L Tyrosine capsule 500 mg per pill, review of benefits and side effects, use for alertness and mood disorders including depression
Tyrosine is not an essential
amino acid since tyrosine can be
made from the amino acid phenylalanine. Tyrosine can be converted into dopamine and norepinephrine. Supplementation with both tyrosine and phenylalanine leads to alertness
and arousal.
Phenylalanine and tyrosine are sometimes
prescribed as antidepressants, usually in combination with other nutrients and herbs that
have mood elevating properties. Some doctors also recommend these amino acids for appetite
control. Phenylalanine may trigger the release of an appetite-suppressing hormone in the
gut called cholecystokinin. Most individuals who take either of these amino acids notice
improved alertness, mental arousal, and mood, and slight loss in appetite.
A
combination of
ginger, cinnamon, green tea extract, spirulina, acetyl-l-carnitine, choline,
guggul, and several
other herbs and nutrients, as found in
Diet Rx, a very effective
herbal diet pill for weight
loss. Users of Diet Rx have lost several pounds within a week or two. Diet Rx
does not have tyrosine.
Tyrosine 500 mg,
Club Natural
Supplement Facts
L Tyrosine - 500 mg per capsule
If you plan to take tyrosine, limit your dose initially to a third or half a
capsule until you find out how tyrosine reacts in your system.
Click here to buy L tyrosine and Mind Power Rx
brain enhancer
Conversion of Tyrosine
Phenylalanine to Tyrosine to L Dopa to Norepinephrine to Epinephrine
L Tyrosine supplement Questions
Q.
I wanted to write to you about Tyrosine. I started taking 500 mgs.
of Tyrosine once a day, after about 2 months, I noticed that a lymph node began
to appear in my throat area, I discontinued using the Tyrosine, and the lymph
node went away. When my fibromyalgia symptoms reappeared after about 1 year. I
decided to try it again. I began the 500 mg dose again for another 2 months, and
then one morning I awoke to a swollen neck on the right side. After months of
tests to rule out everything from thyroid disease to Lymphoma, they could not
find anything. But I remembered that the Tyrosine had caused the lymph node from
before. Ever since then I discontinued it. Why would it seem like the Tyrosine
caused these symptoms? Would a smaller dose be more beneficial because when I
did use the Tyrosine, I did not suffer from any other symptoms, and it did help
me feel better.
A.
Hi this is interesting, this is the first we have heard of this connection
between tyrosine and lymph node enlargement.
Q. I have been taking 500mg a day of L-Tyrosine since
June 2006 in combination with 500 mg of Para Thyrolate, and vitamin B (as
prescribed by a nutritionist.) Also, I have high blood pressure and have been
taking hydrocholorathiazide for the past two years. On Friday December 22 I had
a Grand Mal Seizure followed by a second one 5 hours later. I have never had a
seizure before in my life and I am 36 years old. The day of the seizure I had
been feeling like I was coming down with a cold or flu and barely ate anything
all day. I have been reading up on the side effects of L-Tyrosine and realized
that I have been experiencing side-effects for quite some time; heart
palpitations
and what appeared to be mini panic attacks. Has L- Tyrosine ever been documented
to cause seizures? At the hospital they ran lots of tests and could not seem to
find anything wrong with me so the seizure remains unexplained.
A. Although we have not come across any published studies regarding
the role of l tyrosine on seizure inducement, we can not rule out the
possibility, that, in some people, it is possible that high doses of l tyrosine
could reduce the threshold for a seizure to occur. This is just speculation
since we have not seen actual research blaming l tyrosine supplement use and
seizure occurrence.
Q. Can one over-dose on 500 mg. L-Tyrosine on a daily
basis for one month or two? What side effects might be expected L-Tyrosine?
Thank you. I've learned so much from your website already.
A. Yes, tyrosine can cause heart rhythm problems.
Q. Is it safe to keep taking l tyrosine while on
prescribed Remeron medication?
A. Remeron is the product name for mirtazapine, an antidepressant
that became available in 1997. Remeron is used for moderate or severe
depression, for treating anxiety, motor retardation, and cognitive and sleep
disturbances associated with depression. Remeron has a tetracyclic chemical
structure that makes it different from other common antidepressants (SSRIs,
MAOIs, and tricyclics). While stimulating norepinephrine and serotonin release,
Remeron also blocks two specific serotonin receptors. When combining supplements
and medications, potential side effects are mostly dependent on the dosage used
and the person taking the supplement. Many factors are involved and what works
for one person may not work for another. A low tyrosine dosage may cause no side
effects, but a higher one could.
Q. Can L Tyrosine can be used in place of or in
addition to Carbidopa for Parkinson's disease?
A. L Tyrosine is not an effective supplement for those with
Parkinson's disease. We have no experience using tyrosine as an add on to
Carbidopa, so we don't know.
Q. Tyrosine even at 1200 mg doesn't do much for me
(minor concentration boost) and I find that it puts more of a lid on my
functioning if I take it for more then a day or two at a time, not to mention it
only seems to help for about 2 hours. N-Acetyl Tyrosine has been said to be more
potent (what dosage of regular Tyrosine compared to the Acetyl version) and
marketing for it says that it is more stable, does that mean that it will stay
in the blood stream longer?
A. We have not seen scientific comparisons between acetyl tyrosine
and regular tyrosine, but the dosage of acetyl tyrosine may be a third or
quarter of the tyrosine dosage in many people. We don't find tyrosine to be as
good a mind booster as some of the other supplements.
Q. I have often thought that I have hypothyroidism
because it runs in my family. I have a lot of the symptoms too. So, I took L
Tyrosine for a couple of days and I started getting hot flashes. So I stopped
but the hot flashes continued and now it has been over 2 weeks. I was supposed
to start menstruating around the same time but it hasn't happened yet. I'm
wondering if I kick started my body into menopause by speeding up my thyroid.
Have you heard of anything like that before? And, if so, should I start up the L
Tyrosine again in smaller doses for the hypothyroid symptoms?
A. Tyrosine can elevate body temperature but this should go away
within a day or two or a few days after stopping it. We can't make
recommendations whether to restart or not take the l tyrosine supplement since
that is a decision you and your doctor would need to make.
Q. I'm a little confused about which neurotransmitter
is most directly affected by L-tyrosine, norepinephrine or dopamine? I guess I'm
wondering if mimics something like Effexor or Paxil more closely? And, have you
heard any reports of L-Tyrosine causing fatigue or sedation?
A. Taking a L tyrosine supplement causes alertness. L tyrosine
converts to dopamine but it can convert to several other substances. Taking a L
tyrosine supplement is not a reliable or efficient way to provide dopamine.
5-HTP mimics Paxil more closely.
Q. I continue to learn from
Mind Boosters book. It
is the one source that I continually return to when exploring nutritional approaches. My
question concerns Tyrosine. I have recently begun taking Acetyl L-Tyrosine, one 300 mg.
tablet in the morning. It seems to increase energy, and even give a little boost in the
area of verbal fluency (an area that I am very interested in improving). I seem to
"feel like talking" more than I normally would, and the words seem to come a
little more easily. However...I'm having a lot of trouble sleeping, even with this small
(I think) dosage, I seem to have a "wired" feeling. I would hate to give up the
benefits of tyrosine.
A. 300 mg of acetyl-tyrosine is actually, in
our opinion, a
high dose. Acetyl-tyrosine is probably much more active that tyrosine by itself. The
alertness it produces does cause
insomnia. A lower dosage may reduce the side effects.
Q. I have read alot on the site about the cautions of 5-HTP and
would like to ask about whether there are
any risks of using L-Tyrosine in the long-term. For me, this supplement really helps with
my mood but I
would like to know whether the amino acid is safe for daily consumption at a high dose(12
grams). I do not
experiences any side-effects from this amino acid and have not read any reports of toxicity
ever occurring
from its use.
A. Twelve grams of tyrosine is a very high dose. Side effects
could include irritability, anxiety, heart irregularities and perhaps over the
long run could have a pro oxidant effect on certain brain cells, but this is just my
hypothesis. Tyrosine seems to be more effective in those whose depression is due to low
dopamine levels. It's probably best to not use one particular nutrient to treat depression
for prolonged periods but to alternate different ones such as St. John's wort, SAMe,
5-HTP, etc.
Q. I have mild depression and depersonalisation
and had to start St Johns wort which caused me a lot of arrythmias and feelings
of mania, restlessness-at least now the symptoms are gone. I had to cut them
down and my depression got much worse but now I am thinking to get some
l-tyrosine-would you say 250 mg could possibly help me? I am also taking 500 mg
l-lysine which calms me down. Do you think their combo is a bad idea?
A. We can't predict any person's
response to supplements. L Tyrosine may help some people with depression, but
there are other supplements that could also help such as SAM-e and 5-HTP. It is
important to use low dosages since these supplements can have side effects when
taken in high dosages. We are not aware of any bad interaction between lysine
and tyrosine supplements.
Q. I have a question about l-tyrosine. There is a
tanning pill called pro tan e-z caplets with 1000mg of l-tyrosine in them. Could
you tell me (before I decide to make my purchase of them) if this is a safe
dose? It says it is ephreda free also. I would like a professional opinion
before my l tyrosine purchase. That way I can decide if pro tan e-z caplets is a
good purchase as a tanning pill.
A. L-tyrosine, in dosage greater than
300 or 500 mg, may, in some people, cause heart rhythm problems, anxiety, and
restlessness. We have not seen any evidence that taking a tyrosine supplement
helps with tanning. You may wish to ask the company selling this product to show
scientific papers that their product enhances tanning and does so safely.
Q. Antidepressants have induced anhedonia. Should
I take tyrosine pills to correct the anhedonia?
A. See the page on depression for ideas. We can't advice whether
you should or should not take tyrosine or any supplement.
Q. I suffer from severe M.E. and have a border
line thyroid function test and low DHEA. I felt better at first on the natural
thyroid Westhroid which my doctor prescribed but then started with palpitations
and pain at the back of my neck at night and some strange sensations in my
chest. I heard about Thyrosine and after surfing the web read many sites talking
about thyrosine and tyrosine. My question to you is are these two substances the
same thing? I want to know if Thyrosine and tyrosine are one and the same first.
A. We had not heard of thyrosine before, but a search on the
internet shows it is the name of a product that has many different ingredients.
Therefore, Thyrosine and tyrosine are not the same thing.
Q. Are there concerns to take L-Tyrosine and Kelp
- when taking Amour or Synthroid? When I discontinued L- Tyrosine or
L-Phenylalanine) and Kelp i felt sluggish. Does L-Phenylalanine have the same
interactions and/or concerns as L- Tyrosine and Kelp when taking Amour or
Synthroid ?
A. It depends on the dosage used and your overall health and
function of thyroid gland. Phenylalanine and tyrosine pills have a similar
effect.
Q. Are Sam-e, L-Tyrosine, L-Phenylalanine, L Tryptophan, habit forming?
A. There is no evidence that these supplements are habit forming.
Q. Q. I read
info for brain production of dopamine for obesity, specifically over eating on a
medical doctor's website. "Nutritional supplements can have a positive effect on
brain dopamine levels and help with focus and energy. I often have my patients
take a combination of of tyrosine (500-1,500 milligrams two to three a day), OPC
grape seed or pine bark (1 milligram per pound of body weight) and gingko biloba
(60-120 milligrams twice a day). These supplements help increase dopamine and
blood flow in the brain and many of my patients report that they help with
energy, focus and impulse control." Is N-Acetyl Tyrosine better than L-tyrosine?
A. Some people prefer tyrosine others prefer N acetyl tyrosine. It
is best, when combining different medications or supplements, to first learn how
each one works for you by itself in order to prevent potential side effects with
the combinations.
Q. I wanted to inform you that I took a
yohimbe bark
supplement in the evening. That morning I had taken 500 mg of a tyrosine pill.
Soon after I took the herb, I noticed rapid heart beat. I had not had this
effect as much with the tyrosine supplement alone.
Q. I've been experimenting with different vitamins,
minerals, and herbs for about 10 years now to avoid synthetic medications, and I
seem to have found a combination that works for me. One of the supplements I
take is tyrosine, and I've been reading a lot lately that lower doses such as
under 300mg are probably better. I take 1000 mg a day (and have been for years
now) with short breaks of a few days once every month or two, and I've never had
a problem with it. It is when I stop taking it for longer than about a week that
I have what I call withdrawals, and start getting many of the symptoms that
people report when they take too much of it, along with depression, OCD, and
either insomnia or sleeping too much. I also take 500mg of taurine, 100mg of
5-HTP, 200 mcg of chromium picolinate, 1000mg of Omega-3, small amounts of
ginkgo and DMAE, a good B-complex, and B-12. These are to help with bipolar,
symptoms of ADD, such as poor memory, poor attention span, and feeling "foggy" (debilitatingly
so), and to help with symptoms of hypoglycemia. My moods remain consistently
stable when I maintain this regimen, I feel comfortably alert, my memory is
better, and I don't have any issues with low blood-sugar levels. I'm writing
because I'm curious about a few things, and if you're able to answer any of
these questions I'd be most grateful! Am I taking too much tyrosine, even though
anything less than 1000mg a day doesn't seem to do much of anything for me? I
know each person is different, but I'm wondering if there's an amount that is
too much, and if there's a drawback to taking it for extended periods of time,
such as years. Also, why in the world would I have the opposite reaction to
other people? Is that even heard of? And if you happen to know if this
combination of supplements is harmful in any way, I would love to find that out
too.
A. Each person's body chemistry is different and therefore one
has to find out through trial and error which supplements and in what dosages
and combinations are most helpful. Long term studies with tyrosine supplements
in terms of treatment for many months or years have not been done and therefore
it is difficult to predict what kind of potential side effects may occur. Taking
breaks from supplements certainly reduces the risk of the adverse effects.
People do have quite varied effects to the same supplement or medications,
including caffeine. Some people are able to drink coffee at night and sleep well
whereas for most others caffeine will keep them awake.
Q. Thank you so much for writing back. This
information is helpful for my peace of mind! Funny you should mention caffeine -
I'm one of those people who can sleep fine after consuming it. I will continue
to "listen" to my body, and try to stay updated on research as I always have.
I am interested in a product Mind Power Rx with Bacopa,
one of the ingredient is tyrosine - I have/ had cancer, is it OK to to take a
supplement that contains tyrosine.
The amount of tyrosine is small and we have not seen any human studies
with such supplements to indicate any issues with cancer.
I am a 53 year old Menopausal woman with Hashimoto disease and fibromyalgia. I take Synthroid. My TSH is therapeutic. However, I have fuzzy brain and a low grade depression. I also have terrible aches everywhere. I sleep terribly, between the aches and pains and hot flashes I’m fairly miserable. I am also post adenoid cystic cancer parotid gland 5yrs survival. My question is I have read about both 5-HTP and tyrosine as possible supplements could one of them help? Would they interfere with the Synthroid? I’m particularly sensitive to meds and generally start off with the lowest of all possible doses. I would appreciate any suggestion you have as I would very much like to enjoy this time in my life…I’ve already been reminded how short it can be.
I have been taking Neuroreplete supplements for about
one month for depression. The doses of 5- htp and tyrosine are much higher than
other websites advise to take. I have coronary artery disease; % 50 LAD
obstruction. Dr. Hinz says that Neuroreplete is very safe and I can securely
take them. I am on level 3 now. So, I take about 900 mg of 5- htp and high
amounts of tyrosine. Do you think that Neuroreplete may be dangerous for me;
should I stop it ? I am frightened after reading advices on 5- htp and tyrosine
in terms of using lower dosages.
This is a decision you and your physician have to make.
I recently began taking L-Tyrosine for my depression
and found your website and information extremely helpful. I was wondering how
necessary it was to take B6 and copper for absorption. I am also taking Flax
Oil, Omega 3's, Green Tea and St. John's wort. Thank you for your time and
consideration.
B6 pills and copper are not necessary to take as supplements
in order for tyrosine pills to be effective. However one has to be careful
mixing too many supplements due to excess energy, alertness, rapid heart rhythm
and insomnia.
I'm wondering about the safety of l-tyrosine for
nursing mothers. My daughter is still nursing her 9 month old son and is
interested in trying this supplement for help with ADD. She is attempting to
continue her education, but is fearful that her ADD will interfere with this
pursuit.
We have not seen such studies regarding the use of this amino
acid while nursing. If taken occasionally
it should be safe for the child but it is difficult to give a precise answer
without studies being published.
About 15 years ago a psychiatrist prescribed a 500
mg dose of l-tyrosine to me for assistance with insomnia – it worked very well
though gave me quite vivid dreams (but not nightmares). Over the years, I have
gone back to L-Tyrosine as a sleep aid because it is not only not heavy handed
but actually helps me feel better in the morning – not unlike the descriptions
of 5 HTP. I have always wondered a) is L-Tyrosine used or suggested as a sleep
aid in general (I have rarely ever seen that in my reading on the subject) and
b) are the vivid dreams (others I have suggested it to have experienced similar
vivid dreams) a by-product of the tyrosine?
Tyrosine is more likely to cause insomnia rather than help
with sleep. Vivid dreams have been mentioned by others.
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