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Doctor's Best

L-Carnitine Fumarate with Biosint

Item | DB138

$38.94
5% OFF
$40.99
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Supplement Facts

Serving Size 1 veggie capsule

Servings per container 180 servings

  Amount per serving %Daily Value
L-Carnitine Fumarate(yielding 500 mg L-Carnitine) 855 mg

† Daily Value not established.

Other Ingredients: Modified cellulose (vegetarian capsule), magnesium stearate (vegetable source), silicon dioxide.

Suggested Adult Use: Take 1 capsule daily, with or without food, or more as recommended by a nutritionally-informed physician.

Individuals with thyroid problems or on anticoagulant therapy should consult their physician before using this product.

Store in a cool dry place.

BIOSINT™ Carnitines are manufactured in Rome, (Pomezia) Italy.

  • Non-GMO
  • Gluten Free
  • Soy Free
  • The L-Carnitine Fumarate in this product is derived from a base of pharmaceutical grade L-Carnitine manufactured by a patented, FDA-approved process.
  • It is GMO-free, pesticide-free, and BSE free.
  • Vegan™
  • Veggie Caps
  • L-Carnitine Fumarate with Biosint Carnitines from Doctor's Best



  • Helps support healthy weight loss



  • Maintains a healthy cardiovascular system


Doctor's Best L-Carnitine Fumarate with Biosint Carnitines delivers 855 mg of this naturally fat-burning supplement. It helps support healthy weight loss and maintain normal cardiovascular health. L-carnitine is a nutrient that promotes energy production in cells by transporting fatty acids into the mitochondrion, an intracellular structure that generates metabolic energy in the form of ATP. Fumarate is a naturally occurring compound in the body that serves as an intermediate in the Krebs cycle, a key energy-producing process that takes place in the mitochondrion. Vegan.

Terms and Ingredient Definitions

Shipping Weight: .50 lbs

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.

MSRP: $72.99

For our website and catalog, the MSRP is the "Manufacturer's Suggested Retail Price." The MSRP is understood to mean the price at which a manufacturer will recommend a retailer sell a product for in stores, on the internet, or in catalogs. The MSRP of National brand items are dictated to Swanson by each manufacturer. For Swanson brand items, the MSRP is calculated based on a varying percentage above the product's base price.

Rated 5 out of 5 by from Good Value Ubiquinol can be costly, so I was happy to find this product at such a reasonable price. I buy a lot of Doctor's Best products, and am always satisfied.
Date published: 2013-03-12
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Swanson Health started in 1969 in Fargo, ND with a mission to offer pure and potent health products at a great value. Nearly 50 years later, we continue to innovate science-backed vitamins and supplements, delivering wellness solutions that help people live simply healthier together, and find vitality at any age. Click here to learn more about us.

For nearly 50 years, Swanson Health's research and development team has delivered science-backed health and wellness products to people around the world. Our innovation is guided by clinical research, scientific consensus, emerging research and usage traditions, creating products that help you find vitality at any age. At Swanson, we don't hide our science behind proprietary formulas — we believe in easy-to-read, transparent labelling. What's printed on our labels, is exactly what you'll find in our products.

Swanson Health's purity and potency testing begins with our ingredient sourcing, continues through manufacturing, and goes beyond when a product hits the shelf. Our testing exceeds industry standards, ensuring each product meets our quality guarantees for purity and potency. Swanson facilities are Good Manufacturing Practices (GMP) certified, and we voluntarily participate in third-party, independent laboratory testing. With Swanson, you can be sure you're getting the most pure and potent health products at a great value. Click here to learn more about our quality standards.

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