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Optimum Nutrition L-Carnitine 500mg Tablets, 60 Count

4.4 4.4 out of 5 stars 405 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Optimum Nutrition
Flavor L-Carnitine
Unit Count 60 Count
Item Form Tablet
Item Weight 4 ounces
Item dimensions L x W x H 2 x 2 x 4.13 inches
Product Benefits Weight Loss Support
Age Range (Description) Adult
Number of Items 1
Dosage Form 500

About this item

  • 500MG L-CARNITINE PER SERVING –
  • HELP BURN BODY FAT – aids in transporting fat in the body for oxidation*
  • GOOD SOURCE OF CALCIUM– essential mineral that support the role of numerous bodily functions*
  • SINGLE-TABLET DOSAGE – consume 1 tablet twice daily before meals
  • AVAILABLE IN 60ct BOTTLES
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Product Description

Product Description

L-Carnitine is an important amino acid that can help transport fat to the muscle to be burned as energy. In promoting better utilization of body fat, it may aid in weight loss and improve athletic performance.

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L-Carnitine is an important amino acid that can help transport fat to the muscle to be burned as energy. In promoting better utilization of body fat, it may aid in weight loss and improve athletic performance.

Quality Counts: GMP Certified Products
Optimum Nutrition's commitment to quality is evident throughout the entire product development process. As a continued measure of quality, all vendors must provide a Certificate of Analysis for each raw material supplied. The certified analyses are also verified through random in-house and independent laboratory testing. To further diminish any chance of physical, chemical, and microbiological contaminants, ON has established and implemented a Hazard Analysis Critical Control Point (HACCP) program. Quality assurance professionals make routine checks on all storage, blending, and production areas and conduct daily inspections.


About Optimum Nutrition: True Strength
Since 1986, Optimum Nutrition has been supporting the nutrition goals of elite athletes and goal-driven individuals around the world. Building on a foundation of company owned and operated production facilities, unparalleled manufacturing expertise, and uncompromising quality standards, ON continually strives to bring athletes and active individuals sports nutrition solutions designed to make a real difference in performance. Whether your goals involve strength, speed, power, endurance - or any combination - ON supplements work as hard as you do. Realize your True Strength with the quality and innovation leader.

What's in the Box
Optimum Nutrition L-Carnitine 500mg, 60 tablets.


Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2 x 2 x 4.13 inches; 4 ounces
  • Item model number ‏ : ‎ 1077234
  • Date First Available ‏ : ‎ December 30, 2003
  • Manufacturer ‏ : ‎ Glanbia Performance Nutrition
  • ASIN ‏ : ‎ B0001FSW4U
  • Customer Reviews:
    4.4 4.4 out of 5 stars 405 ratings

Important information

Safety Information

Check with a qualified healthcare professional before using this product if you are under 18 years of age, pregnant or nursing a baby or if you have any known or suspected medical condition(s) and/or are taking any prescription or OTC medication(s).The product is labelled to United States standards and may differ from similar products sold elsewhere in its ingredients, labeling and allergen warnings

Ingredients

L-Carnitine Tartrate, DiCalcium Phosphate, Stearic Acid, Silica, Pharmaceutical Glaze, Magnesium Stearate, Croscarmellose Sodium.

Directions

As a dietary supplement, consume 1-2 tablets twice daily before meals.

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
405 global ratings

Customers say

Customers like the energy-boosting properties of the nutritional supplement. They say it works well and is worth it for your fitness goals. However, some customers have mixed opinions on the value and quality.

AI-generated from the text of customer reviews

35 customers mention35 positive0 negative

Customers like the energy of the nutritional supplement. They mention that it works well, and provides enough energy for a full hour of exercise. Some say that it's worth it for their fitness goals.

"...Great product! Gave me amazing energy too. At one point I was able to do 80mins of crossfit on an empty stomach without hitting "empty"...." Read more

"...It gave me enough energy or endurance for a full hour of exercise, and felt better the rest of the day than if I had not taken it...." Read more

"This product is very good but you have to stack it with CLR every day and at least get 3 to 4 g of each every day. For best results I do..." Read more

"With a good diet and workout routine, this seems to work well for me and I can see results when I use it...." Read more

3 customers mention3 positive0 negative

Customers find the pills easy to take and say it gives them energy. They also say one jar lasts about a month and they don't have headaches.

"...The pills are easy to take and one jar last approximately a month. Definitely worth including in your supplement stack during your cutting routine." Read more

"It works. I take one before my work out, give me energy and no headache." Read more

"I usually use the liquid but the pills are easy enough...." Read more

9 customers mention6 positive3 negative

Customers have mixed opinions about the quality of the nutritional supplement. Some customers say it's small but high quality, while others say it arrived with quite a lot of pills broken and crumbled after a few days.

"...On that basis, I'm sure the pills are great quality, but I will likely switch back to my old brand once these are used." Read more

"As usual with Optimum Nutrition - good quality product. Satisfied with purchase." Read more

"...The pills aren't too big, though they will crumble after a few days outside of their bottle (or someother air tight container)..." Read more

"Quality seems great and works as advertised." Read more

9 customers mention5 positive4 negative

Customers are mixed about the value of the nutritional supplement. Some mention that the quality and price make it a great value, while others say that it's a bit pricey.

"...See attached photo for pill and bottle size.Pros- good price- seems to help me at leastCons-..." Read more

"Other than being kinda expensive I would say great product works well......" Read more

"great product, affordability and quality, optimum nutrition one of the best companies out there for supplements, would highly recommend, A+ rating" Read more

"OK, but too expensive." Read more

Good for a Workout Boost
5 Stars
Good for a Workout Boost
While this supplement might be used in some rare muscle disorders, this is more commonly used by people who want to augment their workout.Examine.com is a good supplement website to see what the studies show.The pills aren't too big, though they will crumble after a few days outside of their bottle (or someother air tight container)See attached photo for pill and bottle size.Pros- good price- seems to help me at leastCons- need to store in bottle or airtight container**Hit helpful, if I helped you!**
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Top reviews from the United States

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Reenie
5.0 out of 5 stars Great Product
Reviewed in the United States on February 18, 2012
Verified Purchase
Before taking L-carnitine I was at a five month plateau with my weight loss. I decided to take a leap of faith by supplementing with L-carninine as a fat burner...it worked. I lost ten pounds and am finally at the point that I see definition in my abs and legs and am starting to see shape in my arms. Great product! Gave me amazing energy too. At one point I was able to do 80mins of crossfit on an empty stomach without hitting "empty". I would recommend this to anyone who is serious about taking their physique to the next level but needs a little extra push.
17 people found this helpful
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Paige Polley
5.0 out of 5 stars It works! The athletes' favorite
Reviewed in the United States on July 13, 2013
Verified Purchase
This finally helped me lose weight after trying everything under the sun {exercise/diet} but couldn't. I was taking 2 tablets twice a day with meals. On days I exercised, I took 4 tablets an hour prior with a meal. It gave me enough energy or endurance for a full hour of exercise, and felt better the rest of the day than if I had not taken it. After only a few months, I was finally able to reach my goal weight.

I also took CLA  Olympian Labs CLA -- 3000 mg - 210 Softgels  with food 3 times a day. There are books written by doctors which recommend taking 3-5 grams of L-carnitine an hour before exercise! depending on body weight. L-carnitine is a regular supplement for bodybuilders.

Once I reached my goal weight -- overall losing 30 lbs -- I felt that L-carnitine is still worth taking to help MAINTAIN the ideal body weight {only 1 tablet with meals twice a day now}. It's my "secret" to good health. This particular brand is the most potent compared to others -- I've tried most other brands in an effort to "save" money -- so it's a lesson learned, and only buy this Optimum Nutrition brand since.

Note that L-Carnitine is different than ALC ~ Acetyl-L-Carnitine which is promoted as having positive effects on memory or the brain. L-Carnitine is a different supplement and works on the mitochondrial cells/body muscles.

Update 8/21/2018: These days, I make sure to take L-Carnitine with vitamin C or eat vitamin C-rich foods. Another precaution I found out, it must be taken at least 2 hours away from any thyroid medication, iron, and mineral supplements. L-Carnitine is essential for the liver to work properly [e.g. energy production], and some people could have a deficiency in carnitine.
As for the other reviewer stating muscle cramps or RLS, he probably only needed to make sure he's not deficient in essential minerals such as magnesium and potassium. :)
35 people found this helpful
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brad peasley
5.0 out of 5 stars Fabulous product if you use it correctly
Reviewed in the United States on September 14, 2017
Verified Purchase
This product is very good but you have to stack it with CLR every day and at least get 3 to 4 g of each every day. For best results I do
CLA- 4.5 gram
L- Carnitine- 3 grams
Fish oil- 7 grams
One person found this helpful
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sj
4.0 out of 5 stars Amazon, please carry this again!
Reviewed in the United States on February 4, 2013
Verified Purchase
With a good diet and workout routine, this seems to work well for me and I can see results when I use it. I am half way through my 2nd bottle and wanted to order more however atm amazon is not carrying it for some reason.

Update: Amazon has it back in-stock atm (4-1-2013), but raised price from $19.95 to $25.21.... too much! will pass for better price.
2 people found this helpful
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Londonnoise
3.0 out of 5 stars I trust the brand, but don't like the design flaw.
Reviewed in the United States on October 1, 2015
Verified Purchase
I'm a great believer in these pills, and have used other brands with what I believe is great success.
I like the Optimum Nutrition brand very much and while it's hard to get concrete proof (without a battery of medical tests), I'm sure these will be of the highest quality.
However, in the case of these pills, they are quite powdery and arrived with quite a lot of the pills broken. I'm still using them as I take a couple of bits about the size of a single pill out and take those, but there is a design flaw here.
On that basis, I'm sure the pills are great quality, but I will likely switch back to my old brand once these are used.
3 people found this helpful
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Andrew
5.0 out of 5 stars Good for a Workout Boost
Reviewed in the United States on June 30, 2015
Verified Purchase
The media could not be loaded.
 While this supplement might be used in some rare muscle disorders, this is more commonly used by people who want to augment their workout.
Examine.com is a good supplement website to see what the studies show.
The pills aren't too big, though they will crumble after a few days outside of their bottle (or someother air tight container)
See attached photo for pill and bottle size.

Pros
- good price
- seems to help me at least

Cons
- need to store in bottle or airtight container

**Hit helpful, if I helped you!**
Customer image
Andrew
5.0 out of 5 stars Good for a Workout Boost
Reviewed in the United States on June 30, 2015
While this supplement might be used in some rare muscle disorders, this is more commonly used by people who want to augment their workout.
Examine.com is a good supplement website to see what the studies show.
The pills aren't too big, though they will crumble after a few days outside of their bottle (or someother air tight container)
See attached photo for pill and bottle size.

Pros
- good price
- seems to help me at least

Cons
- need to store in bottle or airtight container

**Hit helpful, if I helped you!**
Images in this review
Customer image
Customer image
22 people found this helpful
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Prudence Jones
5.0 out of 5 stars Rocket Fuel Ignition!
Reviewed in the United States on May 18, 2011
Verified Purchase
Let me tell you about this stuff! All L-Carnitine is not created equal!
I started taking L-Carnitine a couple of years ago because I don't eat meat; the L-Carnitine product I got at Walgreen's didn't do a thing; the Whole Foods Market brand worked well-- but I had read that the Optimum was one of the best, so I gave it a try.
I took the Optimum for two months and I felt great; but little did I know just how great, until I ran out of it for a couple of days... It was like running into a brick wall; my energy level plummeted without it!
500 mg of anything else is NOT like 500 mg of the Optimum Nutrition L-Carnitine! I've been in a weight loss; muscle building mode for awhile already; and I've been extremely successful. I am convinced this product enhances the body's ability to turn fat into energy.
33 people found this helpful
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Itzel Terrazas
5.0 out of 5 stars Need them back
Reviewed in the United States on March 20, 2022
Verified Purchase
Me he sentido muy bien tomándolas, junto con la dieta y el ejercicio me ayudo a bajar 6 kilos x ahora y siento que tuve la energía necesaria combinándolo con las vitaminas opti woman necesarias para una vida óptima.
One person found this helpful
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