The best food sources for resveratrol are red grapes and boiled peanuts. A cup of each contains between .24 and 1.28mg. A five ounce glass of Spanish red wine provides between .29 and 1.89mg.
The studies concerning the health benefits of the antioxidant were conducted using much higher quantities. Only dietary supplements can provide the ideal amount, but there’s a problem with bio-availability.
The digestive system has a negative affect on the nutrient. Researchers have found that drinking a glass of wine or taking an uncoated tablet does not greatly increase the amount that is present in the bloodstream. This is true of other nutrients, as well.
There are a couple of reasons that most health supplements don’t work as they are claimed to.
First, manufacturers use synthetic versions of naturally occurring vitamins and minerals, because they are cheaper. They don’t use enteric coatings to protect the nutrients from stomach acid, also because of the cost involved.
The better supplement manufacturers extract the nutrient from the best food sources for resveratrol, measure the potency of the raw ingredient, mix it with other important nutrients that are lacking in most diets and are particularly low in the bloodstreams of elderly people. Then they wrap the whole formula up in an easy to swallow tablet that reaches the upper intestine, before it dissolves.
There’s a vast difference in the quality control testing that supplement manufacturers use. Unless you know a lot about the company, buying supplements with confidence, is a hard thing to do. These days, even buying food with confidence is difficult.
Red grape skins are the best food sources for resveratrol, but if they are not organic, then there could be traces of herbicides, pesticides and other toxins on the grapes. Peanut butter contains small amounts of the nutrient, but many foods containing peanut butter were recently recalled, because they are believed to be responsible for a salmonella outbreak.
I shop at a store with a large selection of organic foods. They guarantee the quality of their food and do not use artificial additives in their store-brands.
I buy dietary supplements from a manufacture that tests each raw ingredient for purity and potency. They have higher standards than any other manufacture or trade group. They don’t use the synthetic form of vitamins.
They test each completed batch for quality and purity, before they ship to their customers. They guarantee satisfaction and the best value for the money. In this day and time, I believe that all manufacturers should have similar guarantees, but most don’t.
Including some of the best food sources for resveratrol in your daily diet is probably a good idea, but you must realize that it is simply not possible to get an effective amount through diet, alone.
That’s why I take a multi-nutritional supplement that includes 20mg of trans-resveratrol. That way, I know I’m getting enough, without overdoing it.
If you’re going to drink wine, because it is one of the best food sources for resveratrol, only one glass per day is recommended. Too much alcohol is bad for your health.
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