Carnitine information, benefit and side effects, information on supplements 250 mg and 500 mg
Carnitine, or L-carnitine, is a naturally occurring substance found in most cells of the body, particularly the brain and neural tissues, muscles, and heart. Carnitine, whose structure is similar to choline, is widely available in animal foods (meat, poultry, fish and dairy products), whereas plants have very small amounts. Most non-vegetarians consume about 100 to 300 mg of carnitine a day, and the body is able to synthesize this nutrient if dietary intake is inadequate. When ingested as a pill, carnitine is not able to cross the blood-brain barrier as well as its activated form acetyl-L-Carnitine. Acetyl-l-carnitine has a significantly more noticeable effect on the mind, such as alertness and clarity of thinking, than carnitine. Carnitine has antioxidant properties and helps you have more energy and stamina. If you are vegan or vegetarian, consider Vegetarian Supplements. Carnitine is not found in any significant amounts in fruits or vegetables.
What's the right dosage for carnitine?
Since each person has a unique biochemistry, dosage recommendations vary. We recommend
200 to 500 mg or less, unless a health care
provider believes you need more. Alternatively, carnitine could be taken at 500 mg a few days a week as
opposed to daily. If you take 500 mg daily for prolonged periods you may start
having trouble sleeping at night.
Buy L Carnitine 500 mg per capsule



Buy L
Carnitine 500 mg per capsule
Acetyl l carnitine 300 mg per capsule
Diet Rx with carnitine appetite suppressant
Mind Power Rx with carnitine brain booster
Benefits of Carnitine According to Studies
Diabetes
Effect of Oral L-Carnitine Administration on Insulin Sensitivity and
Lipid Profile in Type 2 Diabetes Mellitus Patients.
Exploratory open label, randomized study of acetyl- and
propionyl-carnitine in chronic fatigue
syndrome.
Vermeulen RC, Scholte HR. Research Center Amsterdam, Amsterdam,
Netherlands.
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 propionyl carnitine
improved general fatigue. 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.
L carnitine administration in elderly subjects with
rapid muscle fatigue: effect on body composition, lipid profile and fatigue.
Pistone G,. University of Catania, Catania,
Italy.
Drugs Aging. 2003;20(10):761-7.
L carnitine is an important contributor to cellular energy metabolism.
This study aims to evaluate the effects of carnitine supplementation on body
composition, lipid profile and fatigue in elderly subjects with rapid muscle
fatigue. This was a placebo-controlled, randomised, double-blind,
two-phase study. Eighty-four elderly subjects with onset of fatigue following
slight physical activity were recruited to the study. Prior to randomisation all
patients entered a 2-week normalisation phase where they were given an 'ad
libitum diet, according to the National Cholesterol Education Program (Step 2).
Subjects were asked to record their daily food intake every 2 days. Before the
30-day treatment phase, subjects were randomly assigned to two groups (matched
for male/female ratio, age and body mass index). One group received carnitine 2g
twice daily and the other placebo. Efficacy measures included
changes in total fat mass, total muscle mass, serum triglyceride, total
cholesterol, high-density lipoprotein-cholesterol (HDL-C), low-density
lipoprotein-cholesterol (LDL-C), apolipoprotein (apo)A1, and apoB levels. The
Wessely and Powell scale was used to evaluate physical and mental fatigue.
Subjects were assessed at the beginning and end of the study period. At
the end of the study, compared with placebo, the carnitine-treated patients
showed significant improvements in the following parameters: total fat mass,
total muscle mass, total cholesterol, LDL-C, HDL-C, triglycerides, apoA1, and apoB. Wessely and
Powell scores decreased significantly by 40% (physical fatigue) and 45% (mental
fatigue) in subjects taking carnitine, compared with 11% and 8%, respectively,
in the placebo group. No adverse events were reported in any treatment group.
Administration of carnitine to healthy elderly subjects resulted in
a reduction of total fat mass, an increase of total muscle mass, and appeared to
exert a favourable effect on fatigue and serum lipids.
Exercise and athletic performance
The effects of L-carnitine L-tartrate supplementation on hormonal
responses to resistance exercise and recovery.
Kraemer WJ. University of
Connecticut, Storrs, CT 06269, USA.
J Strength Cond Res. 2003 Aug;17(3):455-62.
The purpose of this investigation was to examine the influence of L-carnitine L-tartrate supplementation using a balanced, cross-over, placebo-controlled research
design on the anabolic hormone response (i.e., testosterone, insulin-like
growth factor-I, insulin-like growth factor-binding protein-3 [IGFBP-3], and immunofunctional and immunoreactive growth hormone [GHif and GHir]) to acute
resistance exercise. Ten healthy, recreationally weight-trained men
volunteered and were matched, and after 3 weeks of supplementation (2 g carnitine per
day), fasting morning blood samples were obtained on six consecutive days
(D1-D6). Subjects performed a squat protocol (5 sets of 15-20 repetitions) on
D2. During the squat protocol, blood samples were obtained before exercise and
0, 15, 30, 120, and 180 minutes postexercise. After a 1-week washout period,
subjects consumed the other supplement for a 3-week period, and the same
experimental protocol was repeated using the exact same procedures. Expected
exercise-induced increases in all of the hormones were observed for GHir, GHif,
IGFBP-3, and testosterone. Over the recovery period, carnitine reduced the amount of
exercise-induced muscle tissue damage, which was assessed via magnetic resonance
imaging scans of the thigh. carnitine supplementation significantly
increased IGFBP-3 concentrations prior to and at 30, 120, and 180 minutes after
acute exercise. No other direct effects of carnitine supplementation were observed on
the absolute concentrations of the hormones examined, but with more undamaged
tissue, a greater number of intact receptors would be available for hormonal
interactions. These data support the use of carnitine as a recovery supplement for
hypoxic exercise and lend further insights into the hormonal mechanisms that may
help to mediate quicker recovery.
Heart Failure
-- Those with heart failure may benefit from carnitine.
Kidney Dialysis -- Intravenous carnitine is an accepted pharmaceutical treatment for carnitine deficiency in
end-stage renal disease in patients undergoing dialysis.
Liver Cirrhosis
--
Treatment of patients with liver cirrhosis with the signs of
liver insufficiency is complex and seldom satisfactory. Carnitine, taking part
in liver lipid metabolism might be a potentially effective
nutrient. One study shows L-carnitine lowers the serum
ammonia concentration and improves lipid metabolism in patients with liver
cirrhosis. Carnitine may also play a beneficial role in the treatment of mild or
moderate hepatic encephalopathy.
Sexual Health -- Apparently carnitine is helpful in sexual enhancement.
Carnitine versus androgen administration in the
treatment of sexual dysfunction, depressed mood, and fatigue associated with
male aging.
Cavallini G, Caracciolo S, Vitali G et al. Urology. 2004;63:641-6.
To compare testosterone undecanoate versus propionyl-l carnitine plus
acetyl-l carnitine and placebo in the treatment of male aging symptoms.
A total of 120 patients were randomized into three groups. The mean
patient age was 66 years (range 60 to 74). 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. The third group was given a placebo (starch).
Drugs and placebo were given 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. The assessment was
performed at intervals before, during, and after therapy. RESULTS: Testosterone
and carnitine 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. Carnitine 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, carnitine proved to be active drugs for the therapy of symptoms associated with
male aging.
Sperm motility
Combined treatment with L-carnitine, a
popular dietary supplement, and acetyl-carnitine, a related chemical, appears to
improve sperm motility in men with fertility problems, according to a new study.
In the study, 60 infertile men between the ages of 20 and 40 years were randomly
selected to take a combination of L-carnitine and L-acetyl-carnitine or an
inactive "placebo" for 6 months. In the medical journal Fertility and Sterility,
researchers at the University of Rome led by Dr. Andrea Lenzi report that 2
months after the completion of therapy, men who took L-carnitine and L-acetyl-carnitine
had increases in sperm concentration, forward movement, and total movement. The
most significant improvements in sperm motility, both forward and total, were
observed in men who had the lowest levels of moving sperm when the study began.
The researchers note that four spontaneous pregnancies were achieved during the
study by men who had taken the combination therapy.
Thalassemia -- L-carnitine may be an effective substance for improving the
cardiac status of thalassemic patients.
Weight Loss
-- The combination of carnitine, choline, and caffeine has a mild effect on
weight loss.
By itself, carnitine is unlikely to produce significant weight loss, but when combined with other
nutrients it may be helpful.
What's the right dosage for Carnitine?
Since each person has a unique biochemistry, dosage recommendations vary. I
would recommend 500 mg or less, unless recommended by a health care
provider. Alternatively, carnitine could be taken at 500 mg a few days a week as
opposed to daily.
How Does Carnitine Work?
Carnitine and acetyl-l-carnitine play several important roles in the human
body, particularly in energy metabolism. These nutrients shuttle acetyl groups and fatty
acids into mitochondria for energy production. Without carnitine, fatty acids cannot
easily enter into mitochondria. The acetyl group of acetyl-l-carnitine is used to form
acetyl-CoA, the most important intermediary in the generation of energy from amino acids,
fats, and carbohydrates. Therefore, acetyl-l-carnitine serves as an energy reservoir of
acetyl groups and both acetyl-l-carnitine and carnitine help improve energy production.
Those who take carnitine pills often notice an increase in energy levels.
In addition to producing energy, these two nutrients remove toxic accumulations
of fatty acids from mitochondria, keeping these organelles healthy and functioning at
their best. Energy production in the mitochondria is not a perfect process and toxic
metabolites can often accumulate. Accumulation of these toxic metabolites and the
resulting oxidative damage is likely to contribute to aging of cells. A waste substance
called lipofuscin accumulates in cells as we age and perhaps adequate acetyl-l-carnitine
intake can help minimize this accumulation. A study in rats providing acetyl-l-carnitine from youth
showed this nutrient to decrease lipofuscin levels in their brain as they got old.
Therefore, it is theoretically possible that supplementation with carnitine or
acetyl-l-carnitine can slow the aging process.
L Carnitine 250 mg and 500 mg per capsule.
What's the right dosage?
Since each person has a unique biochemistry, dosage recommendations vary. We
would recommend 500 mg or less, unless recommended by a health care
provider. Alternatively,
l-carnitine could be taken at 500 mg a few days a week as
opposed to daily.
Carnitine Research studies
Combined treatment with L-carnitine, a
popular dietary supplement, and acetyl carnitine, a related chemical, appears to
improve sperm motility in men with fertility problems, according to a new study.
In the study, 60 infertile men between the ages of 20 and 40 years were randomly
selected to take a combination of L-carnitine and L-acetyl-carnitine or an
inactive "placebo" for 6 months. In the medical journal Fertility and Sterility,
researchers at the University of Rome led by Dr. Andrea Lenzi report that 2
months after the completion of therapy, men who took L-carnitine and L-acetyl
carnitine had increases in sperm concentration, forward movement, and total
movement. The most significant improvements in sperm motility, both forward and
total, were observed in men who had the lowest levels of moving sperm when the
study began. The researchers note that four spontaneous pregnancies were
achieved during the study by men who had taken the combination therapy.
Exploratory open label, randomized study of acetyl- and
propionyl-carnitine in chronic fatigue
syndrome.
Vermeulen RC, Scholte HR. Research Center Amsterdam, Amsterdam,
Netherlands.
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. 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.
Carnitine versus androgen administration in the
treatment of sexual dysfunction, depressed mood, and fatigue associated with
male aging.
Cavallini G, Caracciolo S, Vitali G et al. Urology. 2004;63:641-6.
To compare testosterone undecanoate versus propionyl-l-carnitine
plus acetyl-l-carnitine and placebo in the treatment of male aging symptoms.
A total of 120 patients were randomized into three groups. The mean
patient age was 66 years (range 60 to 74). 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. The third group was given a placebo (starch).
Drugs and placebo were given 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. The assessment was
performed at intervals before, during, and after therapy. Testosterone
and carnitine 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. Carnitine-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, carnitine proved to be active drugs for the therapy of symptoms associated with
male aging.
L carnitine administration in elderly subjects with
rapid muscle fatigue: effect on body composition, lipid profile and fatigue.
Pistone G,. University of Catania, Catania,
Italy.
Drugs Aging. 2003;20(10):761-7.
L carnitine is an important contributor to cellular energy metabolism.
This study aims to evaluate the effects of carnitine supplementation on body
composition, lipid profile and fatigue in elderly subjects with rapid muscle
fatigue. This was a placebo-controlled, randomised, double-blind,
two-phase study. Eighty-four elderly subjects with onset of fatigue following
slight physical activity were recruited to the study. Prior to randomisation all
patients entered a 2-week normalisation phase where they were given an 'ad
libitum diet, according to the National Cholesterol Education Program (Step 2).
Subjects were asked to record their daily food intake every 2 days. Before the
30-day treatment phase, subjects were randomly assigned to two groups (matched
for male/female ratio, age and body mass index). One group received carnitine 2g
twice daily (n = 42) and the other placebo (n = 42). Efficacy measures included
changes in total fat mass, total muscle mass, serum triglyceride, total
cholesterol, high-density lipoprotein-cholesterol (HDL-C), low-density
lipoprotein-cholesterol (LDL-C), apolipoprotein (apo)A1, and apoB levels. The
Wessely and Powell scale was used to evaluate physical and mental fatigue.
Subjects were assessed at the beginning and end of the study period. At
the end of the study, compared with placebo, the carnitine-treated patients
showed significant improvements in the following parameters: total fat mass,
total muscle mass, total cholesterol, LDL-C, HDL-C, triglycerides, apoA1, and apoB. Wessely and
Powell scores decreased significantly by 40% (physical fatigue) and 45% (mental
fatigue) in subjects taking carnitine, compared with 11% and 8%, respectively,
in the placebo group. No adverse events were reported in any treatment group.
Administration of carnitine to healthy elderly subjects resulted in
a reduction of total fat mass, an increase of total muscle mass, and appeared to
exert a favourable effect on fatigue and serum lipids.
The effects of L-carnitine L-tartrate supplementation on hormonal
responses to resistance exercise and recovery.
Kraemer WJ. University of
Connecticut, Storrs, CT 06269, USA.
J Strength Cond Res. 2003 Aug;17(3):455-62.
The purpose of this investigation was to examine the influence of L-carnitine L-tartrate supplementation using a balanced, cross-over, placebo-controlled research
design on the anabolic hormone response (i.e., testosterone [T], insulin-like
growth factor-I, insulin-like growth factor-binding protein-3 [IGFBP-3], and immunofunctional and immunoreactive growth hormone [GHif and GHir]) to acute
resistance exercise. Ten healthy, recreationally weight-trained men volunteered and were matched, and after 3 weeks of supplementation (2 g carnitine per
day), fasting morning blood samples were obtained on six consecutive days
(D1-D6). Subjects performed a squat protocol (5 sets of 15-20 repetitions) on
D2. During the squat protocol, blood samples were obtained before exercise and
0, 15, 30, 120, and 180 minutes postexercise. After a 1-week washout period,
subjects consumed the other supplement for a 3-week period, and the same
experimental protocol was repeated using the exact same procedures. Expected
exercise-induced increases in all of the hormones were observed for GHir, GHif,
IGFBP-3, and T. Over the recovery period, carnitine reduced the amount of
exercise-induced muscle tissue damage, which was assessed via magnetic resonance
imaging scans of the thigh. carnitine supplementation significantly
increased IGFBP-3 concentrations prior to and at 30, 120, and 180 minutes after
acute exercise. No other direct effects of carnitine supplementation were observed on
the absolute concentrations of the hormones examined, but with more undamaged
tissue, a greater number of intact receptors would be available for hormonal
interactions. These data support the use of carnitine as a recovery supplement for
hypoxic exercise and lend further insights into the hormonal mechanisms that may
help to mediate quicker recovery.
L Carnitine pill questions
Q. Can l carnitine pill be taken the same day as acetyl carnitine supplement?
A. Yes, if the dosages of each are half of your normal dosage of
each.
Q. Since recovering from a broken ankle i piled on the
pounds and want to take carnitine pills to help get it off, but, since my
lifestyle is super stressed being a caregiver of elderly ill patients, my
adrenals may not be up to enough. Can i still take carnitine pills since it
activates the adrenals?
A. It is a good idea to use supplements in low dosages to see how
well you react to them. Carnitine pills are not know to harm the kidneys or
adrenal glands. Another option is Diet Rx. Have approval by a health care
provider particularly if you are taking medications.
Q. i'm taking a supplement that includes l-carnitine
plus vitamin b-6,b-12, fish oil, soy lecithin plus coq10. I'm experiencing rapid
heartbeat a few hours after taking this. Can l-carnitine cause rapid heart beat.
its 125mg of the l-carnitine.
A. It could be the combination of carnitine, coq10 and b vitamins.
Fish oils and soy lecithin should not cause rapid heart beat.
Is a carnitine dosage of 500 mg a day as good as 1,000
mg a day in terms of benefits and side
effects for heart tissue health?
The dosage depends on the person and the condition of their heart.
As a general guideline we prefer using lower dosages.
Q. Your site is amazing in the amount of information given
on supplements. I've been sitting here now for two hours reading and learning
... and learning more, I might add, than I have from any other site I've been
to. Usually a site that sells supplements only gives the upside of everthing.
What caught my attention right off the bat, on your site, was the balanced
portrayal of every supplement as to the good and the not so good ... for example
"don't waste your money on HGH". I appreciate and respect that honesty and
that's what got me hooked on reading more and more. Anyway, here's the
background regarding my question. I have LASIK induced Trigeminal Neuralgia ...
the nerves in my eye were damaged during the surgery. I have found no relief
from pain with traditional medications ... seizure drugs etc. I worked with
several neurologists, neuro opthamologists and pain specialists and then stopped
the drugs altogether because the side effects were just adding to the pain which
wasn't being helped anyway. So, when I recently read about acetyl-l carnitine
helping with diabetic neuropathy and it's pain I thought I'd give it a try to
see if it would do anything with my particular nerve pain which has traveled
along the trigimenal nerve path into my brain. I have no idea, of course, if
this will do anything, but I figured I'd give it a try since they're both a type
of nerve damage. Who knows, maybe I'll stumble on to something, finally. Anyway,
at the time I read the article I just scribbled down the word carnitine never
realizing until tonight, after reading your website, that carnitine is different
from acetyl-l carnitine. From what I've read here it seems that carnitine itself
is used more by the physical body whereas acetyl-l carnitine is used by the
brain. Here's my question. I have the wrong carnitine sitting here. I will order
the acetyl-l carnitine now. Is it okay to take the two together though? And if
so, would I then cut down on the dosages for each? Or would I take the
recommended doses of both since they're used by different parts of the body?
I have just started taking the carnitine but I thought I would try it alone for
awhile, then take the acetyl-l carnitine alone for awhile, when it arrives, and
then finally try taking them both together to see if the combination might prove
more helpful in my case. But I wasn't sure if it was okay to take both together
or whether or not to cut down on the dosage if I try this experiment. Thanks for
any help you can give with my question and thanks for the wonderful website!
A. It really is very difficult to predict responses to
nutrients, and sometimes the best way is by trial and error, trying one nutrient
first, taking a break, and then trying another nutrient. There is so little
research with trigeminal neuralgia and supplements so it is unexplored
territory.
I get the most wonderful 'feel good' and energy when I take SAM-e 100mg and
250 mg
of L-carnitine pills.
Some labels list L-carnitine as the fumarate in
strength of 125mg per cap. You list an acetyl L-Carnitine 300mg.
What is the conversion of acetyl L-carnitine to L-carnitine? mg for mg.
There is no easy conversion since they have different effects on
the body and mind when ingested.
Would the carnitine dosage a person uses be lower if
they are also taking
tribulus terrestris
extract
or other sexual enhancing herbal products?
Yes, since herbal stimulants and a high
carnitine dosage can increase energy levels
and too high amounts of each can cause carnitine side
effects.
I am a 80 year male in good condition. I recently
destroyed my shoulder. After surgery I was inactive for almost 6 months. The end
result is my surgery has healed, but I have very little strength. I just
finished reading your very long and informative information on carnitine. Is it
a product that would help regain some strength and muscle in my shoulder?
We can't predict if any supplement will help you. Creatine is
known to be helpful for muscle strength.
I am confused by the conflicting research on the
benefits of l-carnitine. Your reports are aligned with that of my dietician but
conflict with the research from the University of minnesota's centre for
integrated medicine research study with respect to l-carnitine and muscle
metabolism. I am on a dietary plan of restricted carbohydrates due to a
condition, whereby I overproduce cortisol, and under produce adrenaline. I have
a moderately stressful career, and lifestyle so I have learned to use my
adrenaline triggers sparingly and only when necessary. The absence of carbs in
system is the reason for introducing l-carnitine - to assist in the "regulation
of metabolism" with respect to transfer of fat energy vs my current
metabolization of muscle energy. With the hopes that the hormone balance will
return to normal. I find your papers on acetyl-l carnitine and l-carnitine to be
most interesting and wanted to tell you so. I am not surprised by the necessity
to travel from Canada to the United States to purchase l-carnitine. But for the
positive results and benefits which I am feeling, I will risk the inconvenience.
With respect to the transport across the blood brain barrier - is it necessary
or recommended to take tryptophan with l-carnitine for more affective
absorption?
There is no need to take tryptophan for l carnitine
absorption.