healthy cell membranes regenerate quickly, and slow the aging process. Carotenoids also strengthen cell membranes. It seems carrots are not just good for eyesight! And flavanoids help reduce inflammation, as well as increasing levels of glutathione, which is an antioxidant.

References: Erica Angyal, Gorgeous Skin In 30 Days (Lothian Books, 2005)

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