Posted on 07/07/2019 9:01:17 AM PDT by ConservativeMind
UNIVERSITY PARK, Pa. — Mushrooms contain unusually high amounts of two antioxidants that some scientists suggest could help fight aging and bolster health, according to a team of Penn State researchers.
In a study, researchers found that mushrooms have high amounts of ergothioneine and glutathione, both important antioxidants, said Robert Beelman, professor emeritus of food science and director of the Penn State Center for Plant and Mushroom Products for Health. He added that the researchers also found that the amounts of the two compounds varied greatly between mushroom species.
"What we found is that, without a doubt, mushrooms are the highest dietary source of these two antioxidants taken together, and that some types are really packed with both of them," said Beelman.
Beelman said that when the body uses food to produce energy, it also causes oxidative stress because some free radicals are produced. Free radicals are oxygen atoms with unpaired electrons that cause damage to cells, proteins and even DNA as these highly reactive atoms travel through the body seeking to pair up with other electrons.
Replenishing antioxidants in the body, then, may help protect against this oxidative stress.
"There's a theory — the free radical theory of aging — that's been around for a long time that says when we oxidize our food to produce energy there's a number of free radicals that are produced that are side products of that action and many of these are quite toxic," said Beelman. "The body has mechanisms to control most of them, including ergothioneine and glutathione, but eventually enough accrue to cause damage, which has been associated with many of the diseases of aging, like cancer, coronary heart disease and Alzheimer's."
According to the researchers, who report their findings in a recent issue of Food Chemistry, the amounts of ergothioneine and glutathione in mushrooms vary by species with the porcini species, a wild variety, containing the highest amount of the two compounds among the 13 species tested.
"We found that the porcini has the highest, by far, of any we tested," said Beelman. "This species is really popular in Italy where searching for it has become a national pastime."
The more common mushroom types, like the white button, had less of the antioxidants, but had higher amounts than most other foods, Beelman said.
The amount of ergothioneine and glutathione also appear to be correlated in mushrooms, the researchers said. Mushrooms that are high in glutathione are also high in ergothioneine, for example.
Cooking mushrooms does not seem to significantly affect the compounds, Beelman said.
"Ergothioneine is very heat stable," said Beelman.
Beelman said that future research may look at any role that ergothioneine and glutathione have in decreasing the likelihood of neurodegenerative diseases, such as Parkinson's disease and Alzheimer's disease.
"It's preliminary, but you can see that countries that have more ergothioneine in their diets, countries like France and Italy, also have lower incidences of neurodegenerative diseases, while people in countries like the United States, which has low amounts of ergothioneine in the diet, have a higher probability of diseases like Parkinson's Disease and Alzheimer's," said Beelman. "Now, whether that's just a correlation or causative, we don't know. But, it's something to look into, especially because the difference between the countries with low rates of neurodegenerative diseases is about 3 milligrams per day, which is about five button mushrooms each day."
Beelman worked with Michael D. Kalaras, postdoctoral assistant in food sciences; John P. Richie, professor of public health sciences and pharmacology; and Ana Calcagnotto, research assistant in public health sciences.
Brown mushrooms tend to have more of these compounds (up to 20X more)
Ping of interest.
As long as you don’t get the kind that put you on the liver transplant list.
Eat the wrong mushroom- and it really will have an ‘anti-aging’ effect-
You can buy wooden dowels that have been inoculated with mycelium for 'Oyster Mushrooms'.
Then you go out to your North 40, drill a few holes, bang them in, cover them with paraffin and wait. For the next 6 years or so you'll get delicious mushrooms after every rain!
You can get them on eBay.
Yes, those!
not poo pooing the articles you linked to- but i noticed that it’s not just taking the metforming that might add life age- but the articles states “AND lifestyle changes”- so how do we know it isn’t simply the lifestyle changes that added years to the people’s lives? Lifestyle changes can and does have dramatic changes to people’s health all by itself-
Are there studies that show metformin alone- without lifestyle changes, can increase life expectancy?
I can't answer you questions, I'm a retired chip-maker.
There are studies that say, on average, people who do not have type two diabetes live eight years longer than people who do have type two diabetes.
Now, it has been recorded and data mined that people who have type two diabetes and take Metformin live longer than people who do not have type two diabetes.
Numerous large studies have begun to answer many questions.
I take Metformin twice a day.
I take tinctures of Cordyceps and Lions mane daily.
Amen. Some will stop you aging, pronto.
Because you should be here....
Walking around looking for them can be a real workout.
Thanks for posting.
Wow. Those are pretty cheap.
Shitakes are good, but I like Portobella....
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