Posts tagged Sources

There are several resveratrol sources in nature. You might call them “good, better and best”. In this article, you can learn about each of the sources and what amount you will find in each one. The health benefits of this antioxidant are believed to be numerous. All that we need is a good source.

Red grapes provide between .24 and 1.25mg per cup. The variation seems to depend on where they are grown. Boiled peanuts provide between .35mg and 1.28mg. Again, the variation seems to depend on where they were grown or the processing used to boil them.

Unlike what is found with berries, boiled peanuts have a higher concentration than raw ones. Peanut butter provides a very tiny amount. One would need to eat a whole cup to get a maximum of .13mg.

The concentration of the compound in grape and cranberry juice is similar. Scientists must use a different measuring system to test these beverages. Amounts are not recorded in mg/l, but in nmol/g. In other words, the concentration is much lower. These juices are considered a negligible source at best, although other health benefits are associated with their consumption.

Red wines are believed to be the best resveratrol sources, at least as far as the foods and beverages that people normally consume. Actually, the substance was first identified in a medicinal plant called Japanese knotweed. The concentration in the dried root is 187mg/kg.

The amount that is found in red wines varies. All of them contain some. Even white wines contain a small amount, but more than is found in juices.

In all of the studies that have been conducted concerning the benefits of resveratrol, concentrated supplements have been used. Not once have researchers fed grapes to a rat or used a peanut to see what effect it had on a developing cancer cell.

So, obviously, if we want the perceived health benefits, we need different resveratrol sources. That brings me to supplements.

There are some supplements on the market with a very high content, as much as 200mg per serving. A moderate amount, 20-50mg per day is a better choice, as long as the manufacturer includes an enteric coating.

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