GNC Pro Performance® L-Carnitine 500 - GNC PRO PERFORMANCE - GNC Zoom

GNC Pro Performance® L-Carnitine 500

GNC Pro Performance® L-Carnitine 500
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GNC Pro Performance® L-Carnitine 500

60 Tablets

760411

Price: $24.99

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Description
Dietary Supplement
  • 500mg per Serving of Free Form Amino Acid
  • Fuels Nitric Oxide & Muscle Recovery
  • Helps Use Fatty Acids as Energy
L-Carnitine is a popular amino acid among bodybuilders, weight trainers and serious athletes because of its role in facilitating the metabolism of long chain fatty acids. Pro Performance L-Carnitine 500 provides 500mg of this important nutrient per pill.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Supplement Facts
As a dietary supplement, take one tablet daily on an empty stomach.
Serving Size   1 Tablets
Servings Per Container  60
Amount Per Serving   % DV
L-Carnitine (as L-Carnitine Fumarate)    500.00 mg   ** 
 ** Daily Value (DV) not established

Other Ingredients:  Corn Starch, Dicalcium Phosphate, Cellulose

No Sugar, No Artificial Color, No Artificial Flavors, No Preservatives, Sodium Free, No Wheat, No Gluten, No Soy, No Dairy, Yeast Free

Storage Instructions:  Store in a cool dry place.

Warning:  Keep out of reach of children

Distributed by: General Nutrition Corporation, Pittsburgh, PA 15222
Health Notes

L-Carnitine

L-Carnitine
  • Reliable and relatively consistent scientific data showing a substantial health benefit.
  • Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
  • For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

Our proprietary "Star-Rating" system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.

For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.

This supplement has been used in connection with the following health conditions:

Used for AmountWhy
Angina
1 gram two or three times per day3 stars[3 stars]
Supplementing with L-carnitine may improve heart function and ease angina symptoms.
Congestive Heart Failure
500 mg two to three times per day with a doctor's supervision 3 stars[3 stars]
Supplementing with L-carnitine can improve heart function and exercise capacity and reduce heart muscle damage due to insufficient oxygen.
Heart Attack
2 grams daily3 stars[3 stars]
Taking L-carnitine may help reduce damage and complications following a heart attack.
Intermittent Claudication
2 grams dailyas Propionyl-L-Carnitine3 stars[3 stars]
In double-blind trials, supplementing with either L-carnitine or propionyl-L-carnitine (a form of L-carnitine) has increased walking distance in people with intermittent claudication.
Attention Deficit-Hyperactivity Disorder
100 mg per 2.2 lbs (1 kg) of body weight daily, up to a maximum of 4 grams per day 2 stars[2 stars]
In a double-blind study, supplementing with L-carnitine resulted in improvement in 54% of a group of boys with ADHD, compared with a 13% response rate in the placebo group.
Autism
50 mg per kilogram of body weight per day (half in the morning, half in the evening) 2 stars[2 stars]
In a double-blind trial, supplementing with L-carnitine resulted in a modest improvement in disease severity in children with autism spectrum disorders.
Chronic Fatigue Syndrome
1 gram three times daily2 stars[2 stars]
L-carnitine is an important nutrient for energy production. Supplementation can make up for a possible deficiency.
Chronic Obstructive Pulmonary Disease
2 grams taken twice per day2 stars[2 stars]
Studies have shown that when L-carnitine is given to people with chronic lung disease, breathing during exercise improves.
Erectile Dysfunction

(Acetyl-L-Carnitine)
2 grams of each daily2 stars[2 stars]
In one study, supplementing with the combination of propionyl-L-carnitine (a form of L-carnitine) and acetyl-L-carnitine significantly improved erectile function in elderly men.
High Triglycerides
1 to 3 grams daily2 stars[2 stars]
Supplementing with L-carnitine may help normalize triglyceride levels.
Intermittent Claudication
2 grams a day of proprionyl-L-carnitine2 stars[2 stars]
In double-blind trials, supplementation with either L-carnitine or propionyl-L-carnitine (a form of L-carnitine) has increased walking distance in people with intermittent claudication.
Male Infertility
3 grams daily2 stars[2 stars]
L-carnitine appears to be necessary for normal functioning of sperm cells. Supplementing with it may improve sperm motility.
Multiple Sclerosis and Drug-Induced Fatigue
3 to 6 grams daily2 stars[2 stars]
Some drugs that are used to treat MS appear to deplete carnitine. In one trial, supplementing with L-carnitine significantly improved fatigue in 63% of drug-treated MS patients.
Sickle Cell Anemia
50 mg per 2.2 lbs (1 kg) of body weight daily2 stars[2 stars]
In a study of children with sickle cell anemia, supplementing with L-carnitine reduced the number of painful crises and improved abnormal heart function and pulmonary hypertension.
Sprains and Strains and Exercise-Related Muscle Injury
3 grams per day2 stars[2 stars]
One trial showed that people who take L-carnitine for three weeks before engaging in an exercise regimen are less likely to experience muscle soreness.
Thalassemia
50 to 100 mg per 2.2 lbs (1 kg) of body weight daily2 stars[2 stars]
Studies have shown that propionyl-L-carnitine (a form of L-carnitine) protects red blood cells of people with thalassemia against free radical damage. Supplementing with it may reduce the need for blood transfusions.
Type 1 Diabetes
0.25 mg per 2.2 lbs (1 kg) of body weight2 stars[2 stars]
Supplementing with L-carnitine may reduce cholesterol and triglyceride levels in people with diabetes.
Type 2 Diabetes
0.25 mg per 2.2 lbs (1 kg) of body weight2 stars[2 stars]
Supplementing with L-carnitine may reduce cholesterol and triglyceride levels in people with diabetes.
Asthma
Refer to label instructions 1 star[1 star]
In a double-blind trial, supplementing with L-carnitine improved lung function and overall asthma control, compared with a placebo, in children with asthma.
Athletic Performance
Refer to label instructions 1 star[1 star]
L-carnitine has been popular as a potential aid in improving athletic performance because of its role in converting fat to energy. Some studies have found that it improves certain measures of muscle physiology.
Cardiomyopathy
Refer to label instructions 1 star[1 star]
Inherited forms of cardiomyopathy seen in children may be responsive to L-carnitine.
High Cholesterol
Refer to label instructions 1 star[1 star]
Some preliminary trials report that L-carnitine reduces serum cholesterol and raises HDL cholesterol.
Liver Cirrhosis
Refer to label instructions 1 star[1 star]
L-carnitine injections have been used to improve circulation to the liver in people with cirrhosis.
Mitral Valve Prolapse
Refer to label instructions 1 star[1 star]
In one report, deficient levels of L-carnitine were found in five people with MVP. One person was given L-carnitine and experienced a complete resolution of MVP symptoms.
Obesity
Refer to label instructions 1 star[1 star]
The amino acid L-carnitine is thought to be potentially helpful for weight loss because of its role in fat metabolism.
Raynaud's Disease
Refer to label instructions 1 star[1 star]
In one study, people with Raynaud's disease who were given L-carnitine showed less blood-vessel spasm in their fingers in response to cold exposure.

L-carnitine is made in the body from the amino acids lysine and methionine, and is needed to release energy from fat. It transports fatty acids into mitochondria, the powerhouses of cells. In infancy, and in situations of high energy needs, such as pregnancy and breast-feeding, the need for L-carnitine can exceed production by the body. Therefore, L-carnitine is considered a "conditionally essential" nutrient.1

Copyright 2014 Aisle7. All rights reserved. Aisle7.com

The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.

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Ratings and Reviews

REVIEW SNAPSHOT®

by PowerReviews
GNC Pro Performance® L-Carnitine 500
 
4.4

(based on 9 reviews)

89%

of respondents would recommend this to a friend.

Pros

  • Good value (7)
  • Easy to take (5)
  • Helps with fatigue (4)
  • Tastes good / tastes fine (3)

Cons

    Best Uses

    • Daily use (7)
    • Pre-workout (4)

    Reviewed by 9 customers

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    Displaying reviews 1-9

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    (2 of 3 customers found this review helpful)

     
    4.0

    GREAT ADDITION TO YOUR WORKOUT/DIET

    By jisland

    from SAN DIEGO CA

    About Me Competitive Athlete

    See all my reviews

    Pros

    • Easy To Take
    • Good Value
    • Helps With Fatigue

    Cons

      Best Uses

      • Daily Use
      • Pre-workout

      Comments about GNC Pro Performance® L-Carnitine 500:

      GOOD ADDITION TO YOUR WORKOUT/DIET SUPPLEMENTS. IT DOESNT GIVE YOU ENEGERY RIGHT OF THE BAT. BUT IT HELPS YOU AS YOU START WORKING OUT AND WITH A GOOD DIET AND WORKING OUT HELPS YOU GET LEANER AND YOU START SEEING THE DIFFERENCE IN YOUR DIET. I RECOMMEND THIS WITH A GNC MEGA SPORT, TOTAL BODY LEAN AND A GOOD DIET. YOU DONT NEED ALL THAT FANCY HIGH PRICED STUFF.

       
      5.0

      All Around Great Suppliment

      By Colbyr13

      from Durango, CO

      About Me Weightlifter

      See all my reviews

      Pros

      • Easy To Take
      • Good Value
      • Helps With Fatigue
      • Tastes Fine

      Cons

      • Not Effective

      Best Uses

      • Daily Use
      • Post-workout
      • Pre-workout

      Comments about GNC Pro Performance® L-Carnitine 500:

      This is a great product, I take it daily and I have noticed that it keeps me slim even though I eat around 5,000 calories a day to gain more weight. It helps get rid of the nuisance fat too if you work at it.

       
      5.0

      Carnitine FUMARATE

      By willrx

      from Downey, CA

      About Me Rarely Work Out

      See all my reviews

      Verified Buyer

      Pros

      • Easy To Take
      • Good Value
      • Tastes Fine

      Cons

        Best Uses

        • Daily Use

        Comments about GNC Pro Performance® L-Carnitine 500:

        If you are looking for Carnitine FUMARATE, don't look anywhere else. Other brands offer the fumarate salt form in a capsule but put the TARTRATE salt instead.

        (2 of 2 customers found this review helpful)

         
        2.0

        Hard to swallow

        By bricebrewer

        from Nashville, Tn

        About Me Weekend Warrior

        See all my reviews

        Verified Buyer

        Pros

          Cons

          • Complicated To Take

          Best Uses

          • Pre-workout

          Comments about GNC Pro Performance® L-Carnitine 500:

          If the pill was easier to swallow it would be ok. I ordered the regular GNC brand capsule and its much better.

          (0 of 2 customers found this review helpful)

           
          5.0

          Great for an overweight senior

          By w4547

          from St. Louis, MO

          About Me Rarely Work Out

          See all my reviews

          Verified Buyer

          Pros

          • Easy To Take
          • Good Value
          • Helps loose lbs
          • Tastes Fine

          Cons

            Best Uses

            • Daily Use
            • Dietary Replacement

            Comments about GNC Pro Performance® L-Carnitine 500:

            It slows down how much I eat.

            (3 of 3 customers found this review helpful)

             
            5.0

            Great for Hyperthyroidism

            By spoltlady

            from Iowa

            See all my reviews

            Pros

            • Helps With Immune System

            Cons

            • None

            Best Uses

              Comments about GNC Pro Performance® L-Carnitine 500:

              I have hyperthyroidism caused by graves disease and this helps lower my thyroid levels.

              (6 of 9 customers found this review helpful)

               
              5.0

              helps the body move fat

              By Kcbery

              from Texas

              See all my reviews

              Verified Buyer

              Pros

              • Good Value
              • Helps With Fatigue
              • Helps With Immune System
              • Helps With Stress

              Cons

                Best Uses

                • Daily Use
                • Recovery From Injury

                Comments about GNC Pro Performance® L-Carnitine 500:

                I am a handicapped person.Carnitine aids in properly helping excess fat deposits from building on my body.I also exercise daily and it boost my energy.I have also noticed it improves my mental outlook.I take no drugs that Doctors try to prescribe to me for physical and mental problems from my handicap.Carnitine helps both.

                (4 of 5 customers found this review helpful)

                 
                4.0

                Love this, wouldn't replace it!

                By brittany_norton14

                from Tinker AFB, OK

                About Me Runner, Workout Daily

                See all my reviews

                Pros

                • Easy To Take
                • Good Value
                • Helps With Fatigue
                • Tastes Fine

                Cons

                  Best Uses

                  • Daily Use
                  • Dietary Replacement
                  • Post-workout

                  Comments about GNC Pro Performance® L-Carnitine 500:

                  I like to take it after I workout and one at lunch. It increases my metabolism and gives me energy throughout the day.

                  (2 of 11 customers found this review helpful)

                   
                  5.0

                  l-carnitine

                  By kellyraye88

                  from Kansas City, MO

                  About Me Weekend Warrior

                  See all my reviews

                  Pros

                  • Good Value

                  Cons

                    Best Uses

                    • Daily Use
                    • Pre-workout

                    Comments about GNC Pro Performance® L-Carnitine 500:

                    Great value.

                    Displaying reviews 1-9

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