DHEA
Dosing and Safety Precautions
Properly managed DHEA therapy can be useful for most older
men and women to increase energy, vitality and to foster an
overall youthful feeling. However, there are guidelines that
should be followed for safe long-term use of DHEA.
When taking oral supplements of DHEA, it is important that
antioxidants are available to the liver because DHEA can promote
free radicals in liver cells. Animal studies have shown that
extremely high doses (from 2000 to 10,000 mg DHEA daily in
human terms) caused liver damage in mice and rats. When antioxidants
were given along with the DHEA, liver damage did not occur
despite the massive doses of DHEA being administered to these
animals
Alpha lipoic acid, vitamin E and N-acetyl- cysteine (NAC)
are antioxidants that have been shown to be especially effective
in suppressing free radicals in the liver.
Most human studies use a daily dose of 50 mg, and this is
the typical daily dose the majority of people use to restore
serum DHEA to youthful levels. DHEA can be taken with or without
food, though some believe that fat helps DHEA to assimilate
better. Some people absorb DHEA better by taking it 20 to
30 minutes before meals.
A
DHEA-s blood test should be taken three to six weeks after
beginning DHEA therapy to help determine optimal dosing.
The standard blood test to evaluate DHEA status is one that
measures DHEA-s (sulfate). The DHEA-s is calculated in micrograms
per deciliter (mcg/dL) of blood.
The youthful ranges of DHEAS are as follows:
| Men |
Women |
| 400
to 560 |
350
to 430 |
Chronic DHEA deficiency is a risk factor for developing the
degenerative diseases of aging according to the preponderance
of evidence existing in the scientific literature.
Men
Before
initiating DHEA therapy, men should know their serum PSA (prostate
specific antigen) level and have passed a digital rectal exam.
We have previously recommended that men with prostate cancer
should avoid DHEA. Our concern is that in some men, DHEA may
convert into testosterone and other growth factors that could
cause existing prostate cancer cells to propagate. In some
men, however, DHEA will mildly elevate estrogen levels, which
would theoretically be good for those with prostate cancer
since estrogen is known to help suppress prostate cancer cell
growth.
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