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2017's 10 Best
L-Carnitine Supplements

Burn More Fat, Feel More Energy

Carnitine is an amino acid that is found in a variety of meats and dairy. It is possible to be deficient if following a vegetarian or vegan diet, or from aging. Carnitine is able to convert fat into energy to boost weight loss, minimize fatigue, and enhance strength.

Carnitine is available in several forms, ranging from L-Carnitine, Acetyl-L-carnitine, and L-Carnitine L-Tartrate. While all forms can adequately supplement L-Carnitine, Acetyl-Carnitine due to it’s acetyl group can bypass the blood-brain barrier for enhanced cognitive effects and nerve support.

Carnitine is a necessary component of ATP (energy) production, by transporting fatty acids into mitochondria to be utilized in the Krebs Cycle. This process also triggers fat oxidation for potential weight loss. Restoring Carnitine loss from exercise is also key for quick recovery and optimal muscle energy production.

Our editorial board analyzed over 100 of the highest rated carnitine products on the market and consolidated their research into the 10 Best L-Carnitine products. Each of these carnitine supplements delivers quality Carnitine in clinically proven doses for maximum benefits. Each product is backed by a 60 day money back guarantee for results that you can depend on.

#1 - Nutricost L-Carnitine Tartrate

The Standout: Pure Formula, Low Cost

Nutricost's L-Carnitine Tartrate is pure L-Carnitine, delivering 1 gram per serving. With 100 servings per bottle, each serving equates to a mere 11 cents, making it one of the best priced L-Carnitine Tartrate supplements on the market. The convienent, unflavored powder form makes it great for stacking, so you can customize your own health regimen.

  • 1 Gram L-Carnitine Tartrate
  • 100 Servings Per Bottle
  • 11 Cents Per Serving
  • Boost Fat Oxidation
  • Enhance Exercise Performance

L-Carnitine Tartrate is an amino acid that can be obtained through dietary measures, and is also synthesized by the amino acids Lysine and L-methionine. However, it is still possible to be deficient, especially for those who are vegetarians, vegans, or elderly.

L-Carnitine Tartrate is able to bind to long-chain fatty acids and transports them into the mitochondria for the purpose of fat oxidation and energy expenditure. Carnitine supplementation can also reduce the degredation of mitochondria in muscle after exercise, along with the natural mitochondrial decline seen with aging.

Nutricost's L-Carnitine Tartrate can help reinforce healthy mitochondial function, allowing for optimal fat burning, athletic performance and energy. Reviews on Amazon highlight how easy it is to mix L-Carnitine Tartrate into your favorite beverage and reap the benefits.

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#2 - Optimum Nutrition L-Carnitine

The Standout: Highly Bio-Available Formula

Optimum Nutrition's L-Carnitine 500 Tabs combines 500 mg of pure free-form, pharmaceutical grade L-Carnitine with an efficacious dose of Calcium and Phosphorus. Calcium and Phosphorus both help improve absorption and support proper electrolyte balance. Whether your choose to use L-Carnitine for heart health, endurance, or weight loss support, Optimum Nutrition provides superior quality.

  • 500 Mg L-Carnitine
  • 95 Mg Calcium
  • 60 Servings Per Bottle
  • Added Calcium & Phosphorous
  • High-Quality

Carnitine is an amino acid that aids in the conversion of fatty acids into ATP, which provides energy. Supplementing with additional Carnitine has been suggested to restore Carnitine levels that are depleted during exercise, allowing for better recovery, enhanced energy levels, and optimal fat burning potential.

Optimum Nutrition's L-Carnitine includes Calcium, since L-Carnitine reduces the levels of free Calcium by in circulation, due to bonding to it during the process of entering the mitochondria. Excess Calcium also increases the amount of L-Carnitine that is able to pass through the Mitochondrial wall, effectively enhancing bio-availability.

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#3 - BSN Carnitine DNA

The Standout: High Quality

BSN's Carnitine DNA provides a scientifically supported dose of pure L-Carnitine to increase the ability to burn fat while enhancing muscle growth capacity. Carnitine DNA contains no fillers or proprietary blends, just 500 grams of pure Carnitine in a 1-tablet dose that is the perfect addition to any stack to maximize natural fat loss and energy levels.

  • 500 Mg L-Carnitine
  • 60 Servings Per Bottle
  • Boost Fat Loss
  • Enhance Energy Levels

During exercise, fat is shuttled to cells in the form of fatty acids, where mitochondria break it down into energy. However, fat is unable to pass through the mitochondrial cell wall without Carnitine. Therefor it is vital to have adequate levels of Carnitine in circulation to optimize fat burning to promote weight loss and higher energy levels.

BSN Carnitine DNA ensures fat burning at a maximum rate and increase in energy levels. The tablet dosage makes it convenient to take on the go, making it the perfect addition to any regimen.

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#4 - Acetyl L-Carnitine Powder

Nutricost has another high-quality, affordable L-Carnitine supplement, this time in the form of Acetyl L-Carnitine, with 1 gram in each scoop. Acetylation refers to the process of introducing an acetyl group into a compound, in this case L-Carnitine, which is broken down into the coenzyme acetyl-CoA and Carnitine.

Acetyl-CoA is the primary substrate for the Krebs cycle (which produces ATP for energy), and once the Acetyl group is removed, it must be replaced with another acetyl-group in order for the Krebs cycle to keep working. Nutricost's Acetyl L-Carnitine ensures high quality Acetyl L-Carnitine to keep energy production at optimal levels.

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SPECIAL OFFER - BOGO 50% OFF When you buy 1 bottle of Nutricost's Acetyl L-Carnitine Powder, get the 2nd bottle half off! Discount applies automatically in cart.View Offer »

#5 - GAT Essentials Liquid L-Carnitine

GAT's Essentials Liquid L-Carnitine provides a generous 1500 mg dosage, in liquid free form. Perfect to add to your favorite pre or post workout beverage, in order to replenish L-Carnitine levels to adequate levels. L-Carnitine promotes healthy mitochondria function, the organelle responsible for regulating ATP production for energy.

By promoting optimal energy production, GAT's L-Carnitine can help boost stamina, performance, and fat burning.

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SPECIAL OFFER - 20% OFF! This week only, save 20% off on GAT's Liquid L-Carnitine. Discount applies automatically in cart.View Offer »

#6 - MuscleTech Platinum 100% Carnitine

With 500 Mg of the most studied form of L-Carnitine, Platinum 100% Carnitine supports weight loss, muscle recovery, and fitness performance without the use of stimulants. Platinum 100% Carnitine works rapidly to aid in the metabolism of food into energy, speed muscle recovery, and increase testosterone receptor concentration. Keep Reading »

#7 - Universal Nutrition Carnitine Capsules

Designed to be a metabolizer of fat that is also free of stimulants, Universal Nutrition has come up with a potent supplement they call Carnitine Capsules. Providing the industry standard of 500mg of the purest and highest-quality L-Carnitine available, each serving has the potential to improve overall athletic performance and enhance cardiovascular health. Keep Reading »

#8 - GAT Essentials L-Carnitine

GAT also has a high-quality capsule form of their popular L-Carnitine supplement, which delivers 500 mg in each serving. L-Carnitine Tartrate has been shown to increase androgen receptor sensitivity and availability, ultimately aiding in up-regulation of testosterone at androgen receptor sites. This up-regulation of Testosterone promotes muscle building and boosted performance.

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#9 - Nutrex Lipo-6 Carnitine

This powerful fat eliminating formula suppresses your appetite and transports fatty acids to the energy-producing powerhouse of cells to aid you in successful weight loss. Nutrex Lipo-6 Carnitine comes in 60 liquid capsules that absorb rapidly, allowing more Carnitine to enter your system to enhance exercise performance and lengthen endurance. Keep Reading »

#10 - ProSupps L-Carnitine 1500

Want 100% pharmaceutical grade L-Carnitine in an incredible 1,500mg dose? Choose ProSupps Liquid L-Carnitine 1500, a delicious source of highly bioavailable Carnitine in a convenient single serving bottle. Sip on a tasty L-Carnitine 1500 beverage to promote exercise recovery, energy, fat metabolism, heart health, and mental clarity. Keep Reading »

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