Acetyl
l carnitine
300 mg and 500 mg capsules - Acetyl-Carnitine side effects
Mind Power Rx with
acetyl l carnitine
formulated by Ray Sahelian, M.D.

Why buy all the individual herbs and nutrients separately -- at great expense -- when you can buy this excellent combination? The herbs in Mind Power Rx include: Ashwagandha, Bacopa, Ginkgo biloba, Fo-Ti, Ginseng, Mucuna pruriens, and Reishi. The nutrients and vitamins in Mind Power Rx include Acetyl l carnitine, Carnitine, Carnosine, Choline, DMAE, Inositol, Methylcobalamin, Pantothenic acid, Trimethylglycine, Tyrosine, and Vinpocetine. .
Acetyl l carnitine
Short term effects
The mind boosting effect of acetyl l carnitine is often noticed within a
few hours, or even within an hour. Most people report feeling mentally
sharper, having more focus and being more alert. Some find a mild mood
enhancement. acetyl l carnitine may be used as an overall mind booster. The typical dosage is 250 mg
once a day or a few times a week. Side effects of overstimulation may occur at dosages greater
than 500 mg.
Acetyl l carnitine
300 mg for brain
enhancement, mood and
cognitive support

Acetyl l Carnitine Supplement facts
acetyl l carnitine - 300 mg
Click acetyl l carnitine-300 on discount to buy or to subscribe to a free newsletter
Sign up for a FREE
Supplement
Research Update newsletter. Twice a month we email a brief abstract
of several studies on supplements and natural medicine topics, and their practical interpretation by Ray Sahelian, M.D.
Testimonial received by email
Hi- I wanted to extend my thanks for your supplements! I am a
51-year -old physician assistant who works in a busy family practice. I recently
tried your alpha-lipoic acid and acetyl-l carnitine supplements. I felt better
the FIRST day, so my husband tried them and he did too! I must admit that this
changes my perspective on nutraceuticals- from here on out, I will not hesitate
to recommend that my patients visit your site!
Those who take carnitine pills notice an
increase in physical energy levels, but not as much mental energy. acetyl l
carnitine has a significantly more
immediate and noticeable mental effect than carnitine.
Acetyl l carnitine Research shows:
In aging rats, chronic administration of acetyl l carnitine
increases cholinergic synaptic transmission and consequently enhances learning capacity.
The memory of aging rats is rejuvenated by giving them a combination of acetylc-l-arnitine
and lipoic acid.
Acetyl-l-carnitine and propionyl-carnitine
in chronic fatigue syndrome
Exploratory open label, randomized study of acetyl- and
propionyl-carnitine in chronic fatigue
syndrome.
Psychosom Med. 2004 Mar-Apr;66(2):276-82.
We compared the effects of acetyl-carnitine, propionyl-carnitine
and both compounds on the symptoms of chronic fatigue syndrome (CFS).
In an open, randomized fashion we compared 2 g/d acetyl-L-carnitine, 2 g/d
propionyl-L-carnitine, and its combination in 3 groups of 30 CFS patients
during 24 weeks. Effects were rated by clinical global impression of change.
Secondary endpoints were the Multidimensional Fatigue Inventory, McGill Pain
Questionnaire, and the Stroop attention concentration test. Scores were
assessed 8 weeks before treatment; at randomization; after 8, 16, and 24 weeks
of treatment; and 2 weeks later. Clinical global impression of change
after treatment showed considerable improvement in 59% of the patients in the
acetyl-carnitine group and 63% in the propionyl-carnitine group, but less in the
acetyl-carnitine plus propionyl-carnitine group (37%). Acetyl-carnitine
significantly improved mental fatigue (p =.015) and propionylcarnitine
improved general fatigue (p =.004). Attention concentration improved in all
groups, whereas pain complaints did not decrease in any group. Two weeks after
treatment, worsening of fatigue was experienced by 52%, 50%, and 37% in the
acetyl-carnitine, propionyl-carnitine, and combined group, respectively. In the
acetyl-carnitine group, but not in the other groups, the changes in plasma
carnitine levels correlated with clinical improvement.
Acetyl-carnitine and propionyl-carnitine showed beneficial effect on fatigue and
attention concentration. Less improvement was found by the combined treatment.
Acetyl-carnitine had main effect on mental fatigue and propionyl--carnitine on
general fatigue.
Acetyl l carnitine for
fibromyalgia
Double-blind, multicenter trial comparing acetyl l-carnitine with placebo in
the treatment of fibromyalgia patients.
Clin Exp Rheumatol. 2007 Mar-April. Rheumatology Unit, University of
Verona, Italy.
In this multicenter randomized clinical trial we evaluated the efficacy of
acetyl L carnitine in patients with overt fibromyalgia. One hundred and two
patients meeting the American College of Rheumatology criteria for FMS were
randomized into the study. The treatment consisted of 2 capsules/day of 500 mg
acetyl L carnitine or placebo plus one intramuscular injection of either 500
mg acetyl L carnitine or placebo for 2 weeks. During the following 8 weeks the
patients took 3 capsules daily containing either 500 mg acetyl L carnitine or
placebo. The "total myalgic score" and the number of positive tender points
declined significantly and equally in both groups until the 6th week of
treatment. At the 10th week both parameters remained unchanged in the placebo
group but they continued to improve in the acetyl L carnitine group with a
statistically significant between-group difference. A statistically
significant between-group difference was observed for depression and musculoskeletal
pain. Treatment was well-tolerated. These results indicate that acetyl
L
carnitine may be of benefit in patients with fibromyalgia, providing
improvement in pain as well as the general and mental health of these
patients.
Acetyl l carnitine and
priopinyl l carnitine benefit for sexual health
Carnitine versus androgen administration in the treatment of sexual
dysfunction, depressed mood, and fatigue associated with male aging.
Urology. 2004 Apr;63(4):641-6.
To compare testosterone undecanoate versus propionyl-L carnitine plus
acetyl-L carnitine and placebo in the treatment of male aging symptoms.
A total of older 120 patients were randomized into three groups. Group 1 was given testosterone undecanoate 160 mg/day, the second group was given propionyl-L-carnitine 2 g/day
plus acetyl-L-carnitine 2 g/day for 6 months. The assessed variables were total
prostate-specific antigen, prostate volume, peak systolic velocity,
end-diastolic velocity, resistive index of cavernosal penile arteries, nocturnal
penile tumescence, total and free testosterone, prolactin, luteinizing hormone,
International Index of Erectile Function score, Depression Melancholia Scale
score, fatigue scale score, and incidence of side effects. Testosterone
and carnitines significantly improved the peak systolic velocity, end-diastolic
velocity, resistive index, nocturnal penile tumescence, International Index of
Erectile Function score, Depression Melancholia Scale score, and fatigue scale
score. Acetyl-carnitine and priopionyl-lcarnitine proved significantly more active than testosterone in
improving nocturnal penile tumescence and International Index of Erectile
Function score. Testosterone significantly increased the prostate volume and
free and total testosterone levels and significantly lowered serum luteinizing
hormone; carnitines did not. No drug significantly modified prostate-specific
antigen or prolactin. Carnitines and testosterone proved effective for as long
as they were administered, with suspension provoking a reversal to baseline
values. Only the group 1 prostate volume proved significantly greater than
baseline 6 months after testosterone suspension. Placebo administration proved
ineffective. Negligible side effects emerged. Testosterone and,
especially, carnitines proved to be active drugs for the therapy of symptoms
associated with male aging.
Acetyl-l carnitine side effects
Side effects of acetyl-l-carnitine include restlessness,
nausea and overstimulation. These acetyl-l-carnitine side effects usually
occur at dosages above 500 mg. Insomnia is an acetyl-l carnitine side
effect if the dosage is above 1500 mg.
Acetyl- Carnitine questions
Q. The "in-house" doctor over at vitacost.com recommends 1000 to 2000mg of
acetyl-L carnitine a day. Dr. Sahelian, who by the way I consider the most
credible and honest on the web, says much less. I have been taking 1000mg a
day because my father has been diagnosed with Alzheimer's disease, and I am
concerned about my genetic risks. But my sleep seems to be much shallower
since I upped my dosage. Could the acetyl-L carnitine 1000mg be a possible
cause of my less-deep sleep patterns? Also, is the doc over at vitacost ( his
name is Allen Josephs ) being irresponsible in recommending such a high daily
dose? Thank You for the best site on the web!
A. We prefer not to comment on information being provided by other
websites except in defense if they criticize us. Our goal is to provide honest
and up to date information on natural supplements, and let the reader decide
the best option for them. We have found that high doses of acetyl-l-carnitine
to interfere with sleep which is not a good thing if one wants to be
healthier.
Q. I read somewhere possibly about the original
experiments carried out by Bruce Ames that it is best to combine the acetyl-l-carnitine
with alpha lipoic acid because of the possibily of 'oxidative stress' or some
such phrase if the acetyl-l-carnitine was just used on its own. Is this true
ie better to take the combination
A. There are no human studies that point out whether it is better
to combine acetyl-l-carnitine and alpha lipoic acid, and if so, what the ideal
dose would be. Many people are taking too high doses of these supplements.
There are countless herbs and nutrients that act as antioxidants, and science
does not have the answer yet on which to take and in what dosages and in what
combinations.
Q. Should acetyl l-carnitine be taken in
conjunction with slpha lipoic acid since the latter helps transports the
former into the mitochondria ? If so, to my knowledge, since one is water
soluble and the other fat soluble should they be taken seperately. Also,
should acety l-carnitine be taken on an empty stomach while alpha lipoic acid
with food to prevent stomach upset?
A. Acetyl-l-Carnitine 300 mg is a potent mind booster and antioxidant. Most
people find one capsule is the right dose while some people may find the
occasional use of 2 capsules helpful. Acetylcarnitine increases alertness
and focus. It would be best not to take a capsule with other brain
boosting supplements due to possible overstimulation. One option is to
alternate the use of acetylcarnitine one day with Mind Power Rx the next
day, or alternate with other brain supplements such as DMAE, choline,
ginkgo, etc. Doses above 500 mg may, in some people, lead to
overstimulation, insomnia, and nausea. For long term use one capsule 3
times a week with a week off each month is a good option. Acetylcarnitne
can be taken with small doses of other supplements such as vitamins E and
C, and it can be used together with fish oils. Many products on the market
have acetylcarnitine together with alpha lipoic acid and are promoted for
antiaging purposes. Be careful using high amounts of these combinations
since they can keep you awake at night, and shallow sleep is certainly not
helpful for longevity purposes. I would not recommend taking more than 10
to 30 mg of R lipoic acid or 20 to 60 mg of regular alpha lipoic acid when
combined with 300 mg of acetylcarnitine. There is no human evidence that
the combination of these two nutrients is better than either alone. Even if
the combination is preferable, we have no idea of the ideal dosage, and it
could be vastly different between different people. Both acetyl-l-carnitine
and alpha lipoic acid can be taken with food to reduce nausea, but if one
wishes to feel the mental stimulating effects more clearly, they can be taken
on an empty stomach.
Q. I have recently been reading the studies concerning
acetyl-l-carnitine with both human and rat subjects and nerve trauma with a
great deal of interest. Seven years ago I had major surgery on my right lung
where several intracostal nerves were severed. I have been living with severe
burning pain since then. I have been lucky enough to have switched from a
neurologist who only wanted to treat my symptoms with drugs back to my primary
physician who is much more understanding about nutritional supplements in
healing. I am intending to begin therapeutic dosage and was wondering how long
it takes before a reduction in pain is perceived. My doctor and I think the
nerves are
finally regenerating, but I am still in a great deal of pain and would like to
actually help it heal instead of just taking pain meds. I was very interested
in the reports that acetyl-l-carnitine helped a great deal with pain in
addition to healing. None of the studies noted how long acetyl-l-carnitine
took, though. Would you have any information on that?
A. Too little research is available with acetyl-l-carnitine and
nerve health or pain reduction. As with many supplements, each person would
need to try for themselves to see if any benefits occur. Plus, each person and
each condition is different, hence it is difficult to make even any kind of
generalization.
Q. For about 6 years, I have been taking 500 mg of
acetyl L carnitine mostly every day with my other multivitamin, calcium, omega
fatty acids (wild salmon oil), COQ10, etc. I am 54, healthy, not overweight,
with no known health problems and I exercise regularly. In my mid teens and
until age 23, I took dilantin for seizures. I have not taken dilantin now for
30 years and have had no seizures in 30 years. At the time my family doctor
prescribed dilantin, he told my parents and me that he expected me to grow out
of this problem by the time I was in my 20s. And as I say, I have not had a
seizure in 30 years, nor have I had to take any prescription medicine in 30
years. I have just been reading today that a possible side effect of taking
acetyl L Carnitine could be seizures. I was surprised, misthinking in my
research that only Carnitine might cause such (which I do not take). (I
honestly do not expect my family doctor to know the wonderful value of acetyl
L carnitine - even though she is a good physician. Many doctors still do not
have a strong belief in some of the good vitamin supplements other than a
multivitamin and calcium. Do you have any comment on this?
A. We searched the medical literature and found this study on
rodents. We have not seen any reports in the medical literature regarding
seizures being triggered by acetyl-l-carnitine, but this does not mean it has
not occurred.
Transient seizure activity induced by acetylcarnitine.
Neuropharmacology. 1984 May.
Intracerebral injection of L-acetyl-l-carnitine in rats induced interictal and
ictal epileptic phenomena with immediate onset, lasting up to 4 hours.
Pretreatment with systemic atropine prevents all epileptiform phenomena. Local
injection of muscimol and THIP abolish ictal events, but not single spikes. L-carnitine
induced only ictal discharges with a latency of 40-90 min. Acetyl-l-carnitine
epileptogenic properties are probably related to muscarinic agonism. The
transition from interictal to ictal events may involve failure of GABAergic
mechanisms.
Q. I would like more information about the sources of
the ingredients. I understand that some things are made in a lab. I prefer
“natural” ingredients when available, but must avoid porcine and shell fish
sources. At the moment I am especially interested in this information for L-Carnitine
and Acetyl-L-Carnitine.Hi,
A. Acetyl l carnitine and carnitine are synthetically made in a
lab. For some nutrients there is not enough in natural sources to be able to
extract in sufficient quantities.