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GNC Pro Performance® L-Carnitine 500
60 Tablets760411
Price: $24.99
Member Price: $22.49
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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
* 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
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As a dietary supplement, take one tablet daily on an empty stomach.
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
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 - Health Notes
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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 Amount Why Angina1 gram two or three times per day 
[3 stars] Supplementing with L-carnitine may improve heart function and ease angina symptoms.Congestive Heart Failure500 mg two to three times per day with a doctor's supervision [3 stars] Supplementing with L-carnitine can improve heart function and exercise capacity and reduce heart muscle damage due to insufficient oxygen.Heart Attack2 grams daily [3 stars] Taking L-carnitine may help reduce damage and complications following a heart attack.Intermittent Claudication2 grams daily as Propionyl-L-Carnitine [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 Disorder100 mg per 2.2 lbs (1 kg) of body weight daily, up to a maximum of 4 grams per day 
[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.Autism50 mg per kilogram of body weight per day (half in the morning, half in the evening) [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 Syndrome1 gram three times daily [2 stars] L-carnitine is an important nutrient for energy production. Supplementation can make up for a possible deficiency.Chronic Obstructive Pulmonary Disease2 grams taken twice per day [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 daily [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 Triglycerides1 to 3 grams daily [2 stars] Supplementing with L-carnitine may help normalize triglyceride levels.Intermittent Claudication2 grams a day of proprionyl-L-carnitine [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 Infertility3 grams daily [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 Fatigue3 to 6 grams daily [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 Anemia50 mg per 2.2 lbs (1 kg) of body weight daily [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 Injury3 grams per day [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.Thalassemia50 to 100 mg per 2.2 lbs (1 kg) of body weight daily [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 Diabetes0.25 mg per 2.2 lbs (1 kg) of body weight [2 stars] Supplementing with L-carnitine may reduce cholesterol and triglyceride levels in people with diabetes.Type 2 Diabetes0.25 mg per 2.2 lbs (1 kg) of body weight [2 stars] Supplementing with L-carnitine may reduce cholesterol and triglyceride levels in people with diabetes.AsthmaRefer to label instructions 
[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 PerformanceRefer to label instructions [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.CardiomyopathyRefer to label instructions [1 star] Inherited forms of cardiomyopathy seen in children may be responsive to L-carnitine.High CholesterolRefer to label instructions [1 star] Some preliminary trials report that L-carnitine reduces serum cholesterol and raises HDL cholesterol.Liver CirrhosisRefer to label instructions [1 star] L-carnitine injections have been used to improve circulation to the liver in people with cirrhosis.Mitral Valve ProlapseRefer to label instructions [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.ObesityRefer to label instructions [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 DiseaseRefer to label instructions [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 2013 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 2014.
- Label
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- Ratings and Reviews
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REVIEW SNAPSHOT®
by PowerReviewsPros
- Good value (5)
- Easy to take (3)
- Tastes good / tastes fine (3)
Cons
Best Uses
- Daily use (5)
Reviewed by 7 customers
Sort by
Displaying reviews 1-7
Pros
- Easy To Take
- Good Value
- Tastes Fine
Cons
Best Uses
- Daily Use
Comments about GNC Pro Performance® L-Carnitine:
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.
Pros
Cons
- Complicated To Take
Best Uses
- Pre-workout
Comments about GNC Pro Performance® L-Carnitine:
If the pill was easier to swallow it would be ok. I ordered the regular GNC brand capsule and its much better.
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:
It slows down how much I eat.
Pros
- Helps With Immune System
Cons
- None
Best Uses
Comments about GNC Pro Performance® L-Carnitine:
I have hyperthyroidism caused by graves disease and this helps lower my thyroid levels.
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:
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.
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:
I like to take it after I workout and one at lunch. It increases my metabolism and gives me energy throughout the day.
Pros
- Good Value
Cons
Best Uses
- Daily Use
- Pre-workout
Comments about GNC Pro Performance® L-Carnitine:
Great value.
Displaying reviews 1-7
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