SelenoPrecise® references – a selection
Request a copy of a refence from Precise Ingredients ApS, remember to inform which A-number.
Various selenium preparations differ considerably in quality, and even among organic preparations the absorption may vary to a considerable extent. A Norwegian study showed that SelenoPrecise® was absorbed much more efficiently than selenium from a preparation allegedly containing selenocysteine [A-850].
Later studies have shown that organic selenium more effectively raised the blood level of selenium than inorganic selenite [A-186, A-1403]. A Danish trial comparing ten different selenium preparations found that selenium absorption from selenomethionine was higher than absorption from inorganic selenium and various selenium yeasts [A-281].
The specific SelenoPrecise® yeast has been
shown to contain a large proportion of selenomethionine
and provide an excellent absorption [A-7162]. In
a recent trial absorption from SelenoPrecise® selenium
yeast was even higher (p<0.001) than that obtained
with synthetic l-selenomethionine (A-6798).
A number
of different trials have shown significant effects
in elderly persons supplemented with selenium, compared
to persons supplemented with similar placebo [A-249,
A-262, A-350, A-675, A-726, A-976, A-979]. Moreover,
a placebo controlled trial has shown that Bio-Selenium+Zinc
( Pharma Nord),containing the SelenoPrecise® yeast,
improves mood in young, healthy subjects [A-3072].
This effect was not observed in a study with elderly
persons [A-7509].
A long term study suggested that 2 Bio-Selenium+Zinc(Pharma
Nord)/day was able to reduce the recurrence of new
colorectal adenomas by 50% after a previous resection
[A-5176].
Bio-Selenium+Zinc(Pharma Nord), containing SelenoPrecise® yeast,
has been certified not to contain substances on the
doping list [A-6633].
The SelenoPrecise® yeast has been well characterised
in studies with respect to absorption, speciation,
retention, excretion [A-6743, A-6791, A-6792, A-6798,
A-6809, A-7037, A-7162, A-7302] and safety [A-7258].
The selenium concentration in whole blood from the
Danish PRECISE Pilot trial was higher (p<0.001)
than that obtained with synthetic l-selenomethionine
(A-6798). SelenoPrecise® yeast has been used in
efficacy studies of lipids and thyroid hormones [A-7037],
and is currently beeing used in studies of cancer prevention
[A-7258, A-7265].