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The minerals zinc and copper can be purchased as single products, but there’s good reason to consider a combination product that pairs the two.

Zinc blocks the absorption and enhances the excretion of copper when taken over time. So, when zinc is recommended long term (over many months) for any condition–from arthritis to prostate problems or even Alzheimer’s–it’s important to get some copper as well. A combination product will help prevent a copper deficiency and the anemia that can develop as a result.

Vitamin B6

Day by day, there’s probably no nutrient as actively involved in keeping your system running smoothly as vitamin B6. Technically an umbrella term used to describe three B vitamins (pyridoxine, pridoxal, pyridoxamine), vitamin B6 partakes in no fewer than 100 chemical reactions throughout the body. It functions primarily as a coenzyme, working along with other enzymes to speed up chemical reactions in cells.

Vitamin B12

In l948, scientists were successful in identifying a nutritional substance in calf’s liver that could prevent pernicious anemia, a potentially deadly disorder that mainly affects older adults. The compound—vitamin Bl2 (or cobalamin)—turned out to be the last vitamin to be discovered.


Vinpocetine is a derivative of an extract taken from the lesser periwinkle plant (Vinca minor), an evergreen undershrub. The shrub is native to Europe, where it has been been under examination since the 1950s for boosting stroke- and age-related decline in brain function. Only recently has vinpocetine become available in the United States, and not as a prescription drug like in Europe, but as an over-the-counter dietary supplement.


Also known as vitamin B3, niacin has earned a reputation (in supplement form) as a natural cholesterol-lowering agent that often rivals prescription drugs in mild to moderate cases. It may also help to prevent or treat a number of other disorders, from arthritis and depression to diabetes. Three forms of niacin supplements–each with a specific therapeutic role–are commercially available: nicotinic acid (also called nicotinate), niacinamide and inositol hexaniacinate, a compound of niacin and inositol (another B-family vitamin).


Melatonin is a hormone manufactured and released into the bloodstream by the pebble-size pineal gland nestled deep within the human brain. Surprisingly, scientists only became aware of melatonin’s presence in 1958. Children tend to excrete large amounts of this hormone, while older adults produce relatively little. But individual levels of melatonin vary widely. About 1% of the population naturally has quite low levels, while another 1% has levels 500 times above the average.


Essential for hundreds of chemical reactions that occur in the body every second, the mineral magnesium has received surprisingly little attention over the years. Recent findings, however, suggest that it also has important health-promoting benefits, from an ability to prevent heart disease to a role in treating such chronic conditions as fibromyalgia and diabetes.

Ginkgo Biloba

This popular herbal medicine is extracted from the fan-shaped leaves of the ancient ginkgo biloba tree, a species that has survived in China for more than 200 million years and now grows throughout the world. (The leaves are double, or bi-lobed; hence the name biloba.) Long used in traditional Chinese medicine, it is only in the last few decades that the medicinal uses for the herb have been studied in the West.

Ginkgo Biloba

Ginkgo biloba has the longest life span of any tree, with some ginkgo trees
estimated to be more than 1,000 years old. Even more astonishing is that
ginkgo, as a survivor of the Ice Age, has been around for more than 200
million years.