Re: Re: Fw: [CR] Methionine restriction like CR?

[Guest guest]

No, there are plenty of examples. All of the fat soluble vitamins (A,D, etc), even anti-oxidants like selenium, are bad in excess.I don''t  have the link handy but recall an old Canadian government website that listed upper limits. I couldn't find that website this morning (easily).  Just like requirements are variable between individuals, upper limits probably also vary from person to person.JROn Aug 26, 2007, at 7:10 AM, Rodney wrote:Hi folks:It seems to me that in CR circles there is a widespread belief that, within our restricted caloric budgets, we should maximize our intakes of all essential nutrients.The methionine issue makes me wonder how many other 'essential nutrients' there are that also should be restricted to no more than the amount we absolutely need.Is it likely methionine is the only one?Rodney.>> > -

[Guest guest]

I quote:

Plants take up selenium from the soil and propagate it through the food

chain. Brazil nuts <http://www.cancerdecisions.com/121001.html>, in

particular, like selenium. One unshelled Brazil nut (one you have to

crack open yourself) contains an average of 100 micrograms (mcg) of

selenium per nut. (Already shelled Brazil nuts have 12 to 25 mcg of

selenium per nut.) Phytoplankton, the " plants of the sea, " extract and

concentrate the even more minute amounts of selenium in ocean water and

provide this needed element to fish. Selenium was identified as an

essential trace element for mammals in 1957, and investigators now have

determined <http://www.proteinscience.org/cgi/reprint/12/2/372> that the

cells of all organisms, bacterial, animal, and non-animal, need selenium.

from an interesting article on selenium from

http://www.lewrockwell.com/miller/miller24.html

In particular my question is:

Does an already shelled brazil nut lose 75% of its selenium?

Positive Dennis